期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 384, 期 1-3, 页码 580-584出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2011.05.013
关键词
Gas sensors; Lanthanides; Photoluminescence; Zinc oxide
资金
- National Basic Research Program of China (973 Program) [2011CB925600]
- National Natural Science Foundation of China [60827004, 90921002]
- Science and Technology Program of Xiamen of China
- Science and Technology Program of Fujian of China
- China Postdoctoral Science Foundation [20080430786]
ZnO based nanostructures including ZnO and erbium (Er) doped ZnO nanocrystals (NCs) were synthesized by a one-step solvothermal method. Compared with the pure ZnO NCs, photoluminescence (PL) of the Er-doped ZnO NCs made an improvement in the visible emissions, which was attributed to the defects or vacancies resulted from Er-dopants. The enhanced defects or vacancies resulted in high activity surfaces, which benefit sensing properties. Furthermore, sensing experiments confirmed that the sensing performance of Er-doped ZnO NCs was improved almost doubled than the pure ZnO NCs. Therefore, the high sensibility gas sensors based on Er-doped ZnO NCs were successfully fabricated. (C) 2011 Elsevier B.V. All rights reserved.
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