Study on the synthesis and excitation-powerdependent photoluminescence spectrum of ZnSe nanoparticles

	Study on the synthesis and excitation-powerdependent photoluminescence spectrum of ZnSe nanoparticles
	Feng B.; Cao J.; Yang J.; Han D.; Yang S.
	2014
发表期刊	Applied Physics A: Materials Science and Processing
ISSN	ISBN/09478396
卷号	118 期号:2 页码:563-568
摘要	Zinc selenide (ZnSe) nanoparticles with the cubic zinc blende structure were successfully prepared by a solvothermal method without any surface-active agents. The as-obtained sample was characterized by X-ray diffraction, transmission electron microscopy (TEM), selected area electron diffraction, high-resolution TEM, and room-temperature photoluminescence (PL) techniques. It was proved that EDTA played a significant role during the synthesis of ZnSe nanoparticles. The room-temperature PL spectrum of the ZnSe nanoparticles showed a strong near-band-edge emission peak at 472nm and a weak defect-related emission band in the range of 600650nm. Excitation-powerdependent PL spectrum of the ZnSe nanoparticles showed that the near-band-edge emission peak displayed an evident redshift with increasing the excitation power, and the corresponding energy shift might be as large as 51meV. In addition, the integrated intensity of the near-band-edge emission peak increased with increasing the excitation power, which indicated the competition between the radiative recombination process and the nonradiative recombination process of photogenerated carriers. 2014, Springer-Verlag Berlin Heidelberg.
收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44417
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Feng B.,Cao J.,Yang J.,et al. Study on the synthesis and excitation-powerdependent photoluminescence spectrum of ZnSe nanoparticles[J]. Applied Physics A: Materials Science and Processing,2014,118(2):563-568.
APA	Feng B.,Cao J.,Yang J.,Han D.,&Yang S..(2014).Study on the synthesis and excitation-powerdependent photoluminescence spectrum of ZnSe nanoparticles.Applied Physics A: Materials Science and Processing,118(2),563-568.
MLA	Feng B.,et al."Study on the synthesis and excitation-powerdependent photoluminescence spectrum of ZnSe nanoparticles".Applied Physics A: Materials Science and Processing 118.2(2014):563-568.

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