Bulk Photovoltaic Effect at Visible Wavelength in Epitaxial Ferroelectric BiFeO3 Thin Films

被引：557

作者：

Ji, Wei ^{[1
,2
]}

Yao, Kui ^{[1
]}

Liang, Yung C. ^{[2
]}

机构：

[1] ASTAR, IMRE, Singapore 117602, Singapore

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 119260, Singapore

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 15期

关键词：

EFFICIENCY;

D O I：

10.1002/adma.200902985

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Appreciable photovoltaic responses to visible light are observed in epitaxial ferroelectric BiFeO3 thin films by sputtering deposition. The photocurrent direction is opposite to the BiFeO3 polarization vector and can be switched by poling the films in different directions (see figure). The as-deposited films are strongly self-polarized, exhibiting significant photovoltaic response before any electrical poling process.

引用

页码：1763 / +

页数：5

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