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题名: Perovskite CH3NH3PbI3-xBrx Single Crystals with Charge-Carrier Lifetimes Exceeding 260 mu s
作者: Zhang, Fengying1, 2;  Yang, Bin2;  Mao, Xin2;  Yang, Ruixia2;  Jiang, Lei2;  Li, Yajuan2;  Xiong, Jian2;  Yang, Yang2;  He, Rongxing1;  Deng, Weiqiao2;  Han, Keli2
关键词: carrier lifetime ;  photovoltaic device ;  single crystal ;  trap-state density ;  charge-injection efficiency
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2017-05-03
DOI: 10.1021/acsami.7b01696
卷: 9, 页:14827-14832
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Science & Technology - Other Topics ;  Materials Science
英文摘要: The long carrier lifetimes in perovskite single crystals have drawn significant attention recently on account of their irreplaceable contribution to high-performance photovoltaic (PV) devices. Herein, the optical and optoelectronic properties" of CH3NH3PbI3 and CH3NH3PbI3-xBrx (with five, different contents of Br doped) single crystals were investigated. Notably, a superior Carrier lifetime of up to 262 mu s Was observed in the CH3NH3PbI3-xBrx (I/Br= 10:1 in the precursor) single crystal PV device under 1 sun illumination, which is two times longer than that in the CH3NH3PbI3 single crystal. Further study confirmed that the ultralong Carrier lifetime was ascribed to the integrated superiority derived from both the low trap" -state density and high charge-injection efficiency of the device interface. On this basis, appropriate incorporation of Br is useful in the design of better PV devices.
关键词[WOS]: SOLAR-CELLS ;  HIGH-PERFORMANCE ;  HALIDE PEROVSKITES ;  EFFICIENCY ;  RECOMBINATION ;  DIFFUSION ;  ABSORBER ;  EXCHANGE ;  LENGTHS ;  GROWTH
语种: 英语
WOS记录号: WOS:000400802700030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152291
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Southwest Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Luminescence & Real Time Analyt Chem, Chongqing 400715, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Zhang, Fengying,Yang, Bin,Mao, Xin,et al. Perovskite CH3NH3PbI3-xBrx Single Crystals with Charge-Carrier Lifetimes Exceeding 260 mu s[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9:14827-14832.
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