Defect-engineered localized exciton in monolayer WSe2

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

2022 Conference on Lasers and Electro-Optics (CLEO)（2022）

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摘要

Here, we demonstrate controlled defect engineering in monolayer WSe 2 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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关键词

monolayer,UV-ozone treatment,defect-engineered localized exciton,tungsten oxyselenide,red-shifted photoluminescence emission,temperature 293.0 K to 298.0 K,WSe2

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