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论文类型：期刊论文

发表时间：2009-07-28

发表刊物：CHEMISTRY OF MATERIALS

收录刊物：SCIE、EI、Scopus

卷号：21

期号：14

页面范围：3090-3095

ISSN号：0897-4756

摘要："Mulberry-like" CdSe nanoclusters with well-defined crystallinity have been assembled into vertically aligned TiO2 nanotubes by photo-assisted electrodeposition method to form new architecture CdSe nanoclusters, caused by the synergistic effect of photoetching and electrodeposition, broaden the absorption spectra to entire visible region with a promising behavior of photoinduced charge separation. A photocurrent density of 16 mA cm(-2) was achieved under 100 mW cm(-2) visible light illumination with 0V bias potential (vs SCE). The remarkable photoresponse should be ascribed to the high-quality of 3-D multijunction structure and the driving force for electron transfer in "mulberry-like" nanoclusters. The experimental demonstration provides a strategy for integrating novel "mulberry-like" nanoclusters to fabricate semiconductor nanocrystal sensitized photovoltaic cells.