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Regrowth of CdTe Quantum Dots Induced by Circular Polarized Light and Its Effect on the Photoluminescence
Yan, Bo1,2; Peng, Ze-Yang1,2; Lv, Bin1,2; Liu, Wei3
2017
Source PublicationWuji Cailiao Xuebao/Journal of Inorganic Materials
ISSN1000324X
Volume32Issue:12Pages:1321-1326
AbstractThe 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.
DOI10.15541/jim20170124
EI Accession Number20182005193742
EI KeywordsSemiconductor quantum dots
EI Classification Number711 Electromagnetic Waves - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 761 Nanotechnology - 804 Chemical Products Generally
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25918
Collection中国科学院上海硅酸盐研究所
Affiliation1.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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