Piezostrain-enhanced photovoltaic effects in BiFeO3/La0.7Sr0.3MnO3/PMN-PT heterostructures

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	Piezostrain-enhanced photovoltaic effects in BiFeO3/La0.7Sr0.3MnO3/PMN-PT heterostructures
	Zhang, Wei 1,2,3; Yang, Ming-Min 3; Liang, Xiao 1,2; Zheng, Hai-Wu 1,2; Wang, Yu 4; Gao, Wen-Xiu 5; Yuan, Guo-Liang 5; Zhang, Wei-Feng 1,2; Li, Xiao-Guang 6,7,8,9; Luo, Hao-Su 3
刊名	NANO ENERGY
	2015-11-01
卷号	18 页码:315-324
关键词	Photovoltaic effect Piezoelectric strain BiFeO3 film PMN-PT single crystal
英文摘要	BiFeO3 (BFO) is a unique multiferroic material that shows interesting but rather weak photovoltaic effect. Here, we report the integration of PUBFO/La0.7Sr0.3MnO3(LSMO) photovoltaic devices on piezoelectric 0.71Pb(Mg1/3Nb2/3)O-3-0.29PbTiO(3) (PMN-PT) single-crystal substrates and realized a piezo-photovoltaic effects in the BFO/LSMO/PMN-PT heterostructures through in situ dynamical strain engineering. Upon the application of an electric field of +10 kV/cm, an in-plane compressive strain was induced in the PMN-PT via the converse piezoelectric effect, which was effectively transferred to the BFO film through the LSMO, leading to a change in the in-plane strain and bandgap of the BFO film by similar to 0.12% and similar to 22 meV, respectively. As a result, the power conversion coefficiency (PCE) eta was dramatically enhanced by similar to 218%, corresponding to a gauge factor (Delta eta/eta)/delta(epsilon xx)similar to 1817. The results demonstrate that the dynamic strain engineering of photovoltaic properties using the converse piezoelectric effect is an effective and unique approach for realizing enhanced PCE of ferroelectric thin film based photovoltaic devices. (C) 2015 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]	BIFEO3 THIN-FILMS ; SOLAR-CELLS ; FERROELECTRIC BIFEO3 ; ROOM-TEMPERATURE ; TRANSITION ; HETEROJUNCTION ; CONDUCTION ; DEVICES ; OXIDE
收录类别	SCI
语种	英语
WOS记录号	WOS:000369918500033
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23175]
专题	上海硅酸盐研究所_人工晶体研究中心_期刊论文
作者单位	1.Henan Univ, Inst Microsyst, Sch Phys & Elect, Kaifeng 475004, Peoples R China 2.Henan Univ, Key Lab Photovolta Mat Henan Prov, Kaifeng 475004, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 4.Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Peoples R China 5.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China 6.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 7.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China 8.Anhui Univ, Sch Phys & Mat Sci, Hefei 230039, Peoples R China 9.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wei,Yang, Ming-Min,Liang, Xiao,et al. Piezostrain-enhanced photovoltaic effects in BiFeO3/La0.7Sr0.3MnO3/PMN-PT heterostructures[J]. NANO ENERGY,2015,18:315-324.
APA	Zhang, Wei.,Yang, Ming-Min.,Liang, Xiao.,Zheng, Hai-Wu.,Wang, Yu.,...&Zheng, Ren-Kui.(2015).Piezostrain-enhanced photovoltaic effects in BiFeO3/La0.7Sr0.3MnO3/PMN-PT heterostructures.NANO ENERGY,18,315-324.
MLA	Zhang, Wei,et al."Piezostrain-enhanced photovoltaic effects in BiFeO3/La0.7Sr0.3MnO3/PMN-PT heterostructures".NANO ENERGY 18(2015):315-324.