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

被引：40

作者：

Yang, Bin ^{[1
,2
]}

Chen, Junsheng ^{[1
,3
]}

Shi, Qi ^{[3
]}

Wang, Zhengjun ^{[3
]}

Gerhard, Marina ^{[3
]}

Dobrovolsky, Alexander ^{[3
]}

Scheblykin, Ivan G. ^{[3
]}

Karki, Khadga Jung ^{[3
]}

Han, Keli ^{[1
]}

Pullerits, Tonu ^{[3
]}

机构：

[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

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2018年 / 9卷 / 17期

基金：

欧盟地平线“2020”; 瑞典研究理事会; 中国国家自然科学基金;

关键词：

SINGLE-CRYSTALS; DIFFUSION LENGTHS; SOLAR-CELLS; BROMIDE PEROVSKITES; TRANSPORT LENGTHS; CARRIER DIFFUSION; NANOSTRUCTURES; CH3NH3PBI3; ABSORPTION; MICROLASERS;

D O I：

10.1021/acs.jpclett.8b02250

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

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.

引用

页码：5017 / 5022

页数：11

共 53 条

[1] Fast and Sensitive Solution-Processed Visible-Blind Perovskite UV Photodetectors [J].

Adinolfi, Valerio ;

Ouellette, Olivier ;

Saidaminov, Makhsud I. ;

Walters, Grant ;

Abdelhady, Ahmed L. ;

Bakr, Osman M. ;

Sargent, Edward H. .

ADVANCED MATERIALS, 2016, 28 (33) :7264-+

[2] Evidence of High-Order Nonlinearities in Supercontinuum White-Light Generation from a Gold Nanofilm [J].

Chen, Junsheng ;

Krasavin, Alexey ;

Ginzburg, Pavel ;

Zayats, Anatoly V. ;

Pullerits, Tonu ;

Karki, Khadga Jung .

ACS PHOTONICS, 2018, 5 (05) :1927-1932

[3] The optoelectronic role of chlorine in CH3NH3PbI3(Cl)-based perovskite solar cells [J].

Chen, Qi ;

Zhou, Huanping ;

Fang, Yihao ;

Stieg, Adam Z. ;

Song, Tze-Bin ;

Wang, Hsin-Hua ;

Xu, Xiaobao ;

Liu, Yongsheng ;

Lu, Shirong ;

You, Jingbi ;

Sun, Pengyu ;

Mckay, Jeff ;

Goorsky, Mark S. ;

Yang, Yang .

NATURE COMMUNICATIONS, 2015, 6

[4] Ultrahigh-Responsivity Photodetectors from Perovskite Nanowire Arrays for Sequentially Tunable Spectral Measurement [J].

Deng, Wei ;

Huang, Liming ;

Xu, Xiuzhen ;

Zhang, Xiujuan ;

Jin, Xiangcheng ;

Lee, Shuit-Tong ;

Jie, Jiansheng .

NANO LETTERS, 2017, 17 (04) :2482-2489

[5] Impact of microstructure on local carrier lifetime in perovskite solar cells [J].

deQuilettes, Dane W. ;

Vorpahl, Sarah M. ;

Stranks, Samuel D. ;

Nagaoka, Hirokazu ;

Eperon, Giles E. ;

Ziffer, Mark E. ;

Snaith, Henry J. ;

Ginger, David S. .

SCIENCE, 2015, 348 (6235) :683-686

[6] Defect-induced local variation of crystal phase transition temperature in metal-halide perovskites [J].

Dobrovolsky, Alexander ;

Merdasa, Aboma ;

Unger, Eva L. ;

Yartsev, Arkady ;

Scheblykin, Ivan G. .

NATURE COMMUNICATIONS, 2017, 8

[7] Electron-hole diffusion lengths > 175 μm in solution-grown CH3NH3PbI3 single crystals [J].

Dong, Qingfeng ;

Fang, Yanjun ;

Shao, Yuchuan ;

Mulligan, Padhraic ;

Qiu, Jie ;

Cao, Lei ;

Huang, Jinsong .

SCIENCE, 2015, 347 (6225) :967-970

[8] A self-powered organolead halide perovskite single crystal photodetector driven by a DVD-based triboelectric nanogenerator [J].

Fang, Huajing ;

Li, Qiang ;

Ding, Jie ;

Li, Nan ;

Tian, He ;

Zhang, Lijing ;

Ren, Tianling ;

Dai, Jiyan ;

Wang, Liduo ;

Yan, Qingfen .

JOURNAL OF MATERIALS CHEMISTRY C, 2016, 4 (03) :630-636

[9] Quantification of re-absorption and re-emission processes to determine photon recycling efficiency in perovskite single crystals [J].

Fang, Yanjun ;

Wei, Haotong ;

Dong, Qingfeng ;

Huang, Jinsong .

NATURE COMMUNICATIONS, 2017, 8

[10] Solution Growth of Single Crystal Methylammonium Lead Halide Perovskite Nanostructures for Optoelectronic and Photovoltaic Applications [J].

Fu, Yongping ;

Meng, Fei ;

Rowley, Matthew B. ;

Thompson, Blaise J. ;

Shearer, Melinda J. ;

Ma, Dewei ;

Hamers, Robert J. ;

Wright, John C. ;

Jin, Song .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (17) :5810-5818

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