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Pulsed Laser Deposition of Cadmium Stannate, a Spinel-Type Transparent Conducting Oxide

Published online by Cambridge University Press:  21 February 2011

Jeanne M. Mcgraw ,
Philip A. Parilla ,
Douglas L. Schulz ,
Jeffrey Alleman ,
Xuanzhi Wu ,
William P. Mulligan ,
David S. Ginley  and
Timothy J. Coutts
Jeanne M. Mcgraw
Affiliation:
Colorado School of Mines, Golden, CO 80401
Philip A. Parilla
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401
Douglas L. Schulz
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401
Jeffrey Alleman
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401
Xuanzhi Wu
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401
William P. Mulligan
Affiliation:
Colorado School of Mines, Golden, CO 80401
David S. Ginley
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401
Timothy J. Coutts
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401
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Abstract

We present the first report of the synthesis of Cd2SnO4 films by pulsed laser deposition. Controlling the substrate temperature and the ambient atmosphere allowed for the synthesis of films ranging from amorphous to crystalline with some crystalline films exhibiting strong texture. Highly transparent films with large mobilities were obtained for both the amorphous and crystalline films. Sheet resistances of 15.5 Ω/square and mobilities of up to 44.7 cm2/V.s were observed. Typical carrier concentrations showed the crystalline films to be degenerate with carrier concentrations of 5 х 1020cm-3 while amorphous films had carrier concentrations lower by about half. Band gaps for the films ranged between 3.1-3.8 eV. these films are attractive candidates for TCO applications in thin film photovoltaic devices, flat panel displays, electrochromic windows, and as plasma filters for thermophotovoltaic devices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 388: Symposium Q – Film Synthesis and Growth Using Energetic Beams , 1995 , 51
Copyright
Copyright © Materials Research Society 1995

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