Syntheses and X-ray Diffraction, Photochemical, and Optical Characterization of Cu2SixSn1-xS3 (0.4 c="

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• 作者：A. Lafond ; J. A. Cody ; M. Souilah ; C. Guillot-Deudon ; R. Kiebach ; W. Bensch
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：February 19, 2007
• 年：2007
• 卷：46
• 期：4
• 页码：1502 - 1506
• 全文大小：175K
• 年卷期：v.46,no.4(February 19, 2007)
• ISSN：1520-510X

文摘

The study of the pseudobinary system Cu₂SnS₃-Cu₂SiS₃ shows that a solid solution (Cu₂Si_xSn_1-xS₃) exists in therange 0.4 Si/(Sn+Si) 0.6. Based on diffuse reflectance and photoelectrochemical measurements thesecompounds show potential as absorber materials for photovoltaic devices. The compounds were prepared at 850 Cfrom copper sulfide, silicon, tin, and sulfur and were analyzed with single-crystal (for x 0.40) and powder diffractiontechniques. Optical band gaps of 1.25, 1.35, and 1.45 eV were observed for the three compositions x = 0.39,0.48, and 0.61; cathodic photocurrent occurring is significant.