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International Journal of Photoenergy
Volume 2012, Article ID 857567, 5 pages
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.


A layer-by-layer assemble method was used to fabricate CdS quantum dots (QDs) sensitized electrodes. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM) have been utilized to characterize the samples. The absorption spectra and photovoltaic measurement confirmed that much more effective deposition of QDs in matrix and much better power conversion performance were achieved for these multilayer electrodes compared with the ones fabricated by traditional single-layer assembly method.