Ferroelectric polarization enhancement of photovoltaic effects in BaTiO₃/BiFeO₃/TiO₂ heterostructure by introducing double-functional layers

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• 作者：Feng Zhang^a ; Meiya Li^a ; ^{myli@whu.edu.cn} ; Yongdan Zhu^b ; ^{zydlucky@126.com} ; Meng Zhao^a ; Shuai Xie^a ; Maocai Wei^a ; Yingwei Li^c ; Zhongqiang Hu^d ; Min Li^a
• 关键词：BiFeO3 multilayer heterostructure ; Photovoltaic effects ; Energy band matching ; Ferroelectric polarization modulation ; Electron/hole transport layers
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：3178-3182
• 全文大小：1123 K
• 卷排序：695

文摘

The BaTiO3/BiFeO3/TiO2 heterostructure shows excellent photovoltaic properties. The BaTiO3 and TiO2 layers acts respectively as electron and hole transferring layers. The photovoltaic properties are effectively modulated by ferroelectric polarization. The excellent properties are attributed to interface barriers and polarization field. This study provide a promising way to optimize ferroelectric photovoltaic properties.