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13 June 2023 Evaluation and modeling of electrical conductivity of semi-conducting carbon nanotube networks for bolometric infrared detectors
T. Tanaka, T. Shibuya, N. Tonouchi, T. Miyamoto, M. Kanaori, N. Fukuda, R. Yuge
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Proceedings Volume 12534, Infrared Technology and Applications XLIX; 125341U (2023) https://doi.org/10.1117/12.2663010
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States
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Abstract
Uncooled bolometer-type infrared detector's performance is strongly limited by temperature coefficient of resistance (TCR) of the resistor. Single-walled carbon nanotubes (SWCNTs) are expected as promising materials with high TCR, and high chemical stability. In a preliminary experiment TCR of semiconducting CNT networks extracted by using non-ionic surfactants was confirmed to be -6%/K. Electric properties of SWCNT networks were strongly affected by its morphology. Optimization of SWCNT network morphology is important to maximize the detectability of SWCNT bolometers.
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T. Tanaka, T. Shibuya, N. Tonouchi, T. Miyamoto, M. Kanaori, N. Fukuda, and R. Yuge "Evaluation and modeling of electrical conductivity of semi-conducting carbon nanotube networks for bolometric infrared detectors", Proc. SPIE 12534, Infrared Technology and Applications XLIX, 125341U (13 June 2023); https://doi.org/10.1117/12.2663010
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KEYWORDS
Resistance
Semiconductors
Bolometers
Electrical conductivity
Infrared detectors
Resistors
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