Morphological and Optical Investigation of Pure and Triethylamine Modified ZnS

Abstract

Semiconductor nanoparticles are promising candidates for optoelectronic devices, sensors and display devices due to their size dependent unique properties which can be varied. ZnS a class of wide bandgap II-IV semiconductor (3.65 eV) is a novel class of luminescent material that exhibits excellent physical and chemical properties when reduced to nanodimensions. A facile chemical route of synthesis of pure ZnS and triethylamine capped ZnS is reported. The structural and phase information is obtained from XRD studies. The optical properties of the prepared samples were measured using UV-VIS and photoluminescence spectroscopies. The UV-VIS studies shows a blue shift compared to its bulk counterpart. The photoluminescence signal intensities of doped ZnS shows enhancement compared to undoped samples. The FTIR studies confirm the presence of triethylamine in the synthesized product. The HRTEM images shows sheet like morphology when doped with triethylamine. In this paper we report a general strategy for the synthesis of functional nanomaterials.