Electron and hole drift mobility measurements on methylammonium lead iodide perovskite solar cells

被引：61

作者：

Maynard, Brian ^{[1
]}

Long, Qi ^{[1
]}

Schiff, Eric A. ^{[1
]}

Yang, Mengjin ^{[2
]}

Zhu, Kai ^{[2
]}

Kottokkaran, Ranjith ^{[3
]}

Abbas, Hisham ^{[3
]}

Dalal, Vikram L. ^{[3
]}

机构：

[1] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA

[2] Natl Renewable Energy Lab, Golden, CO 80401 USA

[3] Iowa State Univ, Ames, IA 50011 USA

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 17期

基金：

美国国家科学基金会;

关键词：

TRANSPORT;

D O I：

10.1063/1.4948344

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report nanosecond domain time-of-flight measurements of electron and hole photocarriers in methylammonium lead iodide perovskite solar cells. The mobilities ranged from 0.06 to 1.4 cm(2)/Vs at room temperature, but there is little systematic difference between the two carriers. We also find that the drift mobilities are dispersive (time-dependent). The dispersion parameters are in the range of 0.4-0.7, and they imply that terahertz domain mobilities will be much larger than nanosecond domain mobilities. The temperature-dependences of the dispersion parameters are consistent with confinement of electron and hole transport to fractal-like spatial networks within nanoseconds of their photogeneration. Published by AIP Publishing.

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页数：4

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