钙钛矿敏化TiO2-SrTiO3纳米棒太阳能电池的制备及性能研究
he Synthesis of TiO2-SrTiO3 Nanorod Arrays and Their Photoelectrical Performance in Perovskite Sensitized Solar Cells
本文采用简单的水热方法在FTO（掺杂氟的SnO2导电玻璃（SnO2:F））衬底上直接合成了一维取向的单晶金红石型二氧化钛薄膜，然后使用二氧化钛纳米棒作为模板和反应物，Sr(OH)2作为锶源，通过水热反应成功在TiO2纳米棒阵列的表面沉积了SrTiO3立方纳米颗粒。并以TiO2-SrTiO3作为工作电极，钙钛矿型的CH3NH3PbI3和CsSnI2.95F0.05分别作为光敏剂和电解质组装敏化太阳能电池。通过调整煅烧温度和二次水热反应中Sr(OH)2溶液的浓度，钙钛矿敏化太阳能电池的光电转换性能有明显改善，最高效率达到0.34%，是未经SrTiO3修饰样品的2倍。
In this study, the heterostructured TiO2-SrTiO3 nanorod array films were synthesized through a two-step hydrothermal method. The perovskite SrTiO3 cubic nanoparticles were evenly deposited on the surface of single-crystallized TiO2 nanorod arrays. The all-solid-state solar cells (DSSCs) were fabricated with the TiO2-SrTiO3 heterostructured composite as the photoanode, the perovskite CH3NH3PbI3 and CsSnI2.95F0.05 as the sensitizer and electrolyte respectively. From the photoelectrical measurement, the performance of the solar cells were highly improved by changing the sintering temperature and the concentration of the strontium precusor. The highest photoelectrical conversion efficiency of SrTiO3-TiO2 system reached 0.34%, which was about 2 times of the undecorated TiO2 system.
李阳、张敏、董立峰、刘秋红、孙琼
能源动力工业经济
iO2SrTiO3钙钛矿太阳能电池
iO2SrTiO3perovskitesolar cell
李阳,张敏,董立峰,刘秋红,孙琼.钙钛矿敏化TiO2-SrTiO3纳米棒太阳能电池的制备及性能研究[EB/OL].(2014-09-26)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201409-339.点此复制
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