Room temperature infrared imaging sensors based on highly purified semiconducting carbon nanotubes

doi:10.1039/c4nr07650h

CORC > 北京大学 > 信息科学技术学院

	Room temperature infrared imaging sensors based on highly purified semiconducting carbon nanotubes
	Liu Yang ; Wei Nan ; Zhao Qingliang ; Zhang Dehui ; Wang Sheng ; Peng Lian-Mao
刊名	nanoscale
	2015
DOI	10.1039/c4nr07650h
英文摘要	High performance infrared (IR) imaging systems usually require expensive cooling systems, which are highly undesirable. Here we report the fabrication and performance characteristics of room temperature carbon nanotube (CNT) IR imaging sensors. The CNT IR imaging sensor is based on aligned semiconducting CNT films with 99% purity, and each pixel or device of the imaging sensor consists of aligned strips of CNT asymmetrically contacted by Sc and Pd. We found that the performance of the device is dependent on the CNT channel length. While short channel devices provide a large photocurrent and a rapid response of about 110 μs, long channel length devices exhibit a low dark current and a high signal-to-noise ratio which are critical for obtaining high detectivity. In total, 36 CNT IR imagers are constructed on a single chip, each consists of 3 × 3 pixel arrays. The demonstrated advantages of constructing a high performance IR system using purified semiconducting CNT aligned films include, among other things, fast response, excellent stability and uniformity, ideal linear photocurrent response, high imaging polarization sensitivity and low power consumption.; SCI(E); EI; PubMed; 0; ARTICLE; shengwang@pku.edu.cn; lmpeng@pku.edu.cn; 15; 6805-12; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/188203]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Liu Yang,Wei Nan,Zhao Qingliang,et al. Room temperature infrared imaging sensors based on highly purified semiconducting carbon nanotubes[J]. nanoscale,2015.
APA	Liu Yang,Wei Nan,Zhao Qingliang,Zhang Dehui,Wang Sheng,&Peng Lian-Mao.(2015).Room temperature infrared imaging sensors based on highly purified semiconducting carbon nanotubes.nanoscale.
MLA	Liu Yang,et al."Room temperature infrared imaging sensors based on highly purified semiconducting carbon nanotubes".nanoscale (2015).