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High indium content InGaN films grown by pulsed laser deposition using a dual-compositing targetKun-Ching Shen, Tzu-Yu Wang, Dong-Sing Wuu, and Ray-Hua Horng »View Author Affiliations
Kun-Ching Shen,1
Tzu-Yu Wang,1
Dong-Sing Wuu,1,3,*
and Ray-Hua Horng2,4
1Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan 2Graduate Institute of Precision Engineering, National Chung Hsing University, Taichung 402, Taiwan 3Department of Materials Science and Engineering, Da-Yeh University, Changhua 515, Taiwan 4Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 701, Taiwan *Corresponding author: dsw@nchu.edu.tw |
Optics Express, Vol. 20, Issue 14, pp. 15149-15156 (2012)
http://dx.doi.org/10.1364/OE.20.015149
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Abstract
High indium compositions InGaN films were grown on sapphires using low temperature pulse laser deposition (PLD) with a dual-compositing target. This target was used to overcome the obstacle in the InGaN growth by PLD due to the difficulty of target preparation, and provided a co-deposition reaction, where InGaN grains generated from the indium and GaN vapors deposit on sapphire surface and then act as nucleation seeds to promote further InGaN growth. The effects of co-deposition on growth mechanisms, surface morphology, and electrical properties of films were thoroughly investigated and the results clearly show promise for the development of high indium InGaN films using PLD technique with dual-compositing targets.
© 2012 OSA
OCIS Codes
(160.2100) Materials : Electro-optical materials
(160.6000) Materials : Semiconductor materials
(310.1860) Thin films : Deposition and fabrication
ToC Category:
Thin Films
History
Original Manuscript: April 26, 2012
Revised Manuscript: June 4, 2012
Manuscript Accepted: June 4, 2012
Published: June 21, 2012
Citation
Kun-Ching Shen, Tzu-Yu Wang, Dong-Sing Wuu, and Ray-Hua Horng, "High indium content InGaN films grown by pulsed laser deposition using a dual-compositing target," Opt. Express 20, 15149-15156 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-14-15149
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References
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- H. Parala, A. Devi, F. Hipler, E. Maile, A. Birkner, H. W. Becker, and R. A. Fischer, “Investigations on InN whiskers grown by chemical vapour deposition,” J. Cryst. Growth231(1), 68–74 (2001). [CrossRef]
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- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
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- H. Parala, A. Devi, F. Hipler, E. Maile, A. Birkner, H. W. Becker, and R. A. Fischer, “Investigations on InN whiskers grown by chemical vapour deposition,” J. Cryst. Growth231(1), 68–74 (2001). [CrossRef]
- E. Iliopoulos, A. Georgakilas, E. Dimakis, A. Adikimenakis, K. Tsagaraki, M. Androulidaki, and N. T. Pelekanos, “InGaN (0001) alloys grown in the entire composition range by plasma assisted molecular beam epitaxy,” Phys. Status Solidi., A Appl. Mater. Sci.203(1), 102–105 (2006). [CrossRef]
- R. D. Vispute, V. Talyansky, R. P. Sharma, S. Choopun, M. Downes, T. Venkatesan, K. A. Jones, A. A. Iliadis, M. A. Khan, and J. W. Yang, “Growth of epitaxial GaN films by pulsed laser deposition,” Appl. Phys. Lett.71(1), 102–104 (1997). [CrossRef]
- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- E. Matioli, C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, S. Nakamura, J. Speck, and C. Weisbuch, “High internal and external quantum efficiency InGaN/GaN solar cells,” Appl. Phys. Lett.98(2), 021102 (2011). [CrossRef]
- O. Jani, I. Ferguson, C. Honsberg, and S. Kurtz, “Design and characterization of GaN/InGaN solar cells,” Appl. Phys. Lett.91(13), 132117 (2007). [CrossRef]
- H. Parala, A. Devi, F. Hipler, E. Maile, A. Birkner, H. W. Becker, and R. A. Fischer, “Investigations on InN whiskers grown by chemical vapour deposition,” J. Cryst. Growth231(1), 68–74 (2001). [CrossRef]
- C. Ristoscu, C. Ghica, E. L. Papadopoulou, G. Socol, D. Gray, B. Mironov, I. N. Mihailescu, and C. Fotakis, “Modification of AlN thin films morphology and structure by temporally shaping of fs laser pulses used for deposition,” Thin Solid Films519(19), 6381–6387 (2011). [CrossRef]
- A. Kobayashi, J. Ohta, and H. Fujioka, “Characteristics of InGaN with High In Concentrations Grown on ZnO at Low Temperatures,” Jpn. J. Appl. Phys.45(24), L611–L613 (2006). [CrossRef]
- J. Ohta, H. Fujioka, T. Honke, and M. Oshima, “Epitaxial growth of InN on c-plane sapphire by pulsed laser deposition with r.f. nitrogen radical source,” Thin Solid Films457(1), 109–113 (2004). [CrossRef]
- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
- E. Iliopoulos, A. Georgakilas, E. Dimakis, A. Adikimenakis, K. Tsagaraki, M. Androulidaki, and N. T. Pelekanos, “InGaN (0001) alloys grown in the entire composition range by plasma assisted molecular beam epitaxy,” Phys. Status Solidi., A Appl. Mater. Sci.203(1), 102–105 (2006). [CrossRef]
- C. Ristoscu, C. Ghica, E. L. Papadopoulou, G. Socol, D. Gray, B. Mironov, I. N. Mihailescu, and C. Fotakis, “Modification of AlN thin films morphology and structure by temporally shaping of fs laser pulses used for deposition,” Thin Solid Films519(19), 6381–6387 (2011). [CrossRef]
- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
- C. Ristoscu, C. Ghica, E. L. Papadopoulou, G. Socol, D. Gray, B. Mironov, I. N. Mihailescu, and C. Fotakis, “Modification of AlN thin films morphology and structure by temporally shaping of fs laser pulses used for deposition,” Thin Solid Films519(19), 6381–6387 (2011). [CrossRef]
- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- J. Wu, W. Walukiewicz, K. M. Yu, J. W. Ager, E. E. Haller, H. Lu, and W. J. Schaff, “Small band gap bowing in In1−xGaxN alloys,” Appl. Phys. Lett.80(25), 4741–4743 (2002). [CrossRef]
- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- A. G. Bhuiyan, A. Hashimoto, and A. Yamamoto, “Indium nitride (InN): A review on growth, characterization, and properties,” J. Appl. Phys.94(5), 2779–2808 (2003). [CrossRef]
- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- H. Parala, A. Devi, F. Hipler, E. Maile, A. Birkner, H. W. Becker, and R. A. Fischer, “Investigations on InN whiskers grown by chemical vapour deposition,” J. Cryst. Growth231(1), 68–74 (2001). [CrossRef]
- I. Ho and G. B. Stringfellow, “Solid phase immiscibility in GaInN,” Appl. Phys. Lett.69(18), 2701–2703 (1996). [CrossRef]
- J. Ohta, H. Fujioka, T. Honke, and M. Oshima, “Epitaxial growth of InN on c-plane sapphire by pulsed laser deposition with r.f. nitrogen radical source,” Thin Solid Films457(1), 109–113 (2004). [CrossRef]
- O. Jani, I. Ferguson, C. Honsberg, and S. Kurtz, “Design and characterization of GaN/InGaN solar cells,” Appl. Phys. Lett.91(13), 132117 (2007). [CrossRef]
- K. C. Shen, D. S. Wuu, C. C. Shen, S. L. Ou, and R. H. Horng, “Surface Modification on Wet-etched Patterned Sapphire Substrates using Plasma Treatments for Improved GaN Crystal Quality and LED Performance,” J. Electrochem. Soc.158(10), H988–H993 (2011). [CrossRef]
- J. R. Lang, C. J. Neufeld, C. A. Hurni, S. C. Cruz, E. Matioli, U. K. Mishra, and J. S. Speck, “High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH3-based molecular beam epitaxy,” Appl. Phys. Lett.98(13), 131115 (2011). [CrossRef]
- R. D. Vispute, V. Talyansky, R. P. Sharma, S. Choopun, M. Downes, T. Venkatesan, K. A. Jones, A. A. Iliadis, M. A. Khan, and J. W. Yang, “Growth of epitaxial GaN films by pulsed laser deposition,” Appl. Phys. Lett.71(1), 102–104 (1997). [CrossRef]
- E. Iliopoulos, A. Georgakilas, E. Dimakis, A. Adikimenakis, K. Tsagaraki, M. Androulidaki, and N. T. Pelekanos, “InGaN (0001) alloys grown in the entire composition range by plasma assisted molecular beam epitaxy,” Phys. Status Solidi., A Appl. Mater. Sci.203(1), 102–105 (2006). [CrossRef]
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- O. Jani, I. Ferguson, C. Honsberg, and S. Kurtz, “Design and characterization of GaN/InGaN solar cells,” Appl. Phys. Lett.91(13), 132117 (2007). [CrossRef]
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- B. N. Pantha, J. Li, J. Y. Lin, and H. X. Jiang, “Single phase InxGa1−xN (0.25 ≤ x ≤ 0.63) alloys synthesized by metal organic chemical vapor deposition,” Appl. Phys. Lett.93(18), 182107 (2008). [CrossRef]
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- J. R. Lang, C. J. Neufeld, C. A. Hurni, S. C. Cruz, E. Matioli, U. K. Mishra, and J. S. Speck, “High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH3-based molecular beam epitaxy,” Appl. Phys. Lett.98(13), 131115 (2011). [CrossRef]
- P. Sanguino, M. Niehus, L. V. Melo, R. Schwarz, S. Koynov, T. Monteiro, J. Soares, H. Alves, and B. K. Meyer, “Characterisation of GaN films grown on sapphire by low-temperature cyclic pulsed laser deposition/nitrogen rf plasma,” Solid-State Electron.47(3), 559–563 (2003). [CrossRef]
- P. Sanguino, M. Niehus, L. V. Melo, R. Schwarz, S. Koynov, T. Monteiro, J. Soares, H. Alves, and B. K. Meyer, “Characterisation of GaN films grown on sapphire by low-temperature cyclic pulsed laser deposition/nitrogen rf plasma,” Solid-State Electron.47(3), 559–563 (2003). [CrossRef]
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- C. Ristoscu, C. Ghica, E. L. Papadopoulou, G. Socol, D. Gray, B. Mironov, I. N. Mihailescu, and C. Fotakis, “Modification of AlN thin films morphology and structure by temporally shaping of fs laser pulses used for deposition,” Thin Solid Films519(19), 6381–6387 (2011). [CrossRef]
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- J. R. Lang, C. J. Neufeld, C. A. Hurni, S. C. Cruz, E. Matioli, U. K. Mishra, and J. S. Speck, “High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH3-based molecular beam epitaxy,” Appl. Phys. Lett.98(13), 131115 (2011). [CrossRef]
- P. Sanguino, M. Niehus, L. V. Melo, R. Schwarz, S. Koynov, T. Monteiro, J. Soares, H. Alves, and B. K. Meyer, “Characterisation of GaN films grown on sapphire by low-temperature cyclic pulsed laser deposition/nitrogen rf plasma,” Solid-State Electron.47(3), 559–563 (2003). [CrossRef]
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- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
- E. Matioli, C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, S. Nakamura, J. Speck, and C. Weisbuch, “High internal and external quantum efficiency InGaN/GaN solar cells,” Appl. Phys. Lett.98(2), 021102 (2011). [CrossRef]
- C. C. Chuo, C. M. Lee, T. E. Nee, and J. I. Chyi, “Effects of thermal annealing on the luminescence and structural properties of high indium-content InGaN/GaN quantum wells,” Appl. Phys. Lett.76(26), 3902–3904 (2000). [CrossRef]
- E. Matioli, C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, S. Nakamura, J. Speck, and C. Weisbuch, “High internal and external quantum efficiency InGaN/GaN solar cells,” Appl. Phys. Lett.98(2), 021102 (2011). [CrossRef]
- J. R. Lang, C. J. Neufeld, C. A. Hurni, S. C. Cruz, E. Matioli, U. K. Mishra, and J. S. Speck, “High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH3-based molecular beam epitaxy,” Appl. Phys. Lett.98(13), 131115 (2011). [CrossRef]
- P. Sanguino, M. Niehus, L. V. Melo, R. Schwarz, S. Koynov, T. Monteiro, J. Soares, H. Alves, and B. K. Meyer, “Characterisation of GaN films grown on sapphire by low-temperature cyclic pulsed laser deposition/nitrogen rf plasma,” Solid-State Electron.47(3), 559–563 (2003). [CrossRef]
- A. Kobayashi, J. Ohta, and H. Fujioka, “Characteristics of InGaN with High In Concentrations Grown on ZnO at Low Temperatures,” Jpn. J. Appl. Phys.45(24), L611–L613 (2006). [CrossRef]
- J. Ohta, H. Fujioka, T. Honke, and M. Oshima, “Epitaxial growth of InN on c-plane sapphire by pulsed laser deposition with r.f. nitrogen radical source,” Thin Solid Films457(1), 109–113 (2004). [CrossRef]
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- K. C. Shen, D. S. Wuu, C. C. Shen, S. L. Ou, and R. H. Horng, “Surface Modification on Wet-etched Patterned Sapphire Substrates using Plasma Treatments for Improved GaN Crystal Quality and LED Performance,” J. Electrochem. Soc.158(10), H988–H993 (2011). [CrossRef]
- B. N. Pantha, J. Li, J. Y. Lin, and H. X. Jiang, “Single phase InxGa1−xN (0.25 ≤ x ≤ 0.63) alloys synthesized by metal organic chemical vapor deposition,” Appl. Phys. Lett.93(18), 182107 (2008). [CrossRef]
- C. Ristoscu, C. Ghica, E. L. Papadopoulou, G. Socol, D. Gray, B. Mironov, I. N. Mihailescu, and C. Fotakis, “Modification of AlN thin films morphology and structure by temporally shaping of fs laser pulses used for deposition,” Thin Solid Films519(19), 6381–6387 (2011). [CrossRef]
- H. Parala, A. Devi, F. Hipler, E. Maile, A. Birkner, H. W. Becker, and R. A. Fischer, “Investigations on InN whiskers grown by chemical vapour deposition,” J. Cryst. Growth231(1), 68–74 (2001). [CrossRef]
- E. Iliopoulos, A. Georgakilas, E. Dimakis, A. Adikimenakis, K. Tsagaraki, M. Androulidaki, and N. T. Pelekanos, “InGaN (0001) alloys grown in the entire composition range by plasma assisted molecular beam epitaxy,” Phys. Status Solidi., A Appl. Mater. Sci.203(1), 102–105 (2006). [CrossRef]
- C. Ristoscu, C. Ghica, E. L. Papadopoulou, G. Socol, D. Gray, B. Mironov, I. N. Mihailescu, and C. Fotakis, “Modification of AlN thin films morphology and structure by temporally shaping of fs laser pulses used for deposition,” Thin Solid Films519(19), 6381–6387 (2011). [CrossRef]
- P. Sanguino, M. Niehus, L. V. Melo, R. Schwarz, S. Koynov, T. Monteiro, J. Soares, H. Alves, and B. K. Meyer, “Characterisation of GaN films grown on sapphire by low-temperature cyclic pulsed laser deposition/nitrogen rf plasma,” Solid-State Electron.47(3), 559–563 (2003). [CrossRef]
- J. Wu, W. Walukiewicz, K. M. Yu, J. W. Ager, E. E. Haller, H. Lu, and W. J. Schaff, “Small band gap bowing in In1−xGaxN alloys,” Appl. Phys. Lett.80(25), 4741–4743 (2002). [CrossRef]
- P. Sanguino, M. Niehus, L. V. Melo, R. Schwarz, S. Koynov, T. Monteiro, J. Soares, H. Alves, and B. K. Meyer, “Characterisation of GaN films grown on sapphire by low-temperature cyclic pulsed laser deposition/nitrogen rf plasma,” Solid-State Electron.47(3), 559–563 (2003). [CrossRef]
- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
- V. Yu. Davydov, A. A. Klochikhin, R. P. Seisyan, V. V. Emtsev, S. V. Ivanov, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, J. Aderhold, O. Semchinova, and J. Graul, “Absorption and Emission of Hexagonal InN. Evidence of Narrow Fundamental Band Gap,” Phys. Status Solidi B229(3), R1–R3 (2002). [CrossRef]
- R. D. Vispute, V. Talyansky, R. P. Sharma, S. Choopun, M. Downes, T. Venkatesan, K. A. Jones, A. A. Iliadis, M. A. Khan, and J. W. Yang, “Growth of epitaxial GaN films by pulsed laser deposition,” Appl. Phys. Lett.71(1), 102–104 (1997). [CrossRef]
- K. C. Shen, D. S. Wuu, C. C. Shen, S. L. Ou, and R. H. Horng, “Surface Modification on Wet-etched Patterned Sapphire Substrates using Plasma Treatments for Improved GaN Crystal Quality and LED Performance,” J. Electrochem. Soc.158(10), H988–H993 (2011). [CrossRef]
- K. C. Shen, D. S. Wuu, C. C. Shen, S. L. Ou, and R. H. Horng, “Surface Modification on Wet-etched Patterned Sapphire Substrates using Plasma Treatments for Improved GaN Crystal Quality and LED Performance,” J. Electrochem. Soc.158(10), H988–H993 (2011). [CrossRef]
- P. Sanguino, M. Niehus, L. V. Melo, R. Schwarz, S. Koynov, T. Monteiro, J. Soares, H. Alves, and B. K. Meyer, “Characterisation of GaN films grown on sapphire by low-temperature cyclic pulsed laser deposition/nitrogen rf plasma,” Solid-State Electron.47(3), 559–563 (2003). [CrossRef]
- C. Ristoscu, C. Ghica, E. L. Papadopoulou, G. Socol, D. Gray, B. Mironov, I. N. Mihailescu, and C. Fotakis, “Modification of AlN thin films morphology and structure by temporally shaping of fs laser pulses used for deposition,” Thin Solid Films519(19), 6381–6387 (2011). [CrossRef]
- E. Matioli, C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, S. Nakamura, J. Speck, and C. Weisbuch, “High internal and external quantum efficiency InGaN/GaN solar cells,” Appl. Phys. Lett.98(2), 021102 (2011). [CrossRef]
- J. R. Lang, C. J. Neufeld, C. A. Hurni, S. C. Cruz, E. Matioli, U. K. Mishra, and J. S. Speck, “High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH3-based molecular beam epitaxy,” Appl. Phys. Lett.98(13), 131115 (2011). [CrossRef]
- I. Ho and G. B. Stringfellow, “Solid phase immiscibility in GaInN,” Appl. Phys. Lett.69(18), 2701–2703 (1996). [CrossRef]
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- E. Iliopoulos, A. Georgakilas, E. Dimakis, A. Adikimenakis, K. Tsagaraki, M. Androulidaki, and N. T. Pelekanos, “InGaN (0001) alloys grown in the entire composition range by plasma assisted molecular beam epitaxy,” Phys. Status Solidi., A Appl. Mater. Sci.203(1), 102–105 (2006). [CrossRef]
- V. Y. Davydov, A. A. Klochikhin, V. V. Emtsev, S. V. Ivanov, V. V. Vekshin, F. Bechstedt, J. Furthmuller, H. Harima, A. V. Mudryi, A. Hashimoto, A. Yamamoto, J. Aderhold, J. Graul, and E. E. Haller, “Band Gap of InN and In-Rich InxGa1-xN alloys (0.36 < x < 1),” Phys. Status Solidi, B Basic Res.230(2), R4–R6 (2002). [CrossRef]
- R. D. Vispute, V. Talyansky, R. P. Sharma, S. Choopun, M. Downes, T. Venkatesan, K. A. Jones, A. A. Iliadis, M. A. Khan, and J. W. Yang, “Growth of epitaxial GaN films by pulsed laser deposition,” Appl. Phys. Lett.71(1), 102–104 (1997). [CrossRef]
- R. D. Vispute, V. Talyansky, R. P. Sharma, S. Choopun, M. Downes, T. Venkatesan, K. A. Jones, A. A. Iliadis, M. A. Khan, and J. W. Yang, “Growth of epitaxial GaN films by pulsed laser deposition,” Appl. Phys. Lett.71(1), 102–104 (1997). [CrossRef]
- J. Wu, W. Walukiewicz, K. M. Yu, J. W. Ager, E. E. Haller, H. Lu, and W. J. Schaff, “Small band gap bowing in In1−xGaxN alloys,” Appl. Phys. Lett.80(25), 4741–4743 (2002). [CrossRef]
- E. Matioli, C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, S. Nakamura, J. Speck, and C. Weisbuch, “High internal and external quantum efficiency InGaN/GaN solar cells,” Appl. Phys. Lett.98(2), 021102 (2011). [CrossRef]
- J. Wu, W. Walukiewicz, K. M. Yu, J. W. Ager, E. E. Haller, H. Lu, and W. J. Schaff, “Small band gap bowing in In1−xGaxN alloys,” Appl. Phys. Lett.80(25), 4741–4743 (2002). [CrossRef]
- K. C. Shen, D. S. Wuu, C. C. Shen, S. L. Ou, and R. H. Horng, “Surface Modification on Wet-etched Patterned Sapphire Substrates using Plasma Treatments for Improved GaN Crystal Quality and LED Performance,” J. Electrochem. Soc.158(10), H988–H993 (2011). [CrossRef]
- A. G. Bhuiyan, A. Hashimoto, and A. Yamamoto, “Indium nitride (InN): A review on growth, characterization, and properties,” J. Appl. Phys.94(5), 2779–2808 (2003). [CrossRef]
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- R. D. Vispute, V. Talyansky, R. P. Sharma, S. Choopun, M. Downes, T. Venkatesan, K. A. Jones, A. A. Iliadis, M. A. Khan, and J. W. Yang, “Growth of epitaxial GaN films by pulsed laser deposition,” Appl. Phys. Lett.71(1), 102–104 (1997). [CrossRef]
- J. Wu, W. Walukiewicz, K. M. Yu, J. W. Ager, E. E. Haller, H. Lu, and W. J. Schaff, “Small band gap bowing in In1−xGaxN alloys,” Appl. Phys. Lett.80(25), 4741–4743 (2002). [CrossRef]
Appl. Phys. Lett.
- O. Jani, I. Ferguson, C. Honsberg, and S. Kurtz, “Design and characterization of GaN/InGaN solar cells,” Appl. Phys. Lett.91(13), 132117 (2007). [CrossRef]
- J. R. Lang, C. J. Neufeld, C. A. Hurni, S. C. Cruz, E. Matioli, U. K. Mishra, and J. S. Speck, “High external quantum efficiency and fill-factor InGaN/GaN heterojunction solar cells grown by NH3-based molecular beam epitaxy,” Appl. Phys. Lett.98(13), 131115 (2011). [CrossRef]
- E. Matioli, C. Neufeld, M. Iza, S. C. Cruz, A. A. Al-Heji, X. Chen, R. M. Farrell, S. Keller, S. DenBaars, U. Mishra, S. Nakamura, J. Speck, and C. Weisbuch, “High internal and external quantum efficiency InGaN/GaN solar cells,” Appl. Phys. Lett.98(2), 021102 (2011). [CrossRef]
- C. C. Chuo, C. M. Lee, T. E. Nee, and J. I. Chyi, “Effects of thermal annealing on the luminescence and structural properties of high indium-content InGaN/GaN quantum wells,” Appl. Phys. Lett.76(26), 3902–3904 (2000). [CrossRef]
- B. N. Pantha, J. Li, J. Y. Lin, and H. X. Jiang, “Single phase InxGa1−xN (0.25 ≤ x ≤ 0.63) alloys synthesized by metal organic chemical vapor deposition,” Appl. Phys. Lett.93(18), 182107 (2008). [CrossRef]
- R. D. Vispute, V. Talyansky, R. P. Sharma, S. Choopun, M. Downes, T. Venkatesan, K. A. Jones, A. A. Iliadis, M. A. Khan, and J. W. Yang, “Growth of epitaxial GaN films by pulsed laser deposition,” Appl. Phys. Lett.71(1), 102–104 (1997). [CrossRef]
- J. Wu, W. Walukiewicz, K. M. Yu, J. W. Ager, E. E. Haller, H. Lu, and W. J. Schaff, “Small band gap bowing in In1−xGaxN alloys,” Appl. Phys. Lett.80(25), 4741–4743 (2002). [CrossRef]
- I. Ho and G. B. Stringfellow, “Solid phase immiscibility in GaInN,” Appl. Phys. Lett.69(18), 2701–2703 (1996). [CrossRef]
J. Appl. Phys.
- A. G. Bhuiyan, A. Hashimoto, and A. Yamamoto, “Indium nitride (InN): A review on growth, characterization, and properties,” J. Appl. Phys.94(5), 2779–2808 (2003). [CrossRef]
J. Cryst. Growth
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J. Electrochem. Soc.
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