Accession Number:

ADA595963

Title:

High Performance Multiwall Carbon Nanotube Bolometers

Descriptive Note:

Journal article

Corporate Author:

KANSAS UNIV LAWRENCE DEPT OF PHYSICS AND ASTRONOMY

Report Date:

2010-10-21

Pagination or Media Count:

8.0

Abstract:

High infrared bolometric photoresponse has been observed in multiwall carbon nanotube MWCNT films at room temperature. The observed detectivity D in exceeding 3.3 x 1000000 cm Hz12 W on MWCNT film bolometers is a factor of 7 higher than that obtained on the single-wall CNT SWCNT counterparts. The response time of about 1 2 ms on MWCNT bolometers is more than an order of magnitude shorter than that of SWCNT bolometers. The observed high performance may be attributed to the naturally suspended inner-shell structure in a MWCNT, which enhances photon absorption and restricts bolometer external thermal link to environment.

Subject Categories:

  • Refractory Fibers
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE