Photoluminescence enhancement of hexagonal-phase ZnS:Mn nanostructures using 1-thioglycolic acid

Abstract

Hexagonal wurtzite ZnS:Mn 2? nanostructures were synthesized at lower temperature (80°C) by chemical method in an air atmosphere using 1-thioglycolic acid (TGA) as a stabilizing agent. It is a simple, highly efficient and energy-saving method for large-scale synthesis of hexagonal ZnS:Mn 2? nanoparticles at lower temperature. Structural and optical properties of the samples were investigated. An optimum concentration of TGA was selected through optical PL study.

Review of Metal Sulfide Nanostructures and their Applications

“…The cubic structure of zinc blende is more stable than the hexagonal structure of wurtzite achieved at high temperature (>1000). Various efforts have been made to monitor the morphology and crystallite size of ZnS NSs. − Different techniques were employed for the synthesis of these structures, including hydrothermal, template route, ultrasonic, template-free, solid–liquid reaction, solvothermal, coprecipitation, and electrospray pyrolysis . The appealing properties proposed by ZnS NPs in contrast to bulk are as follows: (a) excessive optical absorption, (b) increased surface to volume ratio, (c) effect of quantum tunneling at a microscopic level, and (d) decreased melting point because of its remarkable properties, such as nontoxicity and thermal stability.…”