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Article Abstract
Transition-metal dichalcogenides (TMDCs), as emerging optoelectronic materials, necessitate the establishment of an experimentally viable system to study their interaction with light. In this study, we propose and analyze a WS/PMMA/Ag planar Fabry-Perot (F-P) cavity, enabling the direct experimental measurement of WS absorbance. By optimizing the structure, the absorbance of A exciton of WS up to 0.546 can be experimentally achieved, which matches well with the theoretical calculations. Through temperature and thermal expansion strain induced by temperature, the absorbance of the A exciton can be tuned in situ. Furthermore, temperature-dependent photocurrent measurements confirmed the consistent absorbance of the A exciton under varying temperatures. This WS/PMMA/Ag planar structure provides a straightforward and practical platform for investigating light interaction in TMDCs, laying a solid foundation for future developments of TMDC-based optoelectronic devices.
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| http://dx.doi.org/10.1364/OL.522089 | DOI Listing |
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