Preparation and Effect of Lighting on Structures and Properties of GSH Capped ZnSe QDs

Ling Ding, Zeze Peng, Peijiang Zhou, Gary J. Cheng, Qiong Nian, Dong Lin, Jinhui Zhou, Yuhe Liang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

L-glutathione (GSH) capped ZnSe quantum dots (QDs) were prepared by microwave-assisted aqueous synthesis. Then, the resulting QDs were illuminated under dark, ultraviolet light and incandescent light, respectively. Thereby effect of lighting on the structures and properties of QDs were studied systematically. It was revealed that particle size and element content of QDs took a sharp change after irradiation, while the crystal structure maintains nearly unaffected. Comparing to the ZnSe QDs under dark condition, counterparts irradiated by UV light possessed outstanding sphericity, size distribution and dispersion. And the content of sulfur (S) in ZnSe QDs irradiated by UV light was much higher relatively. The effect of lighting on vibration peaks of O-H was considerable. However, this effect was observed to be weak on other chemical bonds. The possible explanation ascribes to photo-chemical interactions can occur between S-H and O-H bonds on the surface of GSH ligand. The lighting induced GSH to occur photocatalytic oxidation on the surface of ZnSe QDs, which improved the optical properties of QDs. The effects of lighting rely on irradiation types, the sequence is UV light, incandescent light and dark from high to low.

Original languageEnglish (US)
Pages (from-to)1663-1669
Number of pages7
JournalJournal of Fluorescence
Volume25
Issue number6
DOIs
StatePublished - Nov 1 2015
Externally publishedYes

Fingerprint

Quantum Dots
Lighting
work environment
Semiconductor quantum dots
Ultraviolet Rays
Ultraviolet radiation
Irradiation
Light
Chemical bonds
interaction
Microwaves
Vibration
Particle Size
Sulfur
Glutathione
Optical properties
Crystal structure
Particle size
Ligands
Oxidation

Keywords

  • Lighting
  • Mechanism
  • Structures and properties
  • ZnSe quantum dots

ASJC Scopus subject areas

  • Spectroscopy
  • Biochemistry
  • Clinical Biochemistry

Cite this

Preparation and Effect of Lighting on Structures and Properties of GSH Capped ZnSe QDs. / Ding, Ling; Peng, Zeze; Zhou, Peijiang; Cheng, Gary J.; Nian, Qiong; Lin, Dong; Zhou, Jinhui; Liang, Yuhe.

In: Journal of Fluorescence, Vol. 25, No. 6, 01.11.2015, p. 1663-1669.

Research output: Contribution to journalArticle

Ding, L, Peng, Z, Zhou, P, Cheng, GJ, Nian, Q, Lin, D, Zhou, J & Liang, Y 2015, 'Preparation and Effect of Lighting on Structures and Properties of GSH Capped ZnSe QDs', Journal of Fluorescence, vol. 25, no. 6, pp. 1663-1669. https://doi.org/10.1007/s10895-015-1653-7
Ding, Ling ; Peng, Zeze ; Zhou, Peijiang ; Cheng, Gary J. ; Nian, Qiong ; Lin, Dong ; Zhou, Jinhui ; Liang, Yuhe. / Preparation and Effect of Lighting on Structures and Properties of GSH Capped ZnSe QDs. In: Journal of Fluorescence. 2015 ; Vol. 25, No. 6. pp. 1663-1669.
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