Enhancing the efficiency of TiO2-perovskite heterojunction solar cell via evaporating Cs2CO3 on TiO2

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 仿生能源与储能系统团队

	Enhancing the efficiency of TiO2-perovskite heterojunction solar cell via evaporating Cs2CO3 on TiO2
	Qin, Laixiang 1; Xie, Ziang 1; Yao, Li 1; Yan, Yu 1; Pang, Shuping 2; Wei, Feng 3; Qin, G. G.1
刊名	PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
	2014-11-01
卷号	8 期号:11 页码:912-916
关键词	perovskites heterojunctions solar cells Cs2CO3 TiO2 power conversion efficiency
英文摘要	In a TiO2-perovskite heterojunction solar cell (TiO2-PHSC), besides the perovskite CH3NH3PbX3, TiO2 as one side of the TiO2/CH3NH3PbX3 heterojunction also plays an important role in the photovoltaic effect. In order to improve the performance of the TiO2-PHSC with the structure of glass/FTO/compact TiO2/mesoporous TiO2/CH3NH3PbI3-xClx /poly-TPD (poly(N,N -bis(4-butylphenyl)-N,N -bis(phenyl)benzidine))/Au, a 2 nanometer thick Cs2CO3 layer is thermally evaporated on the mesoporous TiO2 layer. The short-circuit current density (J(sc)) raises from 17.7 mA cm(-2) to 18.9 mA cm(-2), the open-circuit voltage (V-oc) from 0.81 V to 0.87 V, and the fill factor (FF) from 55.2% to 67.3%; as a result, the power conservation efficiency (PCE) increases from 8.0% to 11.1% under AM 1.5G solar illumination (100 mW cm(-2)). Moreover, in a TiO2-PHSC free of mesoporous TiO2, where Cs2CO3 is evaporated on the compact TiO2 layer, the J(sc), V-oc, FF and PCE values increase from 16.0 mA cm(-2), 0.83 V, 50.8% and 6.7% to 17.9 mA cm(-2), 0.90 V, 59.3%, and 9.5%, respectively. The reasons of the PCE increase for either the first kind of TiO2-PHSC or the mesoporous-TiO2-free TiO2-PHSC with a nanometer-thick Cs2CO3 layer on mesoporous TiO2 or compact TiO2 are discussed. ((c) 2014 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim)
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
研究领域[WOS]	Materials Science ; Physics
关键词[WOS]	ORGANOMETAL HALIDE PEROVSKITES ; LOW-TEMPERATURE ; LOW-COST ; CH3NH3PBI3 ; DEPOSITION ; ELECTRON ; LENGTHS ; NANOROD ; CESIUM ; IODIDE
收录类别	SCI
语种	英语
WOS记录号	WOS:000345274300005
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/6301]
专题	青岛生物能源与过程研究所_仿生能源与储能系统团队
作者单位	1.Peking Univ, Sch Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Gen Res Inst Nonferrous Met, Adv Elect Mat Inst, Beijing 100088, Peoples R China
推荐引用方式 GB/T 7714	Qin, Laixiang,Xie, Ziang,Yao, Li,et al. Enhancing the efficiency of TiO2-perovskite heterojunction solar cell via evaporating Cs2CO3 on TiO2[J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,2014,8(11):912-916.
APA	Qin, Laixiang.,Xie, Ziang.,Yao, Li.,Yan, Yu.,Pang, Shuping.,...&Qin, G. G..(2014).Enhancing the efficiency of TiO2-perovskite heterojunction solar cell via evaporating Cs2CO3 on TiO2.PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,8(11),912-916.
MLA	Qin, Laixiang,et al."Enhancing the efficiency of TiO2-perovskite heterojunction solar cell via evaporating Cs2CO3 on TiO2".PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS 8.11(2014):912-916.