Three-Dimensional in Situ Photocurrent Mapping for Nanowire Photovoltaics

被引：33

作者：

Parkinson, Patrick ^{[1
]}

Lee, Yu-Heng ^{[1
]}

Fu, Lan ^{[1
]}

Breuer, Steffen ^{[1
]}

Tan, Hark Hoe ^{[1
]}

Jagadish, Chennupati ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, Canberra, ACT 0200, Australia

来源：

NANO LETTERS | 2013年 / 13卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

GaAs; nanowire; photovoltaic; photocurrent mapping; two-photon optical beam induced current (TOBIC); CORE-SHELL NANOWIRES;

D O I：

10.1021/nl304170q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Devices based upon semiconductor nanowires provide many well-known advantages for next-generation photovoltaics, however, limited experimental techniques exist to determine essential electrical parameters within these devices. We present a novel application of a technique based upon two-photon induced photocurrent that provides a submicrometer resolution, three-dimensional reconstruction of photovoltaic parameters. This tool is used to characterize two GaAs nanowire-based devices, revealing the detail of current generation and collection, providing a path toward achieving the promise of nanowire-based photovoltaic devices.

引用

收藏

页码：1405 / 1409

页数：5

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