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International Journal of Photoenergy
Volume 2012, Article ID 857567, 5 pages
http://dx.doi.org/10.1155/2012/857567
Research Article

Layer-by-Layer CdS-Modified Film Electrodes for Enhancing the Absorption and Energy Conversion Efficiency of Solar Cells

1School of Physics and Engineering and State Key Laboratory of Optoelectronic Materials and Technologies and Institute for Solar Energy Systems, Sun Yat-sen University, Guangzhou 510275, China
2School of Chemical and Biologic Engineering, Guilin University of Technology, Guilin 541004, China
3Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou 510275, China

Received 14 November 2011; Accepted 31 January 2012

Academic Editor: Peter Rupnowski

Copyright © 2012 Ming Li 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. O'Regan and M. Grätzel, “A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films,” Nature, vol. 353, no. 6346, pp. 737–740, 1991. View at Google Scholar · View at Scopus
  2. M. Grätzel, “Photoelectrochemical cells,” Nature, vol. 414, no. 6861, pp. 338–344, 2001. View at Publisher · View at Google Scholar · View at Scopus
  3. M. Grätzel, “Solar energy conversion by dye-sensitized photovoltaic cells,” Inorganic Chemistry, vol. 44, no. 20, pp. 6841–6851, 2005. View at Publisher · View at Google Scholar · View at Scopus
  4. Y. Zhang, T. Xie, T. Jiang et al., “Surface photovoltage characterization of a ZnO nanowire array/CdS quantum dot heterogeneous film and its application for photovoltaic devices,” Nanotechnology, vol. 20, no. 15, Article ID 155707, 2009. View at Publisher · View at Google Scholar · View at Scopus
  5. K. S. Leschkies, R. Divakar, J. Basu et al., “Photosensitization of ZnO nanowires with CdSe quantum dots for photovoltaic devices,” Nano Letters, vol. 7, no. 6, pp. 1793–1798, 2007. View at Publisher · View at Google Scholar · View at Scopus
  6. C. Ratanatawanate, C. Xiong, and K. J. Balkus, “Fabrication of PbS quantum dot doped TiO2 nanotubes,” ACS Nano, vol. 2, no. 8, pp. 1682–1688, 2008. View at Publisher · View at Google Scholar · View at Scopus
  7. X. Cao, P. Chen, and Y. Guo, “Decoration of textured ZnO nanowires array with CdTe quantum dots: enhanced light-trapping effect and photogenerated charge separation,” Journal of Physical Chemistry C, vol. 112, no. 51, pp. 20560–20566, 2008. View at Publisher · View at Google Scholar · View at Scopus
  8. A. J. Nozik, “Exciton multiplication and relaxation dynamics in quantum dots: applications to ultrahigh-efficiency solar photon conversion,” Inorganic Chemistry, vol. 44, no. 20, pp. 6893–6899, 2005. View at Publisher · View at Google Scholar · View at Scopus
  9. L. Bakueva, I. Gorelikov, S. Musikhin, X. S. Zhao, E. H. Sargent, and E. Kumacheva, “PbS quantum dots with stable efficient luminescence in the near-IR spectral range,” Advanced Materials, vol. 16, no. 11, pp. 926–929, 2004. View at Publisher · View at Google Scholar · View at Scopus
  10. C. Ghosh, S. Pal, P. Sarkar, and T. Frauenheim, “Size and composition dependent electronic and optical properties of GaxAl1-xAs and AlxGa1-xAs alloyed nanocrystals,” Applied Physics Letters, vol. 94, no. 12, Article ID 123105, 3 pages, 2009. View at Publisher · View at Google Scholar · View at Scopus
  11. D. More, C. Rajesh, A. D. Lad, G. R. Kumar, and S. Mahamuni, “Two photon absorption in Mn2+-doped ZnSe quantum dots,” Optics Communications, vol. 283, no. 10, pp. 2150–2154, 2010. View at Publisher · View at Google Scholar · View at Scopus
  12. G. Y. Lan, Z. Yang, Y. W. Lin, Z. H. G. Lin, H. Y. Liao, and H. T. Chang, “A simple strategy for improving the energy conversion of multilayered CdTe quantum dot-sensitized solar cells,” Journal of Materials Chemistry, vol. 19, no. 16, pp. 2349–2355, 2009. View at Publisher · View at Google Scholar · View at Scopus
  13. Y. J. Shen and Y. L. Lee, “Assembly of CdS quantum dots onto mesoscopic TiO2 films for quantum dot-sensitized solar cell applications,” Nanotechnology, vol. 19, no. 4, Article ID 045602, 2008. View at Publisher · View at Google Scholar · View at Scopus
  14. I. Mora-Seró, S. Giménez, T. Moehl et al., “Factors determining the photovoltaic performance of a CdSe quantum dot sensitized solar cell: the role of the linker molecule and of the counter electrode,” Nanotechnology, vol. 19, no. 42, Article ID 424007, 2008. View at Publisher · View at Google Scholar · View at Scopus
  15. N. Guijarro, T. Lana-Villarreal, I. Mora-Seró, J. Bisquert, and R. Gómez, “CdSe quantum dot-sensitized TiO2 electrodes: effect of quantum dot coverage and mode of attachment,” Journal of Physical Chemistry C, vol. 113, no. 10, pp. 4208–4214, 2009. View at Publisher · View at Google Scholar · View at Scopus
  16. Y. L. Lee and Y. S. Lo, “Highly efficient quantum-dot-sensitized solar cell based on co-sensitization of CdS/CdSe,” Advanced Functional Materials, vol. 19, no. 4, pp. 604–609, 2009. View at Publisher · View at Google Scholar · View at Scopus
  17. W. W. Yu, L. Qu, W. Guo, and X. Peng, “Experimental determination of the extinction coefficient of CdTe, CdSe, and CdS nanocrystals,” Chemistry of Materials, vol. 15, no. 14, pp. 2854–2860, 2003. View at Publisher · View at Google Scholar
  18. P. Sudhagar, J. H. Jung, S. Park et al., “The performance of coupled (CdS:CdSe) quantum dot-sensitized TiO2 nanofibrous solar cells,” Electrochemistry Communications, vol. 11, no. 11, pp. 2220–2224, 2009. View at Publisher · View at Google Scholar
  19. M. Adachi, M. Sakamoto, J. Jiu, Y. Ogata, and S. Isoda, “Determination of parameters of electron transport in dye-sensitized solar cells using electrochemical impedance spectroscopy,” Journal of Physical Chemistry B, vol. 110, no. 28, pp. 13872–13880, 2006. View at Publisher · View at Google Scholar · View at Scopus