Enhancing self-assembled colloidal quantum dot microsphere lasers

dos Santos Alves, Pedro and Jevtics, Dimitars and Strain, Michael J. and Dawson, Martin D. and Laurand, Nicolas; (2021) Enhancing self-assembled colloidal quantum dot microsphere lasers. In: 2021 IEEE Photonics Conference (IPC). IEEE, Piscataway, NJ., pp. 1-2. ISBN 9781665446761 (https://doi.org/10.1109/IPC48725.2021.9592976)

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Abstract

We demonstrate the superior emission properties of a red-emitting self-assembled quantum dot microsphere laser made from a blend of green and red bandgap CdS x Se 1-x / ZnS quantum dots. The addition of the higher bandgap material reduces self-absorption and improves the Q-factor.