Microwave-assisted hydrothermal synthesis of highly luminescent ZnSe-based quantum dots with a quantum yield higher than 90%

By Yong-Shin Lee, Kaoru Nakano, Hang-Beom Bu, Dae Gwi Kim

May 22, 2018

  • Year

  • Technique

  • Industry

Title

Microwave-assisted hydrothermal synthesis of highly luminescent ZnSe-based quantum dots with a quantum yield higher than 90%

Author

Yong-Shin Lee, Kaoru Nakano, Hang-Beom Bu, Dae Gwi Kim

Year

2017

Journal

Applied Physics Express

Abstract

Highly luminescent ZnSe-based quantum dots (QDs) were synthesized by a microwave-assisted hydrothermal method. The characteristics of the ZnSe precursor solution strongly influenced the photoluminescence (PL) quantum yields (QYs) of the QDs. The PL QY of ZnSe-core QDs synthesized under the optimum conditions reached 60%. Furthermore, the PL QY further increased to higher than 90% when a ZnS shell was applied to prepare ZnSe/ZnS-core/shell QDs.

Full Article

http://iopscience.iop.org/article/10.7567/APEX.10.065001/meta

Instrument

FP-8300

Keywords

Photoluminescence, Fluorescence, Nanostructures, Chemical stability, Materials