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 language | English (US) |
|---|---|
| Pages (from-to) | 1663-1669 |
| Number of pages | 7 |
| Journal | Journal of Fluorescence |
| Volume | 25 |
| Issue number | 6 |
| DOIs | |
| State | Published - Nov 1 2015 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - Preparation and Effect of Lighting on Structures and Properties of GSH Capped ZnSe QDs
AU - Ding, Ling
AU - Peng, Zeze
AU - Zhou, Peijiang
AU - Cheng, Gary J.
AU - Nian, Qiong
AU - Lin, Dong
AU - Zhou, Jinhui
AU - Liang, Yuhe
PY - 2015/11/1
Y1 - 2015/11/1
N2 - 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.
AB - 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.
KW - Lighting
KW - Mechanism
KW - Structures and properties
KW - ZnSe quantum dots
UR - http://www.scopus.com/inward/record.url?scp=84947047082&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947047082&partnerID=8YFLogxK
U2 - 10.1007/s10895-015-1653-7
DO - 10.1007/s10895-015-1653-7
M3 - Article
AN - SCOPUS:84947047082
VL - 25
SP - 1663
EP - 1669
JO - Journal of Fluorescence
JF - Journal of Fluorescence
SN - 1053-0509
IS - 6
ER -