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Optimization of nonlinear optical properties of ZnO micro and nanocrystals for biophotonicsBen E. Urban, Jie Lin, Os Kumar, Kasilingam Senthilkumar, Yasuhisa Fujita, and Arup Neogi »View Author Affiliations
Ben E. Urban,1
Jie Lin,1
Os Kumar,2
Kasilingam Senthilkumar,2
Yasuhisa Fujita,2
and Arup Neogi1,*
1Department of Physics, University of North Texas, 1155 Union Circle, Denton, TX 76203, USA 2Department of Electronic and Control System Engineering, Shimane University, 1060 Nishikawatsu, Matsue, 6908504, Japan *Corresponding author: arup@unt.edu |
Optical Materials Express, Vol. 1, Issue 4, pp. 658-669 (2011)
http://dx.doi.org/10.1364/OME.1.000658
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Abstract
The defect and impurity states in ZnO nanocrystals synthesized using the plasma arc technique can be modified to optimize the nonlinear optical properties for optoelectronic and biophotonic applications. Highly efficient second harmonic signals over a wide range of near-infrared wavelengths, spanning from 735 nm-980 nm, has been observed and can be used in biological imaging. The use of further high energy excitation ranging from 700 nm-755 nm leads to two-photon absorption and yields broadband two photon emission extending from the 370 nm-450 nm wavelength regime which can be useful for therapeutic applications.
© 2011 OSA
OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(180.4315) Microscopy : Nonlinear microscopy
ToC Category:
Nonlinear Optical Materials
History
Original Manuscript: June 24, 2011
Revised Manuscript: July 12, 2011
Manuscript Accepted: July 12, 2011
Published: July 21, 2011
Citation
Ben E. Urban, Jie Lin, Os Kumar, Kasilingam Senthilkumar, Yasuhisa Fujita, and Arup Neogi, "Optimization of nonlinear optical properties of ZnO micro and nanocrystals for biophotonics," Opt. Mater. Express 1, 658-669 (2011)
http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-1-4-658
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References
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- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
- E. S. P. Leong, S. F. Yu, and S. P. Lau, “Directional edge-emitting UV random laser diodes,” Appl. Phys. Lett. 89(22), 221109 (2006). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- T. Voss, I. Kudyk, L. Wischmeier, and J. Gutowski, “Nonlinear optics with ZnO nanowires,” Phys. Status Solidi B 246(2), 311–314 (2009). [CrossRef]
- P. Pantazis, J. Maloney, D. Wu, and S. E. Fraser, “Second harmonic generating (SHG) nanoprobes for in vivo imaging,” Proc. Natl. Acad. Sci. U.S.A. 107(33), 14535–14540 (2010). [CrossRef] [PubMed]
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- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
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- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- J. Bang and K. J. Chang, “Atomic structure and diffusion of hydrogen in ZnO,” J. Korean Phys. Soc. 55(1), 98–102 (2009). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- M. G. Wardle, J. P. Goss, and P. R. Briddon, “Theory of Fe, Co, Ni, Cu, and their complexes with hydrogen in ZnO,” Phys. Rev. B 72(15), 155108 (2005). [CrossRef]
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
- J. Bang and K. J. Chang, “Atomic structure and diffusion of hydrogen in ZnO,” J. Korean Phys. Soc. 55(1), 98–102 (2009). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- P. Pantazis, J. Maloney, D. Wu, and S. E. Fraser, “Second harmonic generating (SHG) nanoprobes for in vivo imaging,” Proc. Natl. Acad. Sci. U.S.A. 107(33), 14535–14540 (2010). [CrossRef] [PubMed]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, and Y. Fujita, “Hydrogen related defect complexes in ZnO nanoparticles,” Appl. Phys. Lett. 97(9), 091907 (2010). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
- M. G. Wardle, J. P. Goss, and P. R. Briddon, “Theory of Fe, Co, Ni, Cu, and their complexes with hydrogen in ZnO,” Phys. Rev. B 72(15), 155108 (2005). [CrossRef]
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
- T. Voss, I. Kudyk, L. Wischmeier, and J. Gutowski, “Nonlinear optics with ZnO nanowires,” Phys. Status Solidi B 246(2), 311–314 (2009). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
- F. Oba, A. Togo, I. Tanaka, J. Paier, and G. Kresse, “Defect energetics in ZnO: a hybrid Hartree-Fock density functional study,” Phys. Rev. B 77(24), 245202 (2008). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- T. Voss, I. Kudyk, L. Wischmeier, and J. Gutowski, “Nonlinear optics with ZnO nanowires,” Phys. Status Solidi B 246(2), 311–314 (2009). [CrossRef]
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- E. S. P. Leong, S. F. Yu, and S. P. Lau, “Directional edge-emitting UV random laser diodes,” Appl. Phys. Lett. 89(22), 221109 (2006). [CrossRef]
- E. S. P. Leong, S. F. Yu, and S. P. Lau, “Directional edge-emitting UV random laser diodes,” Appl. Phys. Lett. 89(22), 221109 (2006). [CrossRef]
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- C. Zhang, F. Zhang, T. Xia, N. Kumar, J. I. Hahm, J. Liu, Z. L. Wang, and J. Xu, “Low-threshold two-photon pumped ZnO nanowire lasers,” Opt. Express 17(10), 7893–7900 (2009). [CrossRef] [PubMed]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- P. Pantazis, J. Maloney, D. Wu, and S. E. Fraser, “Second harmonic generating (SHG) nanoprobes for in vivo imaging,” Proc. Natl. Acad. Sci. U.S.A. 107(33), 14535–14540 (2010). [CrossRef] [PubMed]
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
- F. Oba, A. Togo, I. Tanaka, J. Paier, and G. Kresse, “Defect energetics in ZnO: a hybrid Hartree-Fock density functional study,” Phys. Rev. B 77(24), 245202 (2008). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, and Y. Fujita, “Hydrogen related defect complexes in ZnO nanoparticles,” Appl. Phys. Lett. 97(9), 091907 (2010). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- F. Oba, A. Togo, I. Tanaka, J. Paier, and G. Kresse, “Defect energetics in ZnO: a hybrid Hartree-Fock density functional study,” Phys. Rev. B 77(24), 245202 (2008). [CrossRef]
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
- P. Pantazis, J. Maloney, D. Wu, and S. E. Fraser, “Second harmonic generating (SHG) nanoprobes for in vivo imaging,” Proc. Natl. Acad. Sci. U.S.A. 107(33), 14535–14540 (2010). [CrossRef] [PubMed]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, and Y. Fujita, “Hydrogen related defect complexes in ZnO nanoparticles,” Appl. Phys. Lett. 97(9), 091907 (2010). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, and Y. Fujita, “Hydrogen related defect complexes in ZnO nanoparticles,” Appl. Phys. Lett. 97(9), 091907 (2010). [CrossRef]
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
- F. Oba, A. Togo, I. Tanaka, J. Paier, and G. Kresse, “Defect energetics in ZnO: a hybrid Hartree-Fock density functional study,” Phys. Rev. B 77(24), 245202 (2008). [CrossRef]
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- F. Oba, A. Togo, I. Tanaka, J. Paier, and G. Kresse, “Defect energetics in ZnO: a hybrid Hartree-Fock density functional study,” Phys. Rev. B 77(24), 245202 (2008). [CrossRef]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, and Y. Fujita, “Hydrogen related defect complexes in ZnO nanoparticles,” Appl. Phys. Lett. 97(9), 091907 (2010). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- T. Voss, I. Kudyk, L. Wischmeier, and J. Gutowski, “Nonlinear optics with ZnO nanowires,” Phys. Status Solidi B 246(2), 311–314 (2009). [CrossRef]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- M. G. Wardle, J. P. Goss, and P. R. Briddon, “Theory of Fe, Co, Ni, Cu, and their complexes with hydrogen in ZnO,” Phys. Rev. B 72(15), 155108 (2005). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- T. Voss, I. Kudyk, L. Wischmeier, and J. Gutowski, “Nonlinear optics with ZnO nanowires,” Phys. Status Solidi B 246(2), 311–314 (2009). [CrossRef]
- P. Pantazis, J. Maloney, D. Wu, and S. E. Fraser, “Second harmonic generating (SHG) nanoprobes for in vivo imaging,” Proc. Natl. Acad. Sci. U.S.A. 107(33), 14535–14540 (2010). [CrossRef] [PubMed]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
- E. S. P. Leong, S. F. Yu, and S. P. Lau, “Directional edge-emitting UV random laser diodes,” Appl. Phys. Lett. 89(22), 221109 (2006). [CrossRef]
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
Adv. Funct. Mater.
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
Appl. Phys. Lett.
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, and Y. Fujita, “Hydrogen related defect complexes in ZnO nanoparticles,” Appl. Phys. Lett. 97(9), 091907 (2010). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
- E. S. P. Leong, S. F. Yu, and S. P. Lau, “Directional edge-emitting UV random laser diodes,” Appl. Phys. Lett. 89(22), 221109 (2006). [CrossRef]
Bull. Mater. Sci.
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
J. Alloy. Comp.
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
J. Appl. Phys.
- U. Özgür, Y. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Dogan, V. Avrutin, S. J. Cho, and H. Morkoc, “A comprehensive review of ZnO materials and devices,” J. Appl. Phys. 98(4), 041301 (2005). [CrossRef]
- A. Zubiaga, J. A. García, F. Plazaola, F. Tuomisto, K. Saarinen, J. Zuñiga Pérez, and V. Muñoz-Sanjosé, “Correlation between Zn vacancies and photoluminescence emission in ZnO films,” J. Appl. Phys. 99(5), 053516 (2006). [CrossRef]
J. Korean Phys. Soc.
- J. Bang and K. J. Chang, “Atomic structure and diffusion of hydrogen in ZnO,” J. Korean Phys. Soc. 55(1), 98–102 (2009). [CrossRef]
J. Nanosci. Nanotechnol.
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
J. Phys. Chem. C
- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
Nanotechnology
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
Opt. Express
- C. Zhang, F. Zhang, T. Xia, N. Kumar, J. I. Hahm, J. Liu, Z. L. Wang, and J. Xu, “Low-threshold two-photon pumped ZnO nanowire lasers,” Opt. Express 17(10), 7893–7900 (2009). [CrossRef] [PubMed]
Phys. Rev. B
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- M. G. Wardle, J. P. Goss, and P. R. Briddon, “Theory of Fe, Co, Ni, Cu, and their complexes with hydrogen in ZnO,” Phys. Rev. B 72(15), 155108 (2005). [CrossRef]
- F. Oba, A. Togo, I. Tanaka, J. Paier, and G. Kresse, “Defect energetics in ZnO: a hybrid Hartree-Fock density functional study,” Phys. Rev. B 77(24), 245202 (2008). [CrossRef]
Phys. Status Solidi B
- T. Voss, I. Kudyk, L. Wischmeier, and J. Gutowski, “Nonlinear optics with ZnO nanowires,” Phys. Status Solidi B 246(2), 311–314 (2009). [CrossRef]
Phys. Status Solidi C
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
Phys. Status Solidi, B Basic Res.
- B. K. Meyer, H. Alves, D. M. Hofmann, W. Kriegseis, D. Forster, F. Bertram, J. Christen, A. Hoffmann, M. Straßburg, M. Dworzak, U. Haboeck, and A. V. Rodina, “Bound exciton and donor–acceptor pair recombinations in ZnO,” Phys. Status Solidi, B Basic Res. 241(2), 231–260 (2004). [CrossRef]
Proc. Natl. Acad. Sci. U.S.A.
- P. Pantazis, J. Maloney, D. Wu, and S. E. Fraser, “Second harmonic generating (SHG) nanoprobes for in vivo imaging,” Proc. Natl. Acad. Sci. U.S.A. 107(33), 14535–14540 (2010). [CrossRef] [PubMed]
Solid-State Electron.
- K. Ip, M. E. Overberg, Y. W. Heo, D. P. Norton, S. J. Pearton, C. E. Stutz, S. O. Kucheyev, C. Jagadish, J. S. Williams, B. Luo, F. Ren, D. C. Look, and J. M. Zavada, “Hydrogen incorporation, diffusivity and evolution in bulk ZnO,” Solid-State Electron. 47(12), 2255–2259 (2003). [CrossRef]
Other
- M. D. McCluskey, S. J. Jokela, and W. M. Hlaing Oo, “Hydrogen donors in ZnO,” Materials Research Society Symposium Proceedings (2005), Vol. 864, pp. E10.4.1–E10.4.10.
2010, John, J. Nanosci. Nanotechnol.
- S. John, S. Marpu, J. Li, M. Omary, Z. Hu, Y. Fujita, and A. Neogi, “Hybrid zinc oxide nanoparticles for biophotonics,” J. Nanosci. Nanotechnol. 10(3), 1707–1712 (2010). [CrossRef] [PubMed]
- J. V. Foreman, H. O. Everitt, J. Yang, T. McNicholas, and J. Liu, “Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO,” Phys. Rev. B 81(11), 115318 (2010). [CrossRef]
- P. Pantazis, J. Maloney, D. Wu, and S. E. Fraser, “Second harmonic generating (SHG) nanoprobes for in vivo imaging,” Proc. Natl. Acad. Sci. U.S.A. 107(33), 14535–14540 (2010). [CrossRef] [PubMed]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, J. Lin, B. Urban, A. Neogi, and Y. Fujita, “Multiphonon scattering and non-radiative decay in ZnO nanoparticles,” Phys. Status Solidi C 7(6), 1586–1588 (2010). [CrossRef]
- K. Senthilkumar, M. Tokunaga, H. Okamoto, O. Senthilkumar, and Y. Fujita, “Hydrogen related defect complexes in ZnO nanoparticles,” Appl. Phys. Lett. 97(9), 091907 (2010). [CrossRef]
- H. Zeng, G. Duan, Y. Li, S. Yang, X. Xu, and W. Cai, “Blue luminescence of ZnO nanoparticles based on non-equillibrium processes: Defect origins and emission controls,” Adv. Funct. Mater. 20(4), 561–572 (2010). [CrossRef]
- J. Bang and K. J. Chang, “Atomic structure and diffusion of hydrogen in ZnO,” J. Korean Phys. Soc. 55(1), 98–102 (2009). [CrossRef]
- J. Yang, X. Liu, L. Yang, Y. Wang, Y. Zhang, J. Lang, M. Gao, and B. Feng, “Effects of annealing temperature on the structure and optical properties of ZnO nanoparticles,” J. Alloy. Comp. 477(1-2), 632–635 (2009). [CrossRef]
- T. Voss, I. Kudyk, L. Wischmeier, and J. Gutowski, “Nonlinear optics with ZnO nanowires,” Phys. Status Solidi B 246(2), 311–314 (2009). [CrossRef]
- P. Singh, A. Kumar, A. Kaushal, D. Kaur, A. Pandey, and R. N. Goyal, “In situ high temperature XRD studies of ZnO nanopowder prepared via cost effective ultrasonic mist chemical vapour deposition,” Bull. Mater. Sci. 31(3), 573–577 (2008). [CrossRef]
- F. Oba, A. Togo, I. Tanaka, J. Paier, and G. Kresse, “Defect energetics in ZnO: a hybrid Hartree-Fock density functional study,” Phys. Rev. B 77(24), 245202 (2008). [CrossRef]
- Y. L. Wu, S. Fu, A. I. Y. Tok, X. T. Zeng, C. S. Lim, L. C. Kwek, and F. C. Y. Boey, “A dual-colored bio-marker made of doped ZnO nanocrystals,” Nanotechnology 19(34), 345605 (2008). [CrossRef] [PubMed]
- A. V. Kachynski, A. N. Kuzmin, M. Nyk, I. Roy, and P. N. Prasad, “Zinc oxide nanocrystals for nonresonant nonlinear optical microscopy,” J. Phys. Chem. C 112(29), 10721–10724 (2008). [CrossRef]
- E. S. P. Leong, S. F. Yu, and S. P. Lau, “Directional edge-emitting UV random laser diodes,” Appl. Phys. Lett. 89(22), 221109 (2006). [CrossRef]
- T. M. Bo̸rseth, B. G. Svensson, A. Y. Kuznetsov, P. Klason, Q. X. Zhao, and M. Willander, “Identification of oxygen and zinc vacancy optical signals in ZnO,” Appl. Phys. Lett. 89(26), 262112 (2006). [CrossRef]
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