Energy and charge transfer effects in two-dimensional van der Waals hybrid nanostructures on periodic gold nanopost array
In: Applied Physics Letters, Jg. 112 (2018-05-07), S. 193101-193101
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Zugriff:
Two-dimensional (2D) semiconducting MoS2 and WSe2 flakes grown by chemical vapor deposition were mechanically hybridized. A hexagonal boron nitride (h-BN) dielectric flake was inserted between MoS2 and WSe2 flakes to investigate the nanoscale optical properties of 2D van der Waals hybrid nanostructures. The fabricated MoS2/WSe2 and MoS2/h-BN/WSe2 van der Waals hybrid nanostructures were loaded on a periodic gold nanopost (Au-NPo) array to study energy and charge transfer effects at the surface plasmon resonance (SPR) condition. Nanoscale photoluminescence (PL) spectra of the 2D hybrid nanostructures were measured using a high-resolution laser confocal microscope (LCM). A shift of the LCM PL peak of the MoS2/WSe2 n-p hybrid nanostructures was observed owing to the charge transfer. In contrast, the shift of the LCM PL peak of the MoS2/h-BN/WSe2 n-insulator-p hybrid nanostructure was not considerable, as the inserted h-BN dielectric layer prevented the charge transfer. The intensity of the LCM PL peak of the...
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Energy and charge transfer effects in two-dimensional van der Waals hybrid nanostructures on periodic gold nanopost array
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Autor/in / Beteiligte Person: | Sun Gyu Kim ; Jun Young Kim ; Joo, Jinsoo ; Jong Won Youn ; Lee, Yongjun ; Kim, Jeongyong |
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Zeitschrift: | Applied Physics Letters, Jg. 112 (2018-05-07), S. 193101-193101 |
Veröffentlichung: | AIP Publishing, 2018 |
Medientyp: | unknown |
ISSN: | 1077-3118 (print) ; 0003-6951 (print) |
DOI: | 10.1063/1.5023997 |
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