Abstract—Cadmium telluride (CdTe) thin films are prepared
by the dip-coating deposition technique under atmospheric
pressure at different temperature. The optical band gap
obtained within the range 1.63-1.60 eV. Crystallite sizes are
obtained from XRD that are dependent on composition (Cd/Te)
and baking temperatures. Raman spectra confirms the
presence of transverse (TO) and longitudinal (LO) optical
phonons in the CdTe structure. Films are good photoconductive
in nature and could be used in photovoltaic applications.
Index Terms—CdTe, optical band-gap, photoconductivity.
Sekhar Chandra Ray is with the School of Physics, University of the
Witwatersrand, Private Bag 3, Wits 2050, Johannesburg, South Africa
(e-mail: Sekhar.Ray@wits.ac.za).
Kaushik Mallick is with the Chemistry Department, University of
Johannesburg, Auckland Park - 2006, South Africa (e-mail:
kaushikm@uj.ac.za).
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Cite:Sekhar Chandra Ray and Kaushik Mallick, "Cadmium Telluride (CdTe) Thin Film for Photovoltaic
Applications," International Journal of Chemical Engineering and Applications vol. 4, no. 4 pp. 183-186, 2013.