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
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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). |
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