Roles of oxygen vacancy and ferroelectric polarization in photovoltaic effects of BiFeO3 based devices

被引：14

作者：

Wang, Zifei ^{[1
,2
,3
]}

Yang, Xinyue ^{[1
,2
,3
]}

He, Xuemin ^{[1
,2
,3
]}

Xue, Hongtao ^{[1
,2
]}

Wang, Xingfu ^{[1
,2
,3
,6
]}

Dong, Huiyuan ^{[1
,2
,3
]}

Zhu, Jiangwei ^{[5
]}

Mao, Weiwei ^{[1
,2
,3
]}

Xu, XingLiang ^{[4
]}

Li, Xing'ao ^{[1
,2
,3
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Sch Telecommun & Informat Engn, Nanjing 210023, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Sch Sci, Nanjing 210023, Peoples R China

[3] Nanjing Univ Posts & Telecommun, New Energy Technol Engn Lab Jiangsu Prov, Nanjing 210023, Peoples R China

[4] Zhejiang Univ Sci & Technol, Dept Phys, Hangzhou 310023, Peoples R China

[5] Nanjing Forestry Univ, Co Innovat Ctr Sustainable Forestry Southern Chin, Nanjing 210037, Peoples R China

[6] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2023年 / 360卷

基金：

中国国家自然科学基金;

关键词：

Photovoltaic effect; BiFeO3; Ferroelectric property; Oxygen vacancy; ELECTRICAL-PROPERTIES; SUBSTITUTION; BANDGAP;

D O I：

10.1016/j.ssc.2022.115042

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work, with BiFeO3 (BFO) and corresponding photovoltaic devices obtained by spin coating, deep insights into the role of polarization and oxygen vacancy in photovoltaic performance. Doped La and Sr present an opportunity to implement quite diverse effect on ferroelectric and photovoltaic properties of BFO based devices film. It can be concluded that Sr-doped ions could meliorate the photovoltaic performance of BFO based devices by introducing more oxygen vacancies with the highest open circuit voltage. The effect of electric field on photovoltaic response can be improved in La-doped device by enhancing the ferroelectric property. These results will facilitate the understanding of mechanisms in ferroelectric photovoltaic devices with tunable performance and advance new many-sided route for exploring enhanced photovoltaic properties based on ferroelectric films.

引用

页数：5

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