Abstract
Cadmium Telluride (CdTe) nanoparticles have been synthesized by a simple and cost effective route. Thevetia peruviana leaf extract has been used as a capping agent at room temperature. The prepared CdTe nanoparticles are characterized structurally through XRD, TEM and AFM. The XRD pattern confirmed the formation of mixture of cubic and hexagonal structure of CdTe nanoparticles. From TEM study, the average particle size was found to be within 4 –6 nm. The synthesized nanoparticles are characterized optically by Optical Absorption, Photoluminescence (PL) spectra study. PL spectra indicate the luminescence from band edge since it is close to the band-gap as determined from optical absorption. The zeta potential of green synthesized CdTe nanoparticles determines its stability. FTIR of CdTe nanoparticles and Thevetia peruviana leave extract are performed. Dark conductivity and photoconductivity study determines the photosensitivity and relaxation time of CdTe film grown on glass slide. Low cost dye sensitized solar cell have been fabricated and characterized through J-V study atdark and under illumination.
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