Carbon nanotube-polymer nanocomposite infrared sensor.
The infrared photoresponse in the electrical conductivity of single-walled carbon nanotubes (SWNTs) is dramatically enhanced by embedding SWNTs in an electrically and thermally insulating polymer matrix. The conductivity change in a 5 wt % SWNT-polycarbonate nanocomposite is significant (4.26%) and sharp upon infrared illumination in the air at room temperature. While the thermal effect predominates in the infrared photoresponse of a pure SWNT film, the photoeffect predominates in the infrared photoresponse of SWNT-polycarbonate nanocomposites.
Pradhan
Basudev
B
Department of Chemistry and Biochemistry, University of Wisconsins-Milwaukee, Milwaukee, WI 53211, USA.
Setyowati
Kristina
K
Liu
Haiying
H
Waldeck
David H
DH
Chen
Jian
J
D007259:Infrared Rays; D008855:Microscopy, Electron, Scanning; D037742:Nanotubes, Carbon; D011108:Polymers / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
D037742:Nanotubes, Carbon; D011108:Polymers