OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 6 — Mar. 17, 2008
  • pp: 3515–3526

Onion-like (CdSe)ZnS/CdSe/ZnS quantum-dot-quantum-well heteronanocrystals for investigation of multi-color emission

Sedat Nizamoglu and Hilmi Volkan Demir  »View Author Affiliations

Optics Express, Vol. 16, Issue 6, pp. 3515-3526 (2008)

View Full Text Article

Enhanced HTML    Acrobat PDF (201 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We investigate multi-color spontaneous emission from quantum-dot-quantum-well heteronanocrystals made of onion-like (CdSe)ZnS/CdSe/ZnS (core)shell/shell/shell structures, with our theoretical results explaining experimental measurements for the first time. In such multi-layered heteronanocrystals, we discover that the carrier localization is tuned from type-1-like to type-2-like localization by controlling CdSe and ZnS shell thicknesses, and that 3-monolayer ZnS barriers are not necessarily sufficient for carrier localization, unlike in conventional (CdSe)ZnS (core)shell structures. We demonstrate that exciton localization in distinct layers of (CdSe)ZnS/CdSe/ZnS heteronanocrystals with high transition probability (for n=1 states in CdSe core and n=2 states in CdSe shell) is key to their multi-color emission.

© 2008 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(250.0250) Optoelectronics : Optoelectronics
(260.3800) Physical optics : Luminescence

ToC Category:

Original Manuscript: January 30, 2008
Revised Manuscript: February 27, 2008
Manuscript Accepted: February 28, 2008
Published: March 3, 2008

Sedat Nizamoglu and Hilmi Volkan Demir, "Onion-like (CdSe)ZnS/CdSe/ZnS quantum-dot-quantum-well heteronanocrystals for investigation of multi-color emission," Opt. Express 16, 3515-3526 (2008)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. A. P. Alivisatos, "Semiconductor Clusters, Nanocrystals, and Quantum Dots," Science 271, 933-937 (1996). [CrossRef]
  2. R. D. Schaller, J. M. Pietryga, S. V. Goupalov, M. A. Petruska, S. A. Ivanov, and V. I. Klimov, "Breaking the phonon bottleneck in semiconductor nanocrystals via multiphonon emission induced by intrinsic nonadiabatic interactions," Phys. Rev. Lett. 95, 196401 (2005). [CrossRef] [PubMed]
  3. M. Achermann, M. A. Petruska, S. Kos, D. L. Smith, D. D. Koleske, and V. I. Klimov, "Energy- transfer pumping of semiconductor nanocrystals using an epitaxial quantum well," Nature 429, 642-646 (2004). [CrossRef] [PubMed]
  4. S. Nizamoglu, T. Ozel, E. Sari, and H. V. Demir, "White light generation using CdSe/ZnS core-shell nanocrystals hybridized with InGaN/GaN light emitting diodes," Nanotechnology 18, 065709 (2007). [CrossRef]
  5. E. Mutlugun, I. M. Soganci, and H. V. Demir, "Nanocrystal hybridized scintillators for enhanced detection and imaging on Si platforms in UV," Opt. Express 15, 1128-1134 (2007). [CrossRef] [PubMed]
  6. H. V. Demir, S. Nizamoglu, T. Ozel, E. Mutlugun, I. O. Huyal, E. Sari, E. Holder, and N. Tian, "White light generation tuned by dual hybridization of nanocrystals and conjugated polymers," New J. Phys. 9, 362 (2007). [CrossRef]
  7. S. Nizamoglu, G. Zengin, and H. V. Demir, "Color-converting combinations of nanocrystal emitters for warm-white light generation with high color rendering index" Appl. Phys. Lett. 92, 031102 (2008). [CrossRef]
  8. H. Chen, D. Yeh, C. Lu, C. Huang, W. Shiao, J. Huang, C. C. Yang, I. Liu, and W. Su, "White light generation with CdSe-ZnS nanocrystals coated on an InGaN-GaN quantum-well blue/green two-wavelength light-emitting diode," IEEE Photon. Technol. Lett. 18, 1430-1432 (2006). [CrossRef]
  9. H. Chen, C. Hsu, and H. Hong, "InGaN-CdSe-ZnSe quantum dots white LEDs," IEEE Photon. Technol. Lett. 18, 193-195 (2006). [CrossRef]
  10. M. Ali, S. Chattopadhyay, A. Nag, A. Kumar, S. Sapra, S. Chakraborty, and D. D. Sarma, "White-light emission from a blend of CdSeS nanocrystals of different Se:S ratio," Nanotechnology 18, 075401 (2007). [CrossRef] [PubMed]
  11. S. Nizamoglu and H. V. Demir, "Nanocrystal based hybrid white light generation with tunable color parameters," J. Opt. A: Pure Appl. Opt. 9, S419-S424 (2007). [CrossRef]
  12. S. Nizamoglu and H. V. Demir, "Hybrid white light sources based on layer-by-layer assembly of nanocrystals on near-UV emitting diodes," Nanotechnology 18, 405702 (2007). [CrossRef]
  13. I. M. Soganci, S. Nizamoglu, E. Mutlugun, O. Akin, and H. V. Demir, "Localized plasmon-engineered spontaneous emission of CdSe/ZnS nanocrystals closely-packed in the proximity of Ag nanoisland films for controlling emission linewidth, peak, and intensity," Opt. Express. 15, 14289-14298 (2007). [CrossRef] [PubMed]
  14. B. O. Dabbousi, J. Rodriguez-Viejo, F. V. Mikulec, J. R. Heine, H. Mattoussi, R. Ober, K. F. Jensen, and M. G. Bawendi, "(CdSe)ZnS core-shell quantum dots: synthesis and characterization of a size series of highly luminescent nanocrystallites," J. Phys. Chem. B 101, 9463-9475 (1997). [CrossRef]
  15. X. G. Peng, M. C. Schlamp, A. V. Kadavanich, and A. P. Alivisatos, "Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic Accessibility," J. Am. Chem. Soc. 119, 7019 (1997). [CrossRef]
  16. D. Dorfs and A. Eychmüller, "Multishell Semiconductor Nanocrystals," Z. Phys. Chem. 220, 1539 (2006). [CrossRef]
  17. A. Eychmüller, A. Mews, and H. Weller, "A Quantum Dot Quantum Well: CdS/HgS/CdS," Chem. Phys. Lett. 208, 59 (1993). [CrossRef]
  18. D. Battaglia, J. J. Li, Y. Wang, and X. Peng, "Colloidal two-dimensional systems: CdSe quantum shells and wells," Angew. Chem. Int. Ed. 42, 5035-5039 (2003). [CrossRef]
  19. R. B. Little, M. A. El-Sayed, G. W. Bryant, and S. J. Burke, "Formation of quantum-dot quantum-well heteronanostructures with large latticemismatch: ZnS/CdS/ZnS," Chem. Phys. 114, 1813 (2001).
  20. S. A. Ivanov, J. Nanda, A. Piryatinski, M. Achermann, L. P. Balet, I. V. Bezel, P. O. Anikeeva, S. Tretiak, and V. I. Klimov, "Light Amplification Using Inverted Core/Shell Nanocrystals: Towards Lasing in the Single-Exciton Regime," J. Phys. Chem. B 108, 10625 (2004). [CrossRef]
  21. X. Zhong, R. Xiea, Y. Zhang, T. Basché, and W. Knoll, "High-Quality Violet- to Red-Emitting ZnSe/CdSe Core/Shell Nanocrystals," Chem. Mater. (Communication) 17, 4038-4042 (2005). [CrossRef]
  22. J. Schrier and L. Wang, "Electronic structure of nanocrystal quantum-dot quantum wells," Phys. Rev. Lett. B 73, 245332 (2006).
  23. D. Battaglia, B. Blackman, and X. Peng, "Coupled and Decoupled Dual Quantum Systems in One Semiconductor Nanocrystal," J. Am. Chem. Soc. 127, 10889 (2005). [CrossRef] [PubMed]
  24. S. Sapra, S. Mayilo, T. A. Klar, A. L. Rogach, and J. Feldmann, "Bright white light emission from semiconductor nanocrystals: by chance and by design," Adv. Mater. 19, 569 (2007). [CrossRef]
  25. F. Koberling, U. Kolb, G. Philipp, I. Potapova, T. Basche, and A. Mews, "Fluorescence Anisotropy and Crystal Structure of Individual Semiconductor Nanocrystals," J. Phys. Chem. B 107, 7463-7471 (2003). [CrossRef]
  26. M. G. Burt, "The justification for applying the effective-mass approximation to microstructures," J. Phys. Condens. Matter 4, 6651 (1992). [CrossRef]
  27. D. Dorfs, H. Henschel, J. Kolny, and A. Eychmuller, "Multilayered Nanoheterostructures: Theory and Experiment," J. Phys. Chem. B 108, 1578 (2004). [CrossRef]
  28. V. I. Klimov, S. A. Ivanov, J. Nanda, M. Achermann, I. Bezel, J. A. McGuire, and A.Piryatinski, "Single-exciton optical gain in semiconductor nanocrystals," Nature 447, 441 (2007). [CrossRef] [PubMed]
  29. L. P. Balet, S. A. Ivanov, A. Piryatinski, M. Achermann, and V. I. Klimov, "Inverted core/shell nanocrystals continuously tunable between Type-I and Type-II localization regimes," Nano Lett. 4, 1485 (2004). [CrossRef]
  30. D. Schoss, A. Mews, A. Eychmüller, and H. Weller, "The Quantum Dot Quantum Well CdS/HgS/CdS: Theory and Experiment," Phys. Rev. B 49, 24 (1994). [CrossRef]
  31. K. Chang and J. Xia, "Spatially separated excitons in quantum-dot quantum well structures," Phys. Rev. B 57, 16 (1998). [CrossRef]
  32. U. Hotje, C. Rose, and M. Binnewies, "Lattice constants and molar volumes in the system ZnS, ZnSe, CdS, CdSe," Solid State Sci. 5, 1259 (2003). [CrossRef]
  33. S. Q. Wang, "First-principles study of the anisotropic thermal expansion of wurtzite ZnS," Appl. Phys. Lett 88, 061902 (2006). [CrossRef]
  34. D. V. Talapin, A. L. Rogach, A. Kornowski, M. Haase, and H. Weller "Highly Luminescent Monodisperse CdSe and CdSe/ZnS Nanocrystals Synthesized in a Hexadecylamine - Trioctylphosphine Oxide - Trioctylphospine Mixture," Nano Lett. 1, 207-211 (2001). [CrossRef]
  35. S. V. Gaponenko, "Optical properties of semiconductor nanocrystals" (Cambridge University Press, 1998)
  36. V. I. Klimov (ed.), "Semiconductor and metal nanocrystals: Synthesis and electronic and optical properties" (Marcel Dekker, 2003).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited