The photoresponse of spray-coated and free-standing carbon nanotube films with Schottky contacts

被引：8

作者：

Merchant, C. A. ^{[1
]}

Markovic, N. ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

NANOTECHNOLOGY | 2009年 / 20卷 / 17期

基金：

美国国家科学基金会;

关键词：

PHOTOCONDUCTIVITY; FABRICATION;

D O I：

10.1088/0957-4484/20/17/175202

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report on the photocurrent response of carbon nanotube (CNT) films attached to metallic electrodes. By varying the electrode material, we show that the height of the Schottky barrier at the CNT-metal interface is responsible for the relative magnitude of the photocurrent. We find that the time response associated with this photocurrent varies with the spacing between the electrodes and with the method used to fabricate the CNT film. We also calculate the fill factor associated with these devices to be approximately 25%, independently of the type of the CNT film.

引用

页数：4

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