Nanocavity-induced trion emission from atomically thin WSe2

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Nanocavity-induced trion emission from atomically thin WSe2
Title:
Nanocavity-induced trion emission from atomically thin WSe2
Journal Title:
Scientific Reports
Publication Date:
23 September 2022
Citation:
Wang, Z., Liu, Y., Chen, D., Wang, Z., Asbahi, M., Rezaei, S. D., Deng, J., Teng, J., Wee, A. T. S., Zhang, W., Yang, J. K. W., & Dong, Z. (2022). Nanocavity-induced trion emission from atomically thin WSe2. Scientific Reports, 12(1). https://doi.org/10.1038/s41598-022-20226-3
Abstract:
Exciton is a bosonic quasiparticle consisting of a pair of electron and hole, with promising potentials for optoelectronic device applications, such as exciton transistors, photodetectors and light emitting devices. However, the charge-neutral nature of excitons renders them challenging to manipulate using electronics. Here we present the generation of trions, a form of charged excitons, together with enhanced exciton resonance in monolayer WSe2. The excitation of the trion quasiparticles is achieved by the hot carrier transport from the integrated gold plasmonic nanocavity, formed by embedding monolayer WSe2 between gold nanoparticles and a gold film. The nanocavity-induced negatively charged trions provide a promising route for the manipulation of excitons, essential for the construction of all-exciton information processing circuits.
License type:
Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Funding Info:
This research / project is supported by the A*STAR - Career Development Award
Grant Reference no. : C210112019

This research / project is supported by the A*STAR - Advanced Manufacturing and Engineering Individual Research Grant
Grant Reference no. : A20E5c0093

This research / project is supported by the A*STAR - MTC Individual Research Grants
Grant Reference no. : M21K2c0116

This research / project is supported by the A*STAR - MTC Young Individual Research Grant
Grant Reference no. : M21K3c0127

Tis research was supported by the National Natural Science Foundation of China (NSFC) under Grants Nos. 62175160 and 61805159, the Guangdong Natural Science Funds (2019A1515011007), and Shenzhen Peacock Plan (827-000473)
Description:
ISSN:
2045-2322
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