1. Synthesis and photoluminescence, field emission properties of stalactite-like ZnS-ZnO composite nanostructures.
- Author
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Li, J., Fang, G. J., Li, C., Yuan, L. Y., Ai, L., Liu, N. S., Zhao, D. S., Ding, K., Li, G. H., and Zhao, X. Z.
- Subjects
NANOSTRUCTURES ,ZINC oxide ,ZINC sulfide ,PHOTOLUMINESCENCE ,FIELD emission ,WURTZITE - Abstract
Wurtzite stalactite-like quasi-one-dimensional ZnS nanoarrays with ZnO protuberances were synthesized through a thermal evaporation route. The structure and morphology of the samples are studied and the growth mechanism is discussed. X-ray diffraction (XRD) results show both the ZnS stem and the ZnO protuberances have wurtzite structure and show preferred [001] oriented growth. The photoluminescence and field emission properties have also been investigated. Room temperature photoluminescence result shows it has a strong green light emission, which has potential application for green light emitter. Experimental results also show that the stalactite arrays have a good field emission property, with turn-on field of 11.4 V/μm, and threshold field of 16 V/μm. The ZnO protuberances on the ZnS stem might enhance the field emission notably. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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