Wide band gap Cd 0.83 Mg 0.15 Al 0.02 O thin films by pulsed laser deposition

Abstract

Magnesium and aluminum doped CdO thin films were deposited on quartz substrate using pulsed laser deposition technique. Magnesium is used to widen the band gap and aluminum is used to increase carrier concentration of CdO films. The effect of growth temperature on structural, optical, and electrical properties was studied. These films are crystalline in nature and their preferred orientation depends on growth temperature. These films are highly transparent (∼86%) in visible region. The band gap of the films varies from 3.1 eV to 3.4 eV. The electrical conductivity and carrier concentration were found to decrease with increase in growth temperature.

Department(s)

Physics, Astronomy, and Materials Science
JVIC

Document Type

Article

DOI

https://doi.org/10.1016/j.apsusc.2008.11.039

Keywords

Aluminum oxide, Band gap, Cadmium oxide, Hall effect, Magnesium oxide, Mobility, Pulsed laser deposition

Publication Date

2-1-2009

Journal Title

Applied Surface Science

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