期刊
CERAMICS INTERNATIONAL
卷 41, 期 1, 页码 587-593出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.08.107
关键词
Zn-1 (-) xCdxO nanopowder; Photoluminescence; Band-gap; Hydrothermal
资金
- National Natural Science Foundation of China [11254001, 61178074, 11204104]
- National Youth Program Foundation of China [61008051]
- Program for the development of Science and Technology of Jilin province [201215225, 201215222, 201205078]
- Twentieth Five-Year Program for Science and Technology of Education Department of Jilin Province [20140155]
- Jilin Normal University [2010027]
Zn-1 (-) xCdxO nanopowder in a wide range of Cd contents has been obtained by hydrothermal synthesis method. Synthesized nanopowder was characterized by powder X-ray diffraction, X-ray photoelectron spectroscopy, Transmission electron microscopy and Photoluminescence. As x varies from 0 to 1, it was observed that the crystal structure changes from wurtzite (ZnO) to mixture of wurtzite and cubic, and finally to cubic (CdO) structure. The wurtzite-type structure of ZnO can be stabilized up to nominal Cd content x similar to 0.1 without cubic CdO phase separation. For the Zn-1 (-) xCdxO nanopowder with wurzite structure, a significant change was observed in ultra-violet near-band-edge emission with variation in Cd content x. The change is attributed to the direct modulation of band gap caused by Zn/Cd substitution. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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