Table of Contents Author Guidelines Submit a Manuscript
Journal of Nanomaterials
Volume 2010, Article ID 746520, 4 pages
http://dx.doi.org/10.1155/2010/746520
Research Article

The Excited Electronic States Calculated for Quantum Dots Grown by the Sol-Gel Technique

1Unité de Physique Quantique, Faculté des Sciences, Avenue de l’Environnement, Monastir 5000, Tunisia
2Laboratoire de Physique des Semi-conducteurs et des Composants Electroniques, Faculté des Sciences, Avenue de l’Environnement, Monastir 5000, Tunisia
3Laboratoire d’Electronique et de Microélectronique, Faculté des Sciences, Avenue de l’Environnement, Monastir 5000, Tunisia
4Unité de Recherche de Mathématiques Appliquées et Physique Mathématiques, Ecole Préparatoire aux Académies Militaires, Avenue Maréchal Tito, Sousse 4029, Tunisia

Received 10 October 2009; Revised 9 January 2010; Accepted 26 February 2010

Academic Editor: Kui Yu

Copyright © 2010 A. Sakly et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. B. Bhattacharjee, S. K. Mandal, K. Chakrabarti, D. Ganguli, and S. Chaudhuri, “Optical properties of Cd1xZnxS nanocrystallites in sol-gel silica matrix,” Journal of Physics D, vol. 35, no. 20, pp. 2636–2642, 2002. View at Publisher · View at Google Scholar · View at Scopus
  2. K. K. Nanda, S. N. Sarangi, S. Mohanty, and S. N. Sahu, “Optical properties of CdS nanocrystalline films prepared by a precipitation technique,” Thin Solid Films, vol. 322, no. 1-2, pp. 21–27, 1998. View at Google Scholar · View at Scopus
  3. H. Yükselici, P. D. Persans, and T. M. Hayes, “Optical studies of the growth of Cd1xZnxS nanocrystals in borosilicate glass,” Physical Review B, vol. 52, no. 16, pp. 11763–11772, 1995. View at Publisher · View at Google Scholar · View at Scopus
  4. Y. Kayanuma, “Quantum-size effects of interacting electrons and holes in semiconductor microcrystals with spherical shape,” Physical Review B, vol. 38, no. 14, pp. 9797–9805, 1988. View at Publisher · View at Google Scholar · View at Scopus
  5. N. Safta, A. Sakly, H. Mejri, and Y. Bouazra, “Electronic and optical properties of Cd1xZnxS nanocrystals,” European Physical Journal B, vol. 51, no. 1, pp. 75–78, 2006. View at Publisher · View at Google Scholar · View at Scopus
  6. N. Safta, A. Sakly, H. Mejri, and M. A. Zaïdi, “Electronic properties of multi-quantum dot structures in Cd1xZnxS alloy semiconductors,” European Physical Journal B, vol. 53, no. 1, pp. 35–38, 2006. View at Publisher · View at Google Scholar · View at Scopus
  7. V. Alberts, R. Herberholz, T. Walter, and H. W. Schock, “Device characteristics of In-rich CuInSe2-based solar cells,” Journal of Physics D, vol. 30, no. 15, pp. 2156–2162, 1997. View at Google Scholar · View at Scopus
  8. N. Kohara, T. Negami, M. Nishitani, and T. Wada, “Preparation of device-quality Cu(In, Ga)Se2 thin films deposited by coevaporation with composition monitor,” Japanese Journal of Applied Physics, vol. 34, no. 9, pp. L1141–L1144, 1995. View at Google Scholar
  9. H. L. Kwok, “A study of ultra-thin CuxS-CdyZn1-yS polycrystalline solar cells,” Journal of Physics D, vol. 16, no. 12, pp. 2367–2377, 1983. View at Google Scholar · View at Scopus
  10. H. S. Kim, H. B. Im, and J. T. Moon, “Effects of cell width on the photovoltaic properties of sintered Cd1xZnxS/CdTe solar cells,” Thin Solid Films, vol. 214, no. 2, pp. 207–212, 1992. View at Google Scholar · View at Scopus
  11. G. Gordillo, “Photoluminescence and photoconductivity studies on Cd1xZnxS thin films,” Solar Energy Materials and Solar Cells, vol. 25, no. 1-2, pp. 41–49, 1992. View at Google Scholar · View at Scopus
  12. J. W. Bowron, S. D. Damaskinos, and A. E. Dixon, “Characterization of the anomalous second junction in Mo/CuInSe2/(CdZn)S/ITO solar cells,” Solar Cells, vol. 31, no. 2, pp. 159–169, 1991. View at Google Scholar · View at Scopus
  13. O. M. Hussain, P. S. Reddy, B. S. Naidu, S. Uthanna, and P. J. Reddy, “Characterization of thin film ZnCdS/CdTe solar cells,” Semiconductor Science and Technology, vol. 6, no. 7, pp. 690–694, 1991. View at Publisher · View at Google Scholar · View at Scopus
  14. T. L. Chu, S. S. Chu, J. Britt, C. Ferekides, and C. Q. Wu, “Cadmium zinc sulfide films and heterojunctions,” Journal of Applied Physics, vol. 70, no. 5, pp. 2688–2693, 1991. View at Publisher · View at Google Scholar · View at Scopus
  15. H. H. Gürel, Ö. Akinci, and H. Ünlü, “Tight binding modeling of CdSe/ZnS and CdZnS/CdS II-VI heterostructures for solar cells: role of d-orbitals,” Thin Solid Films, vol. 516, no. 20, pp. 7098–7104, 2008. View at Publisher · View at Google Scholar · View at Scopus
  16. M. Gunasekaran and M. Ichimura, “Photovoltaic cells based on pulsed electrochemically deposited SnS and photochemically deposited CdS and Cd1xZnxS,” Solar Energy Materials and Solar Cells, vol. 91, no. 9, pp. 774–778, 2007. View at Publisher · View at Google Scholar · View at Scopus
  17. L. Cao, S. Huang, and E. Shulin, “ZnS/CdS/ZnS quantum dot quantum well produced in inverted micelles,” Journal of Colloid and Interface Science, vol. 273, no. 2, pp. 478–482, 2004. View at Publisher · View at Google Scholar · View at Scopus
  18. H. Kumano, A. Ueta, and I. Suemune, “Modified spontaneous emission properties of CdS quantum dots embedded in novel three-dimensional microcavities,” Physica E, vol. 13, no. 2–4, pp. 441–445, 2002. View at Publisher · View at Google Scholar · View at Scopus
  19. Y. C. Zhang, W. W. Chen, and X. Ya Hu, “In air synthesis of hexagonal Cd1xZnxS nanoparticles from single-source molecular precursors,” Materials Letters, vol. 61, no. 26, pp. 4847–4850, 2007. View at Publisher · View at Google Scholar · View at Scopus
  20. K. Tomihira, D. Kim, and M. Nakayama, “Optical properties of ZnS-CdS alloy quantum dots prepared by a colloidal method,” Journal of Luminescence, vol. 112, no. 1, pp. 131–135, 2005. View at Publisher · View at Google Scholar · View at Scopus
  21. J. Ouyang, M. Vincent, D. Kingston et al., “Noninjection, one-pot synthesis of photoluminescent colloidal homogeneously alloyed CdSeS quantum dots,” Journal of Physical Chemistry C, vol. 113, no. 13, pp. 5193–5200, 2009. View at Publisher · View at Google Scholar · View at Scopus
  22. K. K. Nanda, S. N. Sarangi, S. Mohanty, and S. N. Sahu, “Optical properties of CdS nanocrystalline films prepared by a precipitation technique,” Thin Solid Films, vol. 322, no. 1-2, pp. 21–27, 1998. View at Google Scholar · View at Scopus
  23. Q. Pang, B. C. Guo, C. L. Yang et al., “Cd1-xMnxS quantum dots: new synthesis and characterization,” Journal of Crystal Growth, vol. 269, no. 2–4, pp. 213–217, 2004. View at Publisher · View at Google Scholar · View at Scopus
  24. M. C. Klein, F. Hache, D. Ricard, and C. Flytzanis, “Size dependence of electron-phonon coupling in semiconductor nanospheres: the case of CdSe,” Physical Review B, vol. 42, no. 17, pp. 11123–11132, 1990. View at Publisher · View at Google Scholar · View at Scopus
  25. H. Yükselici, P. D. Persans, and T. M. Hayes, “Optical studies of the growth of Cd1xZnxS nanocrystals in borosilicate glass,” Physical Review B, vol. 52, no. 16, pp. 11763–11772, 1995. View at Publisher · View at Google Scholar · View at Scopus
  26. W. Ekardt, K. Lösch, and D. Bimberg, “Determination of the analytical and the nonanalytical part of the exchange interaction of InP and GaAs from polariton spectra in intermediate magnetic fields,” Physical Review B, vol. 20, no. 8, pp. 3303–3314, 1979. View at Publisher · View at Google Scholar · View at Scopus