Open AccessThe CdS/CdSe/ZnS Photoanode Cosensitized Solar Cells Basedon Pt, CuS, Cu2S, and PbS Counter Electrodes
Author(s) -
Hà Thanh Tùng,
Dat Huynh Thanh,
Quang Vinh Lam
Publication year - 2014
Publication title -
advances in optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.118
H-Index - 21
eISSN - 1687-5648
pISSN - 1687-563X
DOI - 10.1155/2014/397681
Subject(s) - electrode , auxiliary electrode , anode , materials science , quantum dot , electrocatalyst , mesoporous material , chemical bath deposition , deposition (geology) , nanotechnology , chemical engineering , optoelectronics , analytical chemistry (journal) , chemistry , band gap , electrochemistry , catalysis , electrolyte , biochemistry , chromatography , sediment , biology , engineering , paleontology
Highly ordered mesoporous TiO2 modified by CdS, CdSe, and ZnS quantum dots (QDs) was fabricated by successive ionic layer adsorption and reaction (SILAR) method. The quantity of material deposition seems to be affected not only by the employed deposition method but also and mainly by the nature of the underlying layer. The CdS, CdSe, and ZnS QDs modification expands the photoresponse range of mesoporous TiO2 from ultraviolet region to visible range, as confirmed by UV-Vis spectrum. Optimized anode electrodes led to solar cells producing high current densities. Pt, CuS, PbS, and Cu2S have been used as electrocatalysts on counter electrodes. The maximum solar conversion efficiency reached in this work was 1.52% and was obtained by using Pt electrocatalyst. CuS, PbS, and Cu2S gave high currents and this was in line with the low charge transfer resistances recorded in their case
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