Abstract

We prepare CdS/CdSe/ZnS thin films by successive ionic layer adsorption and reaction method. Results show a wider photoresponse range of TiO₂ mesopores from the ultraviolet region to the visible light region. Sequentially assembled CdS/CdSe/ZnS quantumdots exhibit significantly improved light-harvesting ability and photocurrent efficiency. A high efficiency of 1.059354% is obtained.

© 2013 Chinese Optics Letters

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