Structure and optically pumped lasing from nanocrystalline ZnO thin films prepared by thermal oxidation of ZnS thin films

	Structure and optically pumped lasing from nanocrystalline ZnO thin films prepared by thermal oxidation of ZnS thin films
其他题名	论文其他题名
	Zhang X. T.; Liu Y. C.; Zhang L. G.; Zhang J. Y.; Lu Y. M.; Shen D. Z.; Xu W.; Zhong G. Z.; Fan X. W.; Kong X. G.
	2002
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	92 期号:6 页码:3293-3298
摘要	In this article, we observe the optically pumped lasing from the high-quality nanocrystalline ZnO thin films obtained by thermal oxidation of ZnS thin films, which were grown on SiO2 substrates by low-pressure-metalorganic chemical vapor deposition technique. The x-ray diffraction (XRD) patterns indicate that high-quality ZnS films possess a preferred (111) orientation. ZnS has a transformation to ZnO at an annealing temperature (T-a) of 500 degreesC, and fully transforms into ZnO at T(a)greater than or equal to700 degreesC from the XRD patterns. The obtained ZnO films possess a polycrystalline hexagonal wurtzite structure. The fifth-order Raman scattering is observed in the films, which indicates that a large deformation energy exists in the lattice. In photoluminescence (PL), spectra, for all the samples with different annealing temperatures, the near-band-edge (NBE) PL peak has a pronounced blueshift with increasing annealing temperature, while the full width at half maximum (FWHM) decreases gradually. We think that emissions of the bound excitons play an important role in NBE PL. A strong PL with a FWHM of 62 meV at 3.30 eV from NBE has been obtained at room temperature for the samples annealed at 900 degreesC. The PL intensity ratio of the ultraviolet emission to the deep-level emission is as high as 98 at room temperature, indicating the high-quality of the nanocrystalline ZnO films. (C) 2002 American Institute of Physics.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26847
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang X. T.,Liu Y. C.,Zhang L. G.,et al. Structure and optically pumped lasing from nanocrystalline ZnO thin films prepared by thermal oxidation of ZnS thin films[J]. Journal of Applied Physics,2002,92(6):3293-3298.
APA	Zhang X. T..,Liu Y. C..,Zhang L. G..,Zhang J. Y..,Lu Y. M..,...&Kong X. G..(2002).Structure and optically pumped lasing from nanocrystalline ZnO thin films prepared by thermal oxidation of ZnS thin films.Journal of Applied Physics,92(6),3293-3298.
MLA	Zhang X. T.,et al."Structure and optically pumped lasing from nanocrystalline ZnO thin films prepared by thermal oxidation of ZnS thin films".Journal of Applied Physics 92.6(2002):3293-3298.

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