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
Source Publication	Wuji Cailiao Xuebao/Journal of Inorganic Materials
ISSN	1000324X
Volume	32 Issue:12 Pages:1321-1326
Abstract	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 Accession Number	20182005193742
EI Keywords	Semiconductor quantum dots
EI Classification Number	711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 761 Nanotechnology - 804 Chemical Products Generally
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/25918
Collection	中国科学院上海硅酸盐研究所
Affiliation	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
Recommended Citation 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.

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