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Characteristics of direct-patternable SnO2:Pt nanocomposite thin films fabricated by photochemical metal-organic deposition

Published online by Cambridge University Press:  17 October 2011

Yong-June Choi ,
Chae-Jung Kim  and
Hyung-Ho Park
Yong-June Choi
Affiliation:
Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea
Chae-Jung Kim
Affiliation:
Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea
Hyung-Ho Park*
Affiliation:
Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

We evaluated the optical and electrical characteristics of SnO2 hybrid films with various contents (0, 0.05, 0.1, 0.15, and 0.2 at.%) of Pt nanoparticles. The Pt nanoparticles were synthesized by a methanol reduction method, and their size was restricted to an average of 3 nm using poly(N-vinyl-2-pyrrolidone) as a protecting agent. An enhancement in electrical properties was observed due to the addition of Pt nanoparticles; the lowest resistivity (1.36 × 10−2 Ω·cm) and the highest figure of merit (1.18 × 10−4 Ω−1) were obtained with SnO2 film containing 0.15 at.% Pt nanoparticles after annealing at 600 °C, and the average transmittance in the visible region was 86.61%. Well-defined 30-μm-wide direct-patterned SnO2 films containing Pt nanoparticles were formed by photochemical metal-organic deposition through a simple process including a photosensitive starting precursor, ultraviolet exposure, and removal of the unexposed area with solvent rinsing.

Keywords

Transparent conductorThin filmMetalorganic deposition
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 22 , 28 November 2011 , pp. 2860 - 2866
Copyright
Copyright © Materials Research Society 2011

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