Abstract
CVDZnS was successfully prepared by chemical vapor deposition (CVD) and treated with hot isostatic pressure (HIP) and non-hot isostatic pressure (HIP). Both materials were characterized by X-ray diffraction, showing that CVDZnS is polycrystalline with a small amount of hexagonal crystal structure and HIPZnS is completely isotropic cubic structure. Besides, it also indicates that the preferred orientation of HIPZnS is sphalerite (111) for perpendicular or parallel to the growth direction. Surface morphology is performed by scanning electron microscopy and metalloscope and it is found that the S or P-orientation grain size after HIP treatment increased significantly. The average transverse and longitudinal grain size of HIPZnS in S-orientation is 55–60 μm, and the average transverse and longitudinal grain size in P-orientation is 40–45 μm. EDTA test showed the Zn/S ratio of CVDZnS is 0.9449 or 0.9511, and the Zn/S ratio of HIPZnS is 0.9899 or 0.9935, indicating that hot isostatic pressing is more likely to promote the secondary growth of ZnS toward stoichiometry. Optical properties of CVDZnS and HIPZnS were carried out by FTIR Spectrometer, showing that HIPZnS in S-orientation has an excellent optical performance at 2–13 μm compared to the P-orientation and an average transmittance of ≥ 72.5% at 2–10 μm.
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Guo, L., Wei, N., Yang, H. et al. Structural, morphological, optical properties of CVDZnS and HIPZnS. Appl. Phys. A 126, 108 (2020). https://doi.org/10.1007/s00339-019-3239-8
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DOI: https://doi.org/10.1007/s00339-019-3239-8