Ultrasensitive and Fast All-Inorganic Perovskite-Based Photodetector via Fast Carrier Diffusion

	Ultrasensitive and Fast All-Inorganic Perovskite-Based Photodetector via Fast Carrier Diffusion
	Han, Keli 4; Chen, Junsheng 2,3,4; Zhang, Fengying 4; Yang, Bin 1,4; Yang, Songqiu 4; Xia, Xusheng 1,4; Pullerits, Tonu 2,3; Deng, Weiqiao 4
刊名	ADVANCED MATERIALS
	2017-10-25
卷号	29 期号:40
关键词	CsPbBr3 optoelectronics perovskites photoluminescence single crystals
英文摘要	Low trap-state density, high carrier mobility, and efficient charge carrier collection are key parameters for photodetectors with high sensitivity and fast response time. This study demonstrates a simple solution growth method to prepare CsPbBr3 microcrystals (MCs) with low trap-state density. Time-dependent photoluminescence study with one-photon excitation (OPE) and two-photon excitation (TPE) indicates that CsPbBr3 MCs exhibit fast carrier diffusion with carrier mobility over 100 cm(2) V-1 S-1. Furthermore, CsPbBr3 MC-based photodetectors with high charge carriers' collection efficiency are fabricated. Such photodetectors show ultrahigh responsivity (R) up to 6 x 10(4) A W-1 with OPE and high R up to 6 A W-1 with TPE. The R for OPE is over one order of magnitude higher (the R for TPE is three orders of magnitude higher) than that of previously reported all-inorganic perovskite-based photodetectors. Moreover, the photodetectors exhibit fast response time of approximate to 1 ms, which corresponds to a gain approximate to 10(5) and a gain- bandwidth product of 10(8) Hz for OPE (a gain approximate to 10 (3) and a gain-bandwidth product of 10(6) Hz for TPE).
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]	PHOTOELECTRIC DETECTION APPLICATION ; OPTICAL-DATA STORAGE ; SINGLE-CRYSTALS ; QUANTUM DOTS ; OPTOELECTRONIC APPLICATION ; 2-PHOTON ABSORPTION ; HALIDE PEROVSKITES ; NARROW-BAND ; CSPBBR3 ; CH3NH3PBI3
收录类别	SCI
语种	英语
WOS记录号	WOS:000413406200024
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/149667]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Univ Chinese Acad Sci, Beijing 10049, Peoples R China 2.Lund Univ, Dept Chem Phys, POB 124, S-22100 Lund, Sweden 3.Lund Univ, NanoLund Chem Ctr, POB 124, S-22100 Lund, Sweden 4.Chinese Acad Sci, State Key Lab Mol React Dynam, DICP, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Han, Keli,Chen, Junsheng,Zhang, Fengying,et al. Ultrasensitive and Fast All-Inorganic Perovskite-Based Photodetector via Fast Carrier Diffusion[J]. ADVANCED MATERIALS,2017,29(40).
APA	Han, Keli.,Chen, Junsheng.,Zhang, Fengying.,Yang, Bin.,Yang, Songqiu.,...&Deng, Weiqiao.(2017).Ultrasensitive and Fast All-Inorganic Perovskite-Based Photodetector via Fast Carrier Diffusion.ADVANCED MATERIALS,29(40).
MLA	Han, Keli,et al."Ultrasensitive and Fast All-Inorganic Perovskite-Based Photodetector via Fast Carrier Diffusion".ADVANCED MATERIALS 29.40(2017).