Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9675992 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2005 | 5 Pages |
Abstract
The surface potential of metal/polyimide (PI) ultra-thin film, prepared by spin-coat technique, was measured by Kelvin probe method at a temperature of 16âK. The photoirradiation effect on the surface potential was examined as the functions of the wavelength and irradiation time. It was found that the wavelength of 400ânm photoirradiation caused the charge injection from the metal electrode to PI films, rather than that of 600ânm. The behaviors of the metal/PI interfacial space charge estimated by the surface potential measurement well explained the photocurrent observed in the current-voltage characteristics of Au/PI/Al junctions, and the threshold voltage shift appeared in the Coulomb staircase of Au/PI:C60/Al junction.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Yutaka Noguchi, Takaaki Manaka, Mitsumasa Iwamoto,