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Structural and optical properties of electrodeposited Cd0.7Zn0.3Se thin films: Effect of annealing

Chavhan, S.D.; Mane, R.S.; Ganesh, T.; Lee, Wonjoo; Han, Sung-Hwan; Senthilarasu, S.; Lee, Soo-Hyoung

Authors

S.D. Chavhan

R.S. Mane

T. Ganesh

Wonjoo Lee

Sung-Hwan Han

Soo-Hyoung Lee



Abstract

Thin films of cadmium zinc selenide (Cd0.7Zn0.3Se) were deposited on ITO substrate by electrodeposition technique. The as-deposited films were annealed at 200, 300 and 400 °C for 1 h in ambient air. Composition, surface morphology and structural properties of the as-deposited and annealed films were studied by EDX, SEM and X-ray diffraction techniques, respectively. The XRD study showed the cubic to hexagonal structural transition at 300 °C. The lattice parameters of different phases of the material were calculated from the XRD pattern. The optical absorption spectra were recorded within the range of 350–800 nm. The band gap energies of the films decreased from 2.05 to 1.74 eV with respect to annealing temperature.

Journal Article Type Article
Acceptance Date Jun 12, 2008
Online Publication Date Jul 25, 2009
Publication Date Apr 17, 2009
Deposit Date Mar 13, 2023
Print ISSN 0925-8388
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 474
Issue 1-2
Pages 210-213
DOI https://doi.org/10.1016/j.jallcom.2008.06.046
Keywords Cd0.7Zn0.3Se, Electrodeposition, Thin films, Crystalline nature