Tunable interlayer excitons and switchable interlayer trions via dynamic near-field cavity

Yeonjeong Koo; Hyeongwoo Lee; Tatiana Ivanova; Ali Kefayati; Vasili Perebeinos; Ekaterina Khestanova; Vasily Kravtsov; Kyoung-Duck Park

doi:10.1038/s41377-023-01087-5

Light: Science & Applications (Mar 2023)

Tunable interlayer excitons and switchable interlayer trions via dynamic near-field cavity

Yeonjeong Koo,
Hyeongwoo Lee,
Tatiana Ivanova,
Ali Kefayati,
Vasili Perebeinos,
Ekaterina Khestanova,
Vasily Kravtsov,
Kyoung-Duck Park

Affiliations

Yeonjeong Koo: Department of Physics, Pohang University of Science and Technology (POSTECH)
Hyeongwoo Lee: Department of Physics, Pohang University of Science and Technology (POSTECH)
Tatiana Ivanova: School of Physics and Engineering, ITMO University
Ali Kefayati: Department of Electrical Engineering, University at Buffalo
Vasili Perebeinos: Department of Electrical Engineering, University at Buffalo
Ekaterina Khestanova: School of Physics and Engineering, ITMO University
Vasily Kravtsov: School of Physics and Engineering, ITMO University
Kyoung-Duck Park: Department of Physics, Pohang University of Science and Technology (POSTECH)

DOI: https://doi.org/10.1038/s41377-023-01087-5
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 10

Abstract

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We demonstrate an all-round dynamic control of intra- and inter-layer excitonic processes and interconversion between IX and IX− in a WSe2/Mo0.5 W0.5 Se2 heterobilayer with <20 nm spatial resolution, achieved by multifunctional tip-enhanced photoluminescence (TEPL) spectroscopy and imaging.

Published in Light: Science & Applications

ISSN: 2047-7538 (Online)
Publisher: Nature Publishing Group
Country of publisher: United Kingdom
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: https://www.nature.com/lsa/

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