Near-infrared-emitting colloidal Ag2S quantum dots excited by an 808 nm diode laser
Yanyan Zhang
1
,
Jinfeng Xia
2
,
Caixia Li
3
,
Guohong Zhou
2
,
Wei Yang
1
,
Dandan Wang
1
,
Huiping Zheng
1
,
Yuansheng Du
1
,
Xi Li
1
,
Qiang Li
1
Publication type: Journal Article
Publication date: 2017-04-27
scimago Q1
wos Q2
SJR: 0.802
CiteScore: 7.6
Impact factor: 3.9
ISSN: 00222461, 15734803
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
Thioglycolic acid (TGA)-coated colloidal Ag2S quantum dots (QDs) emitting in the near-infrared (NIR) region upon excitation by an 808 nm diode laser were synthesized. The observed photoluminescence (PL) was attributed to the presence of ligand-modified Ag2S on the QD surfaces and could be easily controlled by a simple dilution process due to the concentration-dependent surface structure of the colloidal QDs. Upon dilution of the solution, the PL intensity initially increased before later decreasing, with a blueshift being observed in the PL spectra. These phenomena can be accounted for by the aggregation of QDs due to a decrease in the content of ligand-modified Ag2S on the QD surfaces upon dilution, which in turn affected the fluorescence resonance energy transfer (FRET), and re-emission of the surface energy level.
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Total citations:
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Citations from 2024:
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GOST
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Zhang Y. et al. Near-infrared-emitting colloidal Ag2S quantum dots excited by an 808 nm diode laser // Journal of Materials Science. 2017. Vol. 52. No. 16. pp. 9424-9429.
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Zhang Y., Xia J., Li C., Zhou G., Yang W., Wang D., Zheng H., Du Y., Li X., Li Q. Near-infrared-emitting colloidal Ag2S quantum dots excited by an 808 nm diode laser // Journal of Materials Science. 2017. Vol. 52. No. 16. pp. 9424-9429.
Cite this
RIS
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TY - JOUR
DO - 10.1007/s10853-017-1131-5
UR - https://doi.org/10.1007/s10853-017-1131-5
TI - Near-infrared-emitting colloidal Ag2S quantum dots excited by an 808 nm diode laser
T2 - Journal of Materials Science
AU - Zhang, Yanyan
AU - Xia, Jinfeng
AU - Li, Caixia
AU - Zhou, Guohong
AU - Yang, Wei
AU - Wang, Dandan
AU - Zheng, Huiping
AU - Du, Yuansheng
AU - Li, Xi
AU - Li, Qiang
PY - 2017
DA - 2017/04/27
PB - Springer Nature
SP - 9424-9429
IS - 16
VL - 52
SN - 0022-2461
SN - 1573-4803
ER -
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BibTex (up to 50 authors)
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@article{2017_Zhang,
author = {Yanyan Zhang and Jinfeng Xia and Caixia Li and Guohong Zhou and Wei Yang and Dandan Wang and Huiping Zheng and Yuansheng Du and Xi Li and Qiang Li},
title = {Near-infrared-emitting colloidal Ag2S quantum dots excited by an 808 nm diode laser},
journal = {Journal of Materials Science},
year = {2017},
volume = {52},
publisher = {Springer Nature},
month = {apr},
url = {https://doi.org/10.1007/s10853-017-1131-5},
number = {16},
pages = {9424--9429},
doi = {10.1007/s10853-017-1131-5}
}
Cite this
MLA
Copy
Zhang, Yanyan, et al. “Near-infrared-emitting colloidal Ag2S quantum dots excited by an 808 nm diode laser.” Journal of Materials Science, vol. 52, no. 16, Apr. 2017, pp. 9424-9429. https://doi.org/10.1007/s10853-017-1131-5.