Faculty Publications
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Item Semiconducting thin films of cadmium selenide have been grown by conventional thermal evaporation technique. The effect of various growth parameters like rate of deposition and deposition temperature has been studied in detail. Films deposited at room temperature are cadmium rich with segregated selenium globules. A deposition temperature of 453K has been found to yield stoichiometric, homogeneous films. The films have been analysed for optical band gap and thermal activation energies. Films of low electrical resistivity have been obtained for possible applications.(Growth and characterization of semiconducting cadmium selenide thin films) Shreekanthan, K.N.; Rajendra, B.V.; Kasturi, V.B.; Shivakumar, G.K.2003Item Photoconductivity has been studied in cadmium selenide thin films prepared by thermal evaporation in vacuum. Attempts have been made to correlate the photoresponse with the deposition conditions. It has been observed that as-grown films, irrespective of the cadmium content, are not photosensitive and that baking in air, especially above 723 K, leads to considerable improvement in the photoconducting properties of cadmium selenide films.(Photoconductivity in vacuum deposited cadmium selenide thin films) Rajendra, B.V.; Kasturi, V.B.; Shivakumar, G.K.2004