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High Resolution Mapping of Two-Photon Excited Photocurrent in Perovskite Microplate Photodetector

文献类型：期刊论文

作者Han, Keli1; Pullerits, Tonu3; Yang, Bin1,2; Chen, Junsheng1,3; Shi, Qi3; Wang, Zhengjun3; Gerhard, Marina3; Dobrovolsky, Alexander3; Scheblykin, Ivan G.3; Karki, Khadga Jung3
刊名JOURNAL OF PHYSICAL CHEMISTRY LETTERS
出版日期2018-09-06
卷号9期号:17页码:5017-5022
ISSN号1948-7185
DOI10.1021/acs.jpclett.8b02250
通讯作者Karki, Khadga Jung(khadga_jung.karki@chemphys.lu.se) ; Han, Keli(klhan@dicp.ac.cn) ; Pullerits, Tonu(tonu.pullerits@chemphys.lu.se)
英文摘要We fabricate photodetectors based on solution-processed single CH3NH3PbBr3 microcrystals (MCs) and map the two-photon absorption (TPA) excited photocurrent (PC) with spatial resolution of 1 mu m. We find that the charge carrier transport length in the MCs depends on the applied electric field, and increases from 5.7 mu m for 0.02 V bias (dominated by carrier diffusion) to 23.2 mu m for 2 V bias (dominated by carrier drift). Furthermore, PC shows strong spatial variations. Combining the PC mapping results with time-resolved photoluminescence microscopy, we demonstrate that the spatial distribution of PC mainly originates from the inhomogeneous distribution of trap-states across perovskite MCs. This suggests that there is still large margin for improvement of perovskite single crystal devices by better controlling of the traps.
WOS关键词SINGLE-CRYSTALS ; DIFFUSION LENGTHS ; SOLAR-CELLS ; BROMIDE PEROVSKITES ; TRANSPORT LENGTHS ; CARRIER DIFFUSION ; NANOSTRUCTURES ; CH3NH3PBI3 ; ABSORPTION ; MICROLASERS
资助项目National Natural Science Foundation of China[21533010] ; National Natural Science Foundation of China[21321091] ; National Natural Science Foundation of China[21525315] ; National Natural Science Foundation of China[91333116] ; Ministry of Science and Technology of China[2017YFA0204800] ; Swedish Research Council (VR) ; Swedish Energy Agency ; Laser-lab Europe (EU-H2020)[654148] ; NanoLund ; Carl Trygger Foundation ; Knut and Alice Wallenberg Foundation ; Wenner-Gren fellowship
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000444353900031
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Swedish Research Council (VR) ; Swedish Research Council (VR) ; Swedish Energy Agency ; Swedish Energy Agency ; Laser-lab Europe (EU-H2020) ; Laser-lab Europe (EU-H2020) ; NanoLund ; NanoLund ; Carl Trygger Foundation ; Carl Trygger Foundation ; Knut and Alice Wallenberg Foundation ; Knut and Alice Wallenberg Foundation ; Wenner-Gren fellowship ; Wenner-Gren fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Swedish Research Council (VR) ; Swedish Research Council (VR) ; Swedish Energy Agency ; Swedish Energy Agency ; Laser-lab Europe (EU-H2020) ; Laser-lab Europe (EU-H2020) ; NanoLund ; NanoLund ; Carl Trygger Foundation ; Carl Trygger Foundation ; Knut and Alice Wallenberg Foundation ; Knut and Alice Wallenberg Foundation ; Wenner-Gren fellowship ; Wenner-Gren fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Swedish Research Council (VR) ; Swedish Research Council (VR) ; Swedish Energy Agency ; Swedish Energy Agency ; Laser-lab Europe (EU-H2020) ; Laser-lab Europe (EU-H2020) ; NanoLund ; NanoLund ; Carl Trygger Foundation ; Carl Trygger Foundation ; Knut and Alice Wallenberg Foundation ; Knut and Alice Wallenberg Foundation ; Wenner-Gren fellowship ; Wenner-Gren fellowship ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Swedish Research Council (VR) ; Swedish Research Council (VR) ; Swedish Energy Agency ; Swedish Energy Agency ; Laser-lab Europe (EU-H2020) ; Laser-lab Europe (EU-H2020) ; NanoLund ; NanoLund ; Carl Trygger Foundation ; Carl Trygger Foundation ; Knut and Alice Wallenberg Foundation ; Knut and Alice Wallenberg Foundation ; Wenner-Gren fellowship ; Wenner-Gren fellowship
源URL[http://cas-ir.dicp.ac.cn/handle/321008/167022]  
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
通讯作者Han, Keli; Pullerits, Tonu; Karki, Khadga Jung
作者单位1.Chinese Acad Sci, DICP, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Lund Univ, Chem Ctr, Dept Chem Phys & NanoLund, POB 124, S-22100 Lund, Sweden
推荐引用方式
GB/T 7714		 Han, Keli,Pullerits, Tonu,Yang, Bin,et al. High Resolution Mapping of Two-Photon Excited Photocurrent in Perovskite Microplate Photodetector[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2018,9(17):5017-5022.
APA Han, Keli.,Pullerits, Tonu.,Yang, Bin.,Chen, Junsheng.,Shi, Qi.,...&Karki, Khadga Jung.(2018).High Resolution Mapping of Two-Photon Excited Photocurrent in Perovskite Microplate Photodetector.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,9(17),5017-5022.
MLA Han, Keli,et al."High Resolution Mapping of Two-Photon Excited Photocurrent in Perovskite Microplate Photodetector".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 9.17(2018):5017-5022.

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来源：大连化学物理研究所

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