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OALib Journal期刊
ISSN: 2333-9721
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不同浓度TiCl4 浸渍的SnO2 光阳极对染料敏化太阳能电池性能的影响
DOI: 10.14062/j.issn.0454-5648.2015.11.03
Abstract:
采用溶剂热法制备出花状SnO2晶体，然后在FTO导电玻璃上制得SnO2薄膜。将SnO2薄膜在不同浓度TiCl4溶液中浸渍1h，并经450℃煅烧30min得到SnO2-TiO2复合薄膜光阳极。经N3染料浸渍后，与Pt对电极，I–/I3–电解质组装成染料敏化太阳能电池(DSSC)，测试了DSSC的性能。结果表明TiCl4浸泡有利于提高SnO2-DSSC的光电性能，当TiCl4浓度为0.15mol/L时，SnO2-TiO2-DSSC的短路电流(Jsc)和开路电压(Voc)分别达到11.30mA/cm2和0.55V，电池的光电转换效率达到3.24%，与纯花状SnO2-DSSC相比提高了近4倍。分析了不同浓度的TiCl4对光阳极的电子输运和光电转换效率的影响机制。
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