Enhancement of oxygen vacancies induced photovoltaic effects in Bi0.9La0.1FeO3 thin films

Rong Li Gao; Chun Lin Fu; Wei Cai; Gang Chen; Xiao Ling Deng; Huai Wen Yang; Irong Sun; Bao Gen Shen

doi:10.4028/www.scientific.net/MSF.815.176

Enhancement of oxygen vacancies induced photovoltaic effects in Bi_0.9La_0.1FeO₃ thin films

Rong Li Gao^*
, Chun Lin Fu
, Wei Cai
, Gang Chen
, Xiao Ling Deng
, Huai Wen Yang
, Irong Sun
, Bao Gen Shen

^*Corresponding author for this work

Chongqing University of Science and Technology
CAS - Institute of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

The photovoltaic effect in Ag/Bi_0.9La_0.1FeO₃/La_0.7Sr_0.3MnO₃ heterostructures was investigated and the short circuit photocurrent was found to be strongly dependent on the polarization orientation and oxygen vacancies (VO_s) distribution. The photocurrent direction was switched accompanying polarization switching. Besides, according to manipulate the VOs accumulated at either the Ag/Bi_0.9La_0.1FeO₃ or the Bi_0.9La_0.1FeO₃/La_0.7Sr_0.3MnO₃ interface by electric pulses, obvious enhancement of photovoltaic effects was obtained. These results can be explained well using the concepts of drift current and diffusion current controlled by the combination of oxygen vacancies and polarization. This work provides deep insights into the nature of photovoltaic effects in ferroelectric films, and will facilitate the advanced design devices combining spintronic, electronic, and optical functionalities.

Original language	English
Title of host publication	Advanced Functional Materials
Editors	Yafang Han, Zhongwei Gu, Qiang Fu
Publisher	Trans Tech Publications Ltd
Pages	176-182
Number of pages	7
ISBN (Electronic)	9783038353942
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.815.176
State	Published - 2015
Externally published	Yes
Event	Chinese Materials Congress, CMC 2014 - Chengdu, China Duration: 4 Jul 2014 → 7 Jul 2014

Publication series

Name	Materials Science Forum
Volume	815
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	Chinese Materials Congress, CMC 2014
Country/Territory	China
City	Chengdu
Period	4/07/14 → 7/07/14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

BiFeO
Oxygen vacancies
Photovoltaic effect

Access to Document

10.4028/www.scientific.net/MSF.815.176

Cite this

Gao, R. L., Fu, C. L., Cai, W., Chen, G., Deng, X. L., Yang, H. W., Sun, I., & Shen, B. G. (2015). Enhancement of oxygen vacancies induced photovoltaic effects in Bi_0.9La_0.1FeO₃ thin films. In Y. Han, Z. Gu, & Q. Fu (Eds.), Advanced Functional Materials (pp. 176-182). (Materials Science Forum; Vol. 815). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.815.176

@inproceedings{c4df3ce8f04f4102bfbd4b10031ff30c,

title = "Enhancement of oxygen vacancies induced photovoltaic effects in Bi0.9La0.1FeO3 thin films",

abstract = "The photovoltaic effect in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 heterostructures was investigated and the short circuit photocurrent was found to be strongly dependent on the polarization orientation and oxygen vacancies (VOs) distribution. The photocurrent direction was switched accompanying polarization switching. Besides, according to manipulate the VOs accumulated at either the Ag/Bi0.9La0.1FeO3 or the Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 interface by electric pulses, obvious enhancement of photovoltaic effects was obtained. These results can be explained well using the concepts of drift current and diffusion current controlled by the combination of oxygen vacancies and polarization. This work provides deep insights into the nature of photovoltaic effects in ferroelectric films, and will facilitate the advanced design devices combining spintronic, electronic, and optical functionalities.",

keywords = "BiFeO, Oxygen vacancies, Photovoltaic effect",

author = "Gao, \{Rong Li\} and Fu, \{Chun Lin\} and Wei Cai and Gang Chen and Deng, \{Xiao Ling\} and Yang, \{Huai Wen\} and Irong Sun and Shen, \{Bao Gen\}",

note = "Publisher Copyright: {\textcopyright} (2015) Trans Tech Publications, Switzerland.; Chinese Materials Congress, CMC 2014 ; Conference date: 04-07-2014 Through 07-07-2014",

year = "2015",

doi = "10.4028/www.scientific.net/MSF.815.176",

language = "英语",

series = "Materials Science Forum",

publisher = "Trans Tech Publications Ltd",

pages = "176--182",

editor = "Yafang Han and Zhongwei Gu and Qiang Fu",

booktitle = "Advanced Functional Materials",

address = "瑞士",

}

Gao, RL, Fu, CL, Cai, W, Chen, G, Deng, XL, Yang, HW, Sun, I & Shen, BG 2015, Enhancement of oxygen vacancies induced photovoltaic effects in Bi_0.9La_0.1FeO₃ thin films. in Y Han, Z Gu & Q Fu (eds), Advanced Functional Materials. Materials Science Forum, vol. 815, Trans Tech Publications Ltd, pp. 176-182, Chinese Materials Congress, CMC 2014, Chengdu, China, 4/07/14. https://doi.org/10.4028/www.scientific.net/MSF.815.176

Enhancement of oxygen vacancies induced photovoltaic effects in Bi_0.9La_0.1FeO₃ thin films. / Gao, Rong Li; Fu, Chun Lin; Cai, Wei et al.
Advanced Functional Materials. ed. / Yafang Han; Zhongwei Gu; Qiang Fu. Trans Tech Publications Ltd, 2015. p. 176-182 (Materials Science Forum; Vol. 815).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Enhancement of oxygen vacancies induced photovoltaic effects in Bi0.9La0.1FeO3 thin films

AU - Gao, Rong Li

AU - Fu, Chun Lin

AU - Cai, Wei

AU - Chen, Gang

AU - Deng, Xiao Ling

AU - Yang, Huai Wen

AU - Sun, Irong

AU - Shen, Bao Gen

PY - 2015

Y1 - 2015

N2 - The photovoltaic effect in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 heterostructures was investigated and the short circuit photocurrent was found to be strongly dependent on the polarization orientation and oxygen vacancies (VOs) distribution. The photocurrent direction was switched accompanying polarization switching. Besides, according to manipulate the VOs accumulated at either the Ag/Bi0.9La0.1FeO3 or the Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 interface by electric pulses, obvious enhancement of photovoltaic effects was obtained. These results can be explained well using the concepts of drift current and diffusion current controlled by the combination of oxygen vacancies and polarization. This work provides deep insights into the nature of photovoltaic effects in ferroelectric films, and will facilitate the advanced design devices combining spintronic, electronic, and optical functionalities.

AB - The photovoltaic effect in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 heterostructures was investigated and the short circuit photocurrent was found to be strongly dependent on the polarization orientation and oxygen vacancies (VOs) distribution. The photocurrent direction was switched accompanying polarization switching. Besides, according to manipulate the VOs accumulated at either the Ag/Bi0.9La0.1FeO3 or the Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 interface by electric pulses, obvious enhancement of photovoltaic effects was obtained. These results can be explained well using the concepts of drift current and diffusion current controlled by the combination of oxygen vacancies and polarization. This work provides deep insights into the nature of photovoltaic effects in ferroelectric films, and will facilitate the advanced design devices combining spintronic, electronic, and optical functionalities.

KW - BiFeO

KW - Oxygen vacancies

KW - Photovoltaic effect

UR - https://www.scopus.com/pages/publications/84928689444

U2 - 10.4028/www.scientific.net/MSF.815.176

DO - 10.4028/www.scientific.net/MSF.815.176

M3 - 会议稿件

AN - SCOPUS:84928689444

T3 - Materials Science Forum

SP - 176

EP - 182

BT - Advanced Functional Materials

A2 - Han, Yafang

A2 - Gu, Zhongwei

A2 - Fu, Qiang

PB - Trans Tech Publications Ltd

T2 - Chinese Materials Congress, CMC 2014

Y2 - 4 July 2014 through 7 July 2014

ER -