| Autor: |
Hyeongwoo Lee, Yeonjeong Koo, Jinseong Choi, Shailabh Kumar, Hyoung-Taek Lee, Gangseon Ji, Soo Ho Choi, Mingu Kang, Ki Kang Kim, Hyeong-Ryeol Park, Hyuck Choo, Kyoung-Duck Park |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Science advances. 8(5) |
| ISSN: |
2375-2548 |
| Popis: |
Understanding and controlling the nanoscale transport of excitonic quasiparticles in atomically thin two-dimensional (2D) semiconductors are crucial to produce highly efficient nano-excitonic devices. Here, we present a nanogap device to selectively confine excitons or trions of 2D transition metal dichalcogenides at the nanoscale, facilitated by the drift-dominant exciton funneling into the strain-induced local spot. We investigate the spatiospectral characteristics of the funneled excitons in a WSe 2 monolayer (ML) and converted trions in a MoS 2 ML using hyperspectral tip-enhanced photoluminescence imaging with |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
