Temperature and Pressure-Mediated Structural Transition of ZnS Nanoparticles
Abstract:We demonstrate that the structural transition of ZnS nanoparticles from sphalerite to wurtzite is influenced by high pressures and temperatures. Under the pressure of 1 GPa, the structural transition of ZnS nanoparticles commences at 250 °C, much lower than that 400–500 °C for ZnS nanoparticles under normal pressures. With the increase of the annealing temperature, the transition is enhanced then inhibited with a maximum transition fraction of 14% at 300 °C and disappears at 500 °C. At the annealing temperature of 300 °C, the structural transition of ZnS nanoparticles keeps almost invariable with the increase of the pressure from 0.6 GPa to 1 GPa. The mechanism for the phenomenon is discussed.
Document Type: Research Article
Publication date: 2012-04-01
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