Table of Contents
ISRN Spectroscopy
Volume 2012, Article ID 894385, 8 pages
http://dx.doi.org/10.5402/2012/894385
Research Article

Time-Resolved Photoluminescence Spectroscopy Evaluation of CdTe and CdTe/CdS Quantum Dots

School of Material Science and Engineering, University of Jinan, Jinan 250022, China

Received 2 August 2012; Accepted 7 September 2012

Academic Editors: U. Pal and C. Tormena

Copyright © 2012 Zhimin Yuan 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. D. R. Larson, W. R. Zipfel, R. M. Williams et al., “Water-soluble quantum dots for multiphoton fluorescence imaging in vivo,” Science, vol. 300, no. 5624, pp. 1434–1436, 2003. View at Publisher · View at Google Scholar · View at Scopus
  2. A. P. Alivisatos, “Semiconductor clusters, nanocrystals, and quantum dots,” Science, vol. 271, no. 5251, pp. 933–937, 1996. View at Google Scholar · View at Scopus
  3. J. Liu, H. Li, W. Wang et al., “Use of ester-terminated polyamidoamine dendrimers for stabilizing quantum dots in aqueous solutions,” Small, vol. 2, no. 8-9, pp. 999–1002, 2006. View at Publisher · View at Google Scholar · View at Scopus
  4. Q. Lu, S. S. Hu, D. W. Pang, and Z. K. He, “Direct electrochemistry and electrocatalysis with hemoglobin in water-soluble quantum dots film on glassy carbon electrode,” Chemical Communications, vol. 20, no. 20, pp. 2584–2585, 2005. View at Publisher · View at Google Scholar
  5. Y. X. Xu, J. G. Liang, C. G. Hu, F. S. Wang, S. Hu, and Z. K. He, “A hydrogen peroxide biosensor based on the direct electrochemistry of hemoglobin modified with quantum dots,” Journal of Biological Inorganic Chemistry, vol. 12, no. 3, pp. 421–427, 2007. View at Publisher · View at Google Scholar
  6. C. B. Murray, D. J. Norris, and M. G. Bawendi, “Synthesis and characterization of nearly monodisperse CdE (E = S, Se, Te) semiconductor nanocrystallites,” Journal of the American Chemical Society, vol. 115, no. 19, pp. 8706–8715, 1993. View at Google Scholar · View at Scopus
  7. S. Wang, N. Mamedova, N. A. Kotov, W. Chen, and J. Studer, “Antigen/Antibody Immunocomplex from CdTe Nanoparticle Bioconjugates,” Nano Letters, vol. 2, no. 8, pp. 817–822, 2002. View at Publisher · View at Google Scholar · View at Scopus
  8. A. L. Rogach, L. Katsikas, A. Kornowski, D. Su, A. Eychmuller, and H. Weller, “Synthesis and characterization of thiol-stabilized CdTe nanocrystals,” Berichte der Bunsengesellschaft für Physikalische Chemie, vol. 100, pp. 1772–1778, 1996. View at Publisher · View at Google Scholar
  9. Y. Zhang, J. He, P. N. Wang et al., “Time-dependent photoluminescence blue shift of the quantum dots in living cells: effect of oxidation by singlet oxygen,” Journal of the American Chemical Society, vol. 128, no. 41, pp. 13396–13401, 2006. View at Publisher · View at Google Scholar · View at Scopus
  10. M. A. Hines and P. Guyot-Sionnest, “Synthesis and characterization of strongly luminescing ZnS-capped CdSe nanocrystals,” Journal of Physical Chemistry, vol. 100, no. 2, pp. 468–471, 1996. View at Google Scholar · View at Scopus
  11. B. O. Dabbousi, J. Rodriguez-Viejo, F. V. Mikulec et al., “(CdSe)ZnS core-shell quantum dots: synthesis and characterization of a size series of highly luminescent nanocrystallites,” Journal of Physical Chemistry B, vol. 101, no. 46, pp. 9463–9475, 1997. View at Google Scholar · View at Scopus
  12. M. Danek, K. F. Jensen, C. B. Murray, and M. G. Bawendi, “Synthesis of luminescent thin-film CdSe/ZnSe quantum dot composites using CdSe quantum dots passivated with an overlayer of ZnSe,” Chemistry of Materials, vol. 8, no. 1, pp. 173–180, 1996. View at Publisher · View at Google Scholar
  13. P. Reiss, J. Bleuse, and A. Pron, “Highly Luminescent CdSe/ZnSe core/shell nanocrystals of low size dispersion,” Nano Letters, vol. 2, no. 7, pp. 781–784, 2002. View at Publisher · View at Google Scholar · View at Scopus
  14. X. 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,” Journal of the American Chemical Society, vol. 119, no. 30, pp. 7019–7029, 1997. View at Publisher · View at Google Scholar · View at Scopus
  15. T. Trindade, P. O'Brien, and N. L. Pickett, “Nanocrystalline semiconductors: synthesis, properties, and perspectives,” Chemistry of Materials, vol. 13, no. 11, pp. 3843–3858, 2001. View at Publisher · View at Google Scholar · View at Scopus
  16. Y. Yu, Y. Lai, X. Zheng, J. Wu, Z. Long, and C. Liang, “Synthesis of functionalized CdTe/CdS QDs for spectrofluorimetric detection of BSA,” Spectrochimica Acta Part A, vol. 68, no. 5, pp. 1356–1361, 2007. View at Publisher · View at Google Scholar
  17. C. L. Wang, H. Zhang, J. H. Zhang, M. J. Li, H. Z. Sun, and B. Yang, “Application of ultrasonic irradiation in aqueous synthesis of highly fluorescent CdTe/CdS core-shell nanocrystals,” The Journal of Physical Chemistry C, vol. 111, no. 6, pp. 2465–2469, 2007. View at Publisher · View at Google Scholar
  18. H. Peng, L. Zhang, C. Soeller, and J. Travas-Sejdic, “Preparation of water-soluble CdTe/CdS core/shell quantum dots with enhanced photostability,” Journal of Luminescence, vol. 127, no. 2, pp. 721–726, 2007. View at Publisher · View at Google Scholar · View at Scopus
  19. Z. M. Yuan, A. Y. Zhang, Y. Q. Cao, J. Yang, Y. N. Zhu, and P. Yang, “Effect of mercaptocarboxylic acids on luminescent properties of CdTe quantum dots,” Journal of Fluorescence, vol. 22, no. 1, pp. 121–127, 2011. View at Publisher · View at Google Scholar
  20. H. Bao, Y. Gong, Z. Li, and M. Gao, “Enhancement effect of illumination on the photoluminescence of water-soluble CdTe nanocrystals: toward highly fluorescent CdTe/CdS core-shell structure,” Chemistry of Materials, vol. 16, no. 20, pp. 3853–3859, 2004. View at Publisher · View at Google Scholar · View at Scopus
  21. M. Jones, J. Nedeljkovic, R. J. Ellingson, A. J. Nozik, and G. Rumbles, “Photoenhancement of luminescence in colloidal CdSe quantum dot solutions,” Journal of Physical Chemistry B, vol. 107, no. 41, pp. 11346–11352, 2003. View at Google Scholar · View at Scopus
  22. S. Rawalekar, S. Kaniyankandy, S. Verma, and H. N. Ghosh, “Ultrafast charge carrier relaxation and charge transfer dynamics of CdTe/CdS core-shell quantum dots as studied by femtosecond transient absorption spectroscopy,” Journal of Physical Chemistry C, vol. 114, no. 3, pp. 1460–1466, 2010. View at Publisher · View at Google Scholar · View at Scopus