Electrically controllable router of interlayer excitons
Autor: | Timothy Chi Hin Liew, Kostya S. Novoselov, K. Dini, Weibo Gao, Qing-Hai Tan, Yuanda Liu |
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Přispěvatelé: | School of Physical and Mathematical Sciences, The Photonics Institute, Centre for Disruptive Photonic Technologies (CDPT) |
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Router
Materials science Exciton Electric Fields law.invention Computer Science::Hardware Architecture Condensed Matter::Materials Science Computer Science::Emerging Technologies Hardware_GENERAL law Physics [Science] Electric field Hardware_INTEGRATEDCIRCUITS Computer Science::Networking and Internet Architecture Research Articles Applied Physics Coupling Multidisciplinary Condensed Matter::Other business.industry Bilayer Transistor SciAdv r-articles Heterojunction Condensed Matter Physics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Dipole Optoelectronics Excitons business Research Article |
Zdroj: | Science Advances |
Popis: | Electrically controllable excitonic transistor and router based on bilayer WSe2 have been demonstrated. Optoelectronic devices that allow rerouting, modulation, and detection of the optical signals would be extremely beneficial for telecommunication technology. One of the most promising platforms for these devices is excitonic devices, as they offer very efficient coupling to light. Of especial importance are those based on indirect excitons because of their long lifetime. Here, we demonstrate excitonic transistor and router based on bilayer WSe2. Because of their strong dipole moment, excitons in bilayer WSe2 can be controlled by transverse electric field. At the same time, unlike indirect excitons in artificially stacked heterostructures based on transition metal dichalcogenides, naturally stacked bilayers are much simpler in fabrication. |
Databáze: | OpenAIRE |
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