ZnO Multi-Branched Microflowers: Fabrication and Temperature-Dependent Photoluminescence Properties

	ZnO Multi-Branched Microflowers: Fabrication and Temperature-Dependent Photoluminescence Properties
	Ding M.; Zhao D. X.; Yao B.; Xu X. J.
	2014
发表期刊	Science of Advanced Materials
ISSN	ISBN/1947-2935
卷号	6 期号:1 页码:198-202
摘要	ZnO multi-branched microflowers were synthesized on Si substrate using a simple vapor transport process without any catalysts. X-ray diffractometer (XRD), Raman spectroscopy and field emission scanning electron microscopy (FESEM) were used to characterize the morphologies and structures. The XRD results showed that the as-grown ZnO microflowers possessed hexagonal wurtzite structure with preferred c-axis orientation. The FESEM results indicated that the microflowers had multi-branches, and each branch showed the nanonail morphology with the length of about 1.5 mu m. Their photoluminescence properties were found to be strongly temperature-dependent. The different transitions including free exciton emission, bound exciton emission and the free-to-bound (FB) transition were clearly observed at 86 K. The bound exciton emission and FB emission became weak with the increase of the testing temperature, while the free exciton (FE) emission got relatively strong. The 1-LO phonon replica of FB was rather strong in the multi-branched ZnO microflowers.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44514
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Ding M.,Zhao D. X.,Yao B.,et al. ZnO Multi-Branched Microflowers: Fabrication and Temperature-Dependent Photoluminescence Properties[J]. Science of Advanced Materials,2014,6(1):198-202.
APA	Ding M.,Zhao D. X.,Yao B.,&Xu X. J..(2014).ZnO Multi-Branched Microflowers: Fabrication and Temperature-Dependent Photoluminescence Properties.Science of Advanced Materials,6(1),198-202.
MLA	Ding M.,et al."ZnO Multi-Branched Microflowers: Fabrication and Temperature-Dependent Photoluminescence Properties".Science of Advanced Materials 6.1(2014):198-202.

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