High-Gain and Low-Driving-Voltage Photodetectors Based on Organolead Triiodide Perovskites

被引：808

作者：

Dong, Rui ^{[1
]}

Fang, Yanjun ^{[1
]}

Chae, Jungseok ^{[2
,3
]}

Dai, Jun ^{[4
]}

Xiao, Zhengguo ^{[1
]}

Dong, Qingfeng ^{[1
]}

Yuan, Yongbo ^{[1
]}

Centrone, Andrea ^{[2
]}

Zeng, Xiao Cheng ^{[1
,4
]}

Huang, Jinsong ^{[1
]}

机构：

[1] Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE 68588 USA

[2] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA

[3] Univ Maryland, Maryland Nanoctr, College Pk, MD 20742 USA

[4] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 11期

基金：

美国国家科学基金会;

关键词：

SOLAR-CELLS; TEMPERATURE; NANOSCALE; POLYMER;

D O I：

10.1002/adma.201405116

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Solution-processed organometal trihalide perovskite photodetectors show a high photoconductive gain of above 400 across the UV to NIR range at a very low bias of 1 V. The charge traps caused by large concentrations of Pb2+ cations at the top surface of the perovskite film are critical for achieving high gain in these devices via a trapped-hole-induced electron injection mechanism.

引用

页码：1912 / +

页数：8

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