Carbon nanotube bolometers

M. Tarasov, J. Svensson, L. Kuzmin, E. E.B. Campbell

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A cryogenic bolometer has been fabricated using a bundle of single-walled carbon nanotubes as absorber. A bolometric response was observed when the device was exposed to radiation at 110 GHz. The temperature response was 0.4 mV/K, with an intrinsic electrical responsivity at low frequency up to 109 V/W and noise equivalent power of 3 × 10-16 W/Hz1/2 at 4.2 K. The response is largest at input power levels of a few femtowatts and decreases inversely proportional to the input power. Low frequency noise shows a 1/f dependence.

Original languageEnglish
Article number163503
JournalApplied Physics Letters
Issue number16
StatePublished - 2007

Bibliographical note

Funding Information:
This work was supported by the Swedish Institute, Vetenskapsrådet, K & A Wallenberg Foundation, and Grant Nos. PGLSS 7812.2006.2, and RFBR 05-02-19650.


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