Defect-engineered localized exciton in monolayer WSe2

Rishi Maiti; Cecilia Chen; Anjaly Rajendran; Kaiyuan Yao; Gaurang Bhatt; James Hone; Michal Lipson; Alex L. Gaeta

doi:10.1364/CLEO_SI.2022.SM2G.5

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper SM2G.5
•https://doi.org/10.1364/CLEO_SI.2022.SM2G.5

Defect-engineered localized exciton in monolayer WSe₂

Rishi Maiti, Cecilia Chen, Anjaly Rajendran, Kaiyuan Yao, Gaurang Bhatt, James Hone, Michal Lipson, and Alex L. Gaeta

CLEO: Science and Innovations 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

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Photonics of Low Dimensional Materials and Nanostructures (SM2G)

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R. Maiti, C. Chen, A. Rajendran, K. Yao, G. Bhatt, J. Hone, M. Lipson, and A. L. Gaeta, "Defect-engineered localized exciton in monolayer WSe2," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper SM2G.5.

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Abstract

Here, we demonstrate controlled defect engineering in monolayer WSe2 via UV-ozone treatment. The creation of Tungsten oxyselenide (TOS) shows broad red-shifted PL emission centered at ~770 nm at room temperature.

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