Journal
CURRENT APPLIED PHYSICS
Volume 9, Issue -, Pages S262-S265Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cap.2009.01.031
Keywords
Magnetron sputtering; Transparent conductive oxide; Indium tin oxide; Electrical and structural properties
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ITO films were deposited using a RF superimposed DC magnetron sputtering system with an ITO (90.0 wt% In2O3 and 10.0 wt% SnO2) single ceramic target at either room temperature or the crystallization temperature of ITO films (170 degrees C). The total sputtering power (DC + RF) was maintained at 70 W, and the RE portion of the total power was varied from 0% to 100%. The discharge voltage and deposition rate decreased with increasing RF portion of the total power. The (222) X-ray diffraction peak showed the highest intensity at a RF/(RF + DC) power ratio of 50% with a total power of 70 W. The ITO film deposited at a RF/(RF + DC) power ratio of 50% at 170 degrees C showed relatively low resistivity (2.52 x 10(-4) Omega cm). (C) 2009 Elsevier B.V. All rights reserved.
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