Zinc blende versus wurtzite ZnS nanoparticles: control of the phase and optical properties by tetrabutylammonium hydroxide

摘要

The influence of tetrabutylammonium hydroxide on the phase composition (cubic zinc blende versushexagonal wurtzite) of ZnS nanoparticles was studied. The ZnS nanoparticles were prepared by a microwaveassistedsolvothermal method, and the phase structure and optical properties along with the growthprocess of ZnS nanoparticles were studied. We report XRD, FE-SEM, EDXS, UV-vis and PL measurements,and first-principles calculations based on TDDFT methods in order to investigate the structural andelectronic properties and the growth mechanism of ZnS nanostructures. The effects as well as themerits of microwave heating on the process and characteristics of the obtained ZnS nanostructures andtheir performance are reported.