Journal
THIN SOLID FILMS
Volume 520, Issue 4, Pages 1274-1277Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2011.04.196
Keywords
Amorphous indium zinc oxide; Transparent conductive oxide; Pulsed laser deposition; Thin films
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Indium zinc oxide films were grown from targets with two different In atomic concentration [In/(In+Zn)] of 40% and 80% by the pulsed laser deposition technique on glass substrates from room temperature up to 100 degrees C. X-ray diffraction and reflectometry investigations showed that films were amorphous and dense. Thin films (thickness<100 nm) exhibited higher optical transmittance and resistivities than thick films (thickness>1000 nm), probably caused by a significant decrease of oxygen vacancies due to atmosphere exposure. Films deposited from the In rich target under an oxygen pressure of 1 Pa exhibited optical transmittance higher than 85%, resistivities around 5-7x10(-4) Omega cm and mobilities in the 47-54 cm(2)/V s range. (C) 2011 Elsevier B. V. All rights reserved.
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