Mid‐infrared detectors based on carbon nanotube films

Autor: Sylvain Maine, Riad Haïdar, Charlie Koechlin, Nathalie Bardou, Jean-Luc Pelouard, Brigitte Attal-Trétout, Romain Fleurier, Philippe Mérel, Christophe Dupuis, Joël Deschamps, Annick Loiseau
Rok vydání: 2010
Předmět:
Zdroj: physica status solidi c. 7:2743-2746
ISSN: 1610-1642
1862-6351
DOI: 10.1002/pssc.200983827
Popis: In this paper we report the fabrication and characterization of single wall carbon nanotube film based devices. Carbon nanotubes (CNT) film is deposited on a silica substrate and usual clean room processes have been used to make Pt-electrodes on top of it and to pattern the CNT film. The obtained devices have been used to measure the evolution of the temperature coefficient of resistance (TCR) as a function of temperature. At room temperature the TCR is –0.2%K-1 and becomes even more important as the temperature goes down. Moreover the optical response in atmospheric band II and band III have been investigated at room temperature showing a variation of the device resistance up to 0.2% for an irradiance of ∼100 mW/cm2 in the 3–5 µm range. Such results are very promising for application of CNT films in bolometers for thermal infrared detection (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze: OpenAIRE
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