Regrowth of CdTe Quantum Dots Induced by Circular Polarized Light and Its Effect on the Photoluminescence

doi:10.15541/jim20170124

SIC OpenIR

	Regrowth of CdTe Quantum Dots Induced by Circular Polarized Light and Its Effect on the Photoluminescence
	Yan, Bo 1,2; Peng, Ze-Yang 1,2; Lv, Bin 1,2; Liu, Wei 3
	2017
发表期刊	Wuji Cailiao Xuebao/Journal of Inorganic Materials
ISSN	1000324X
卷号	32 期号:12 页码:1321-1326
摘要	The water soluble CdTe quantum dots were synthesized in aqueous solution using 3-mercaptopropionic acid as stabilizer reagent. Effects of non-polarized and circular polarized light modification on structural and optical properties of quantum dots were investigated by photoluminescence spectroscope, ultraviolet visible absorption spectroscope, transmission electron microscope, and X-ray diffraction. It is revealed that the non-polarized light tends to oxidize the quantum dots, which brings about photo degradation of quantum dots and blue shift of photoluminescence. By contrast, the circular polarized light oxidizes the stabilizer reagent at the surface of CdTe quantum dots, which leads to regrowth of quantum dots and red shift of photoluminescence. Moreover, the photochemical reaction mechanism together with the bonding effect between stabilizer reagent and CdTe quantum dot were studied. The photoluminescence of CdTe quantum dot is associated with its surface states. © 2017, Science Press. All right reserved.
DOI	10.15541/jim20170124
EI入藏号	20182005193742
EI主题词	Semiconductor quantum dots
EI分类号	711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 761 Nanotechnology - 804 Chemical Products Generally
引用统计
文献类型	期刊论文
条目标识符	http://ir.sic.ac.cn/handle/331005/25918
专题	中国科学院上海硅酸盐研究所
作者单位	1.College of Science, Zhejiang University of Technology, Hangzhou; 310023, China; 2.Center for Optics and Optoelectronics Research, Zhejiang University of Technology, Hangzhou; 310023, China; 3.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China
推荐引用方式 GB/T 7714	Yan, Bo,Peng, Ze-Yang,Lv, Bin,et al. Regrowth of CdTe Quantum Dots Induced by Circular Polarized Light and Its Effect on the Photoluminescence[J]. Wuji Cailiao Xuebao/Journal of Inorganic Materials,2017,32(12):1321-1326.
APA	Yan, Bo,Peng, Ze-Yang,Lv, Bin,&Liu, Wei.(2017).Regrowth of CdTe Quantum Dots Induced by Circular Polarized Light and Its Effect on the Photoluminescence.Wuji Cailiao Xuebao/Journal of Inorganic Materials,32(12),1321-1326.
MLA	Yan, Bo,et al."Regrowth of CdTe Quantum Dots Induced by Circular Polarized Light and Its Effect on the Photoluminescence".Wuji Cailiao Xuebao/Journal of Inorganic Materials 32.12(2017):1321-1326.