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SnO2薄膜对锆钛酸铅光电性能的提升
作者:岳建设   王晓芳 李尔波   
单位:(咸阳师范学院化学与化工学院 陕西 咸阳 712000) 
关键词:锆钛酸铅 光伏特性 氧化锡薄膜 化学气相沉积 
分类号:TB34
出版年,卷(期):页码:2019,47(10):0-0
DOI:
摘要:

 锆钛酸铅(PZT)铁电薄膜具有良好的铁电–光伏特性,是性能优良的光电器件材料。使用溶胶–凝胶法在单晶硅上制备PZT铁电薄膜,为了增加PZT薄膜的光伏特性,使用气相沉积技术在PZT薄膜表面沉积一层SnO2半导体薄膜。结果表明:光电转化效率从7.32×10–6提高至2.17×10–5,提升了约2倍。SnO2薄膜能够消除电极与PZT之间的Schottky势垒,有效地分离所产生的电子–空穴对,显著增加PZT的光电流,对PZT极化后,使退极化电场与SnO2/PZT界面电场方向一致,在二者电场的共同作用下,可以进一步分离光生电子–空穴,PZT的光电流提高了1倍。

基金项目:
陕西省大学生创新创业训练计划项目(201828037)。
作者简介:
参考文献:

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