Synthesis of CdSe−TiO2 Nanocomposites and Their Applications to TiO2 Sensitized Solar Cells

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• 作者：JinYoung Kim ; SungBum Choi ; JunHong Noh ; SungHun Yoon ; Sangwook Lee ; TaeHoon Noh ; Arthur J. Frank ; KugSun Hong
• 刊名：Langmuir
• 出版年：2009
• 出版时间：May 5, 2009
• 年：2009
• 卷：25
• 期：9
• 页码：5348-5351
• 全文大小：1034K
• 年卷期：v.25,no.9(May 5, 2009)
• ISSN：1520-5827

文摘

CdSe−TiO₂ nanocomposites were synthesized via aminolysis of Ti−oleate complexes in the presence of CdSe nanocrystals, and their application as sensitizers for TiO₂ solar cells was investigated. The formation of CdSe−TiO₂ nanocomposites was confirmed using transmission electron microscopy and Raman spectroscopy. The emission spectrum of CdSe−TiO₂ nanocomposites revealed photoinduced charge separation at the CdSe−TiO₂ interface of the composite. The photocurrent−voltage properties of CdSe−TiO₂-sensitized TiO₂ particle films compared favorably with those of CdSe-sensitized TiO₂ films. Evidence was also found indicating that the TiO₂ component of the composite protects CdSe against degradation during film annealing.