期刊
CERAMICS INTERNATIONAL
卷 41, 期 9, 页码 10461-10466出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.04.122
关键词
Hydrothermal crystal growth; Semiconducting II-VI materials; ZnO double disks
资金
- National Natural Science Foundation of China [11174241]
- Key Laboratory of Nanodevices and Applications
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences [12CS03]
Double disks shaped ZnO microstructures have been synthesized by one-step CTAB assisted hydrothermal methods at 90 degrees C with different growth time. The scanning electron microscopy (SEM) and X-ray diffraction (XRD) results disclosed the double disks shaped morphology and hexagonal wurtzite structures. With the increase of growth time, the strain along a axis becomes relaxed while that along c axis becomes more compressed. This made the increase of defect-related visible emissions and the decrease of UV near-band-gap emissions. Based on the experimental results, surfactant (CTAB) and growth temperature are suggested as the key factors for the formation of the double disks shaped ZnO. A possible growth mechanism to form the double disks shaped ZnO have been provided. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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