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Journal of Nanophotonics

Highly stable and efficient green luminescent CdS colloidal nanocrystals
Author(s): Morteza Sasani Ghamsari; Amir Hossein Sasani Ghamsari; Wooje Han; Hyung-Ho Park
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Paper Abstract

A chemical route was used to synthesize highly stable CdS colloidal nanocrystals. Different characterization techniques, such as UV-Vis, photoluminescence, and time-resolved photoluminescence spectroscopy, were used to study the optical properties of synthesized sample. A strong and narrow green emission peak centered at 532 nm with 40-nm full widths at half maximum and 57.2% quantum efficiency was recorded. The absorption cross section at the first absorption peak is about 11.69×10−16  cm2 that has not been reported before. Variation in optical properties, such as emission peak intensity and full widths at half maximum of emission peak, was evaluated with various long-term measurements (after 1 year). Obtained results confirm that the prepared CdS nanocrystals can be employed as green source material.

Paper Details

Date Published: 19 May 2016
PDF: 9 pages
J. Nanophoton. 10(2) 026017 doi: 10.1117/1.JNP.10.026017
Published in: Journal of Nanophotonics Volume 10, Issue 2
Show Author Affiliations
Morteza Sasani Ghamsari, Nuclear Science and Technology Research Institute (Iran)
Amir Hossein Sasani Ghamsari, Nuclear Science and Technology Research Institute (Iran)
Wooje Han, Yonsei Univ. (Korea)
Hyung-Ho Park, Yonsei Univ. (Korea)

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