Highly stable and efficient green luminescent CdS colloidal nanocrystals

Morteza Sasani Ghamsari; Amir Hossein Sasani Ghamsari; Wooje Han; Hyung-Ho Park

doi:10.1117/1.JNP.10.026017

19 May 2016 Highly stable and efficient green luminescent CdS colloidal nanocrystals

Morteza Sasani Ghamsari, Amir Hossein Sasani Ghamsari, Wooje Han, Hyung-Ho Park

Author Affiliations +

Journal of Nanophotonics, Vol. 10, Issue 2, 026017 (May 2016). https://doi.org/10.1117/1.JNP.10.026017

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.

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Morteza Sasani Ghamsari, Amir Hossein Sasani Ghamsari, Wooje Han, and Hyung-Ho Park "Highly stable and efficient green luminescent CdS colloidal nanocrystals," Journal of Nanophotonics 10(2), 026017 (19 May 2016). https://doi.org/10.1117/1.JNP.10.026017

Published: 19 May 2016

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