Persistent photoconductivity in chemically modified single-wall carbon nanotubes

RF Khairoutdinov, LV Doubova…

Index: Khairoutdinov, Rafail F.; Doubova, Larissa V.; Haddon, Robert C.; Saraf, Laxmikant Journal of Physical Chemistry B, 2004 , vol. 108, # 52 p. 19976 - 19981

Full Text: HTML

Citation Number: 46

Abstract

Control of the conductivity of single wall carbon nanotubes (SWNTs) is crucial for the use of carbon nanotubes in molecular electronics. We report a new fundamental characteristic of semiconducting SWNTs: the persistent photoconductivity of chemically modified carbon nanotube films. Illumination of carboxylated semiconducting SWNTs with ultraviolet or visible light causes a persistent decrease in the conductivity of semiconducting films. The ...