| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8148602 | Journal of Crystal Growth | 2018 | 12 Pages |
Abstract
Bulk ZnO crystals were grown by self-selecting CVT method using carbon as the transport agent. The crystal growth process took place on the top of the polycrystalline source material, and deep-red colored ZnO crystals of several millimeters were obtained. The as-grown crystals were characterized by X-ray diffraction (XRD), Energy Dispersive Spectrometer (EDS), Raman scattering (RS) spectroscopy, visible-near infrared (VIS-NIR) spectrophotometer and room temperature photoluminescence (PL) spectroscopy. XRD results indicate good crystallinity of the ZnO crystal. The EDS analysis shows that the crystal has a stoichiometry ratio Zn: Oâ¯=â¯52: 48. The results suggest the existence of native defects of oxygen vacancies (OV) in the as-grown ZnO samples, which is caused by the stoichiometry shift to Zn-rich.
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Condensed Matter Physics
Authors
Long Fan, Tao Jiang, TingTing Xiao, Jie Chen, Liping Peng, Xuemin Wang, Dawei Yan, Weidong Wu,