Journal
JOURNAL OF CRYSTAL GROWTH
Volume 280, Issue 3-4, Pages 425-435Publisher
ELSEVIER
DOI: 10.1016/j.jcrysgro.2005.01.111
Keywords
characterization; liquid phase epitaxy; semiconducting materials
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This paper reports high-temperature (305-523 K) electrical studies of chemical bath deposited copper (1) selenide (Cu2-xSe) and copper (II) selenide (Cu3Se2) thin films. Cu2-xSe and Cu3Se2 have been prepared on glass substrates from the same chemical bath at room temperature by controlling the pH. From X-ray diffraction (XRD) profiles, it has been found that Cu2-xSe and Cu3Se2 have cubic and tetragonal structures, respectively. The composition of the chemical constituent in the films has been confirmed from XRD data and energy-dispersive X-ray analysis (EDAX). It has been found that both phases of copper selenide thin films have thermally activated conduction in the high-temperature range. In this paper we also report the variation of electrical parameters with film thickness and the applied voltage. (c) 2005 Elsevier B.V. All rights reserved.
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