In-situ profiling of pressure-induced exciton traps in suspended MoS2 monolayers
Abstract
We demonstrate the in-situ read-out of the spatial profile of suspended MoS2 monolayers hosted on substrates with nano-structured holes. As the profiles are spatially bent, the suspended MoS2 monolayers act as exciton traps with tunable luminescence intensity and energy. The tunability is realized by controlling the environmental pressure on the monolayers, which allows to control hundreds of suspended MoS2 monolayers on a single substrate. The in-situ read-out is based on Fabry-P\'erot interferences and a model of the corresponding reflectance contrast maps of the investigated monolayers.
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