Perovskite Quantum Dot Solar Cells with 15.6% Efficiency and Improved Stability Enabled by an alpha-CsPbI3/FAPbI(3) Bilayer Structure

doi:10.1021/acsenergylett.9b01920

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Perovskite Quantum Dot Solar Cells with 15.6% Efficiency and Improved Stability Enabled by an alpha-CsPbI3/FAPbI(3) Bilayer Structure
	Li, FC ; Zhou, SJ ; Yuan, JY ; Qin, CC ; Yang, YG ; Shi, JW ; Ling, XF ; Li, YY ; Ma, WL
刊名	ACS ENERGY LETTERS
	2019
卷号	4 期号:11 页码:2571-2578
关键词	ANION-EXCHANGE NANOCRYSTALS BR CL LUMINESCENT TRANSPORT CSPBX3
ISSN号	2380-8195
DOI	10.1021/acsenergylett.9b01920
文献子类	期刊论文
英文摘要	We developed lead halide perovskite quantum dot (QD) solar cells with a combinational absorbing layer based on stacked alpha-CsPbI3 and FAPbI(3). alpha-CsPbI3 QDs, with a relatively wide bandgap of 1.75 eV, are not ideal for single-junction solar cells. We show that the absorption can be broadened by the introduction of another QD layer with a narrower bandgap like FAPbI(3). The alpha-CsPbI3/FAPI(3) structure together with thermal annealing can improve the electrical coupling in the FAPbI(3) layer and induce A-site cation exchange to develop a graded heterojunction for more efficient charge extraction. A highest power conversion efficiency of 15.6% and improved ambient stability have been achieved for the bilayer structured solar cells. More interestingly, the perovskite QDs provided a facile way to fabricate multiple layers and quantum junctions for optoelectronic applications via layer-by-layer deposition, which cannot be realized in solution-processed perovskite thin-film devices.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32159]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Henan Normal Univ, Coll Phys & Mat Sci, Xinxiang 453007, Henan, Peoples R China; 2.Soochow Univ, Joint Int Res Lab Carbon Based Funct Mat & Device, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, 199 Ren Ai Rd,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R China; 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Li, FC,Zhou, SJ,Yuan, JY,et al. Perovskite Quantum Dot Solar Cells with 15.6% Efficiency and Improved Stability Enabled by an alpha-CsPbI3/FAPbI(3) Bilayer Structure[J]. ACS ENERGY LETTERS,2019,4(11):2571-2578.
APA	Li, FC.,Zhou, SJ.,Yuan, JY.,Qin, CC.,Yang, YG.,...&Ma, WL.(2019).Perovskite Quantum Dot Solar Cells with 15.6% Efficiency and Improved Stability Enabled by an alpha-CsPbI3/FAPbI(3) Bilayer Structure.ACS ENERGY LETTERS,4(11),2571-2578.
MLA	Li, FC,et al."Perovskite Quantum Dot Solar Cells with 15.6% Efficiency and Improved Stability Enabled by an alpha-CsPbI3/FAPbI(3) Bilayer Structure".ACS ENERGY LETTERS 4.11(2019):2571-2578.