Distinct Exciton Dissociation Behavior of Organolead Trihalide Perovskite and Excitonic Semiconductors Studied in the Same System

被引：72

作者：

Hu, Miao ^{[1
,2
]}

Bi, Cheng ^{[1
,2
]}

Yuan, Yongbo ^{[1
,2
]}

Xiao, Zhengguo ^{[1
,2
]}

Dong, Qingfeng ^{[1
,2
]}

Shao, Yuchuan ^{[1
,2
]}

Huang, Jinsong ^{[1
,2
]}

机构：

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

[2] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

来源：

SMALL | 2015年 / 11卷 / 18期

基金：

美国国家科学基金会;

关键词：

OPEN-CIRCUIT-VOLTAGE; HYBRID SOLAR-CELLS; HALIDE PEROVSKITE; EFFICIENCY; ORIGIN; TRANSPORT; CHLORIDE; CL;

D O I：

10.1002/smll.201402905

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The nonexcitonic character for organometal trihalide perovskites is demonstrated by examining the field-dependent exciton dissociation behavior. It is found that photogenerated excitons can be effectively dissociated into free charges inside perovskite without the assistance of charge extraction layer or external field, which is a stark contrast to the charge-separation behavior in excitonic materials in the same photovoltaic operation system. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：2164 / 2169

页数：6

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