大直径半导体单壁碳纳米管半透明薄膜中红外透过率的增强电光调制。

Enhanced electromodulation of infrared transmittance in semitransparent films of large diameter semiconducting single-walled carbon nanotubes.

机构信息

Center for Nanoscale Science and Engineering, Departments of Physics and Astronomy, Chemistry and Chemical and Environmental Engineering, University of California, Riverside, Riverside, California 92521, USA.

出版信息

Nano Lett. 2010 Mar 10;10(3):937-42. doi: 10.1021/nl9038423.

DOI:10.1021/nl9038423

PMID:20121064

Abstract

We report a comprehensive study of the gate-induced electromodulated transmittance of infrared light by single-walled carbon nanotube (SWNT) thin films. The observed electromodulation is significantly enhanced by utilizing large diameter SWNTs, increasing the ratio of semiconducting to metal SWNTs, and by decreasing the SWNT film thickness. The amplitude of the effect reported herein ( approximately 7%) is more than an order of magnitude larger than in previous SWNT thin film solid state devices.

摘要

我们报告了一项关于单壁碳纳米管（SWNT）薄膜的栅极诱导红外光电光调制透射率的综合研究。通过利用大直径 SWNTs、增加半导体到金属 SWNTs 的比例以及减小 SWNT 薄膜厚度，观察到的电光调制得到了显著增强。本文报道的效应幅度（约 7%）比以前的 SWNT 薄膜固态器件大一个数量级以上。