Synthesis and characterization of CdS nanoparticles |
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Authors: | R Bhattacharya T K Das S Saha |
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Affiliation: | (1) Department of Physics and Technophysics, Vidyasagar University, Midnapur, Paschim Medinipur, West Bengal, 721102, India |
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Abstract: | In the present work a chemical reduction method is followed to grow CdS nanoparticles at room temperature with varying the
amount of reducing agent sodiumborohydride. The dispersed samples in ethanol are characterized using electron diffraction
techniques. Simultaneously optical absorption, photoluminescence and longtime photorelaxation of these samples are studied
at room temperature. An increase in band gap is observed in each case as compared to bulk CdS. Also particle size decreases
with increased amount of reducing agent. Simultaneously long time relaxation increases with decrease of stoichiometric ratio
of reducing agent. An attempt is made to correlate the structural, optical, electrical and opto-electrical properties. |
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Keywords: | |
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