Electrically controllable router of interlayer excitons
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 import...
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sg-ntu-dr.10356-1453852023-02-28T19:26:10Z Electrically controllable router of interlayer excitons Liu, Yuanda Dini, Kévin Tan, Qinghai Liew, Timothy Chi Hin Novoselov, Kostya S. Gao, Weibo School of Physical and Mathematical Sciences The Photonics Institute Centre for Disruptive Photonic Technologies (CDPT) Science::Physics Electric Fields Excitons 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. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) National Research Foundation (NRF) Published version This work is supported by the Singapore National Research Foundation through its Competitive Research Program (CRP Award No. NRF-CRP21-2018-0007), Singapore Ministry of Education [MOE2016-T2-2-077, MOE2016-T2-1-163, MOE2018-T3-1-002, and MOE2016-T3-1-006 (S)], and A*Star QTE programme. 2020-12-21T01:57:20Z 2020-12-21T01:57:20Z 2020 Journal Article Liu, Y., Dini, K., Tan, Q., Liew, T. C. H., Novoselov, K.S., & Gao, W. (2020). Electrically controllable router of interlayer excitons. Science Advances, 6(41), eaba1830-. doi:10.1126/sciadv.aba1830 2375-2548 https://hdl.handle.net/10356/145385 10.1126/sciadv.aba1830 33028515 41 6 en NRF-CRP21-2018-0007 MOE2016-T2-2-077 MOE2016-T2-1-163 MOE2018-T3-1-002 MOE2016-T3-1-006 Science Advances © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). application/pdf |
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Science::Physics Electric Fields Excitons Liu, Yuanda Dini, Kévin Tan, Qinghai Liew, Timothy Chi Hin Novoselov, Kostya S. Gao, Weibo Electrically controllable router of interlayer excitons |
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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. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Liu, Yuanda Dini, Kévin Tan, Qinghai Liew, Timothy Chi Hin Novoselov, Kostya S. Gao, Weibo |
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Article |
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Liu, Yuanda Dini, Kévin Tan, Qinghai Liew, Timothy Chi Hin Novoselov, Kostya S. Gao, Weibo |
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Liu, Yuanda |
title |
Electrically controllable router of interlayer excitons |
title_short |
Electrically controllable router of interlayer excitons |
title_full |
Electrically controllable router of interlayer excitons |
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Electrically controllable router of interlayer excitons |
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Electrically controllable router of interlayer excitons |
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electrically controllable router of interlayer excitons |
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2020 |
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https://hdl.handle.net/10356/145385 |
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1759857500735143936 |