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Catalyst-free synthesis of ZnO microrod arrays on SiC substrate and their tunable photoluminescence by erosion process |
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| Authors: | Kaixing ZhuWenjun Wang Xiaolong ChenJun Liu Bo SongLiangbao Jiang Jiangang GuoJinyang Cheng |
| Affiliation: | a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China b Center for Composite Materials, Harbin Institute of Technology, Harbin 150080, China c Beihang University, XueYuan Road No. 37, Haidian District, Beijing 100191, China |
| Abstract: | We present here the results on the preparation and characterization of highly oriented ZnO microrods fabricated on SiC substrate via a vapor solid route. These ZnO microrods grow along the c-axis perpendicularly to the substrate and are well separated from each other. Photoluminescence (PL) due to the band-gap emission (centered at 380 nm) and defect-related deep band emission (centered at 530 nm) were observed. Tunable PL intensities of these two bands were achieved by acid etching for varying durations. |
| Keywords: | Semiconducting materials ZnO Microrod Photoluminescence |
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