Metal-like conductivity in transparent Al:ZnO films

被引：130

作者：

Bamiduro, O. ^{[1
]}

Mustafa, H. ^{[1
]}

Mundle, R. ^{[1
]}

Konda, R. B. ^{[1
]}

Pradhan, A. K. ^{[1
]}

机构：

[1] Norfolk State Univ, Ctr Mat Res, Norfolk, VA 23504 USA

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 25期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1063/1.2749836

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter reports on the metal-like conductivity down to 125 K in highly crystalline transparent (>= 85% in the visible region) Al:ZnO films grown on sapphire and glass substrates by pulsed-laser deposition technique. Significantly different surface morphologies were found on both types of films. Temperature dependent resistivity measurements of the films grown at 450 degrees C on sapphire and glass show metal-like conductivity with electrical resistivity, similar to 1.77x10(-4) and similar to 3.92x10(-4) Omega cm, respectively, at room temperature followed by either a residual conductivity or a metal-semiconductor transition at low temperature due to the localization effect caused by the defects. (c) 2007 American Institute of Physics.

引用

页数：3

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