Carbon nanotube-based color IR detectors

Ning Xi; King Wai Chiu Lai; Jiangbo Zhang; Yilun Luo; Hongzhi Chen; Carmen K. M. Fung

doi:10.1117/12.782250

16 April 2008 Carbon nanotube-based color IR detectors

Ning Xi, King Wai Chiu Lai, Jiangbo Zhang, Yilun Luo, Hongzhi Chen, Carmen K. M. Fung

Proceedings Volume 6940, Infrared Technology and Applications XXXIV; 694017 (2008) https://doi.org/10.1117/12.782250
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

Carbon nanotube (CNT) has been found to be one of the promising materials for efficient detection and used in different nanoelectronic devices due to its unique electrical properties. Recently, the applications of nanostructural material to infrared (IR) sensors are considered. Our group developed a color detector using a single CNT and demonstrated the good sensitivity of CNT to the infrared light in different ranges. In this report, the CNT bandgap engineering was discussed. The design, fabrication and experimental result of the CNT based color detector were described. The results indicated the heterogeneous electrode structure increased the signal-to-dark current ratio. Moreover, the CNT based color detectors were capable to sense near-infrared signal and middle-infrared signal in room temperature environment.

Citation Download Citation

Ning Xi, King Wai Chiu Lai, Jiangbo Zhang, Yilun Luo, Hongzhi Chen, and Carmen K. M. Fung "Carbon nanotube-based color IR detectors", Proc. SPIE 6940, Infrared Technology and Applications XXXIV, 694017 (16 April 2008); https://doi.org/10.1117/12.782250

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