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Electronic Doping in Porous Nano-Crystalline ZnO Films

Published online by Cambridge University Press:  10 February 2011

R. Könenkamp  and
A. Wahi
R. Könenkamp
Affiliation:
Hahn-Meitner Institut Berlin, 14109 Berlin, Germany
A. Wahi
Affiliation:
Hahn-Meitner Institut Berlin, 14109 Berlin, Germany
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Abstract

Porous nano-crystalline ZnO films were prepared in sol-gel technique, using spin coating and sintering at modest temperatures. The films consist of loosely-packed ZnO clusters. For films with clusters smaller than ∼ 50 Å we find a blue-shifted absorption edge indicative of quantum confinement in the clusters. The electronic properties of the films are largely controlled by surface processes. We have studied photo-induced conductance changes due to CO2 desorption using mass spectrometry and concomitant electrical measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 431: Symposium P – Microporous and Macroporous Materials , 1996 , 467
Copyright
Copyright © Materials Research Society 1996

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