期刊
SOLID STATE SCIENCES
卷 59, 期 -, 页码 39-43出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2016.07.006
关键词
Semiconductors; Crystal growth; Optical properties; X-ray diffraction; Crystal structure
资金
- Projects of Scientific Research Fund of Hunan Provincial Education Department [14A076, 14C0607]
- Project of Natural Science Foundation of Hunan Province [2016JJ4044]
- Science and Technology Plan Project of Hunan Province [2014FJ3041]
ZnS nanosheets were prepared via egg albumin and microwave-assisted method. The phases, crystalline lattice structures, morphologies, chemical and optical properties were characterized by X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), field-emission scanning electron microscope(FE-SEM), selected area electron diffraction (SAED), Fourier transform infrared (FTIR) spectroscopy, ultravioletevisible (UV-Vis) spectroscopy and fluorescence(FL) spectrometer and growth mechanism of ZnS nanosheets was investigated. The results showed that all samples were pure cubic zinc blende with polycrystalline structure. The width of ZnS nanosheets with a rectangular nanostructure was in the range of 450-750 nm. The chemical interaction existed between egg albumin molecules and ZnS nanoparticles via the amide/carboxylate group. The band gap value calculated was 3.72 eV. The band at around 440 nm was attributed to the sulfur vacancies of the ZnS nanosheets. With increasing volumes of egg albumin, the photoluminescence (PL) intensity of ZnS samples firstly increased and then decreased, attributed to concentration quenching. (C) 2016 Elsevier Masson SAS. All rights reserved.
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