Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures

Soonyoung Cha, Minji Noh, Je Hyun Kim, Jangyup Son, Hyemin Bae, Doeon Lee, Hoil Kim, Jekwan Lee, Hoseung Shin, Sangwan Sim, Seunghoon Yang, Chul Ho Lee, Moon Ho Jo, Jun Sung Kim, Dohun Kim, Hyunyong Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Using a lateral WSe2-graphene-Bi2Se3 heterostructure, we generate the valley-locked spin photocurrent in ion-liquid gated WSe2 transistor by the circular photogalvanic effect and extract the spin-polarized current in the Bi2Se3 topological insulator using the spin-momentum locking.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationQELS_Fundamental Science, CLEO_QELS 2018
PublisherOSA - The Optical Society
ISBN (Electronic)9781557528209
DOIs
Publication statusPublished - 2018 Jan 1
EventCLEO: QELS_Fundamental Science, CLEO_QELS 2018 - San Jose, United States
Duration: 2018 May 132018 May 18

Publication series

NameOptics InfoBase Conference Papers
VolumePart F93-CLEO_QELS 2018

Other

OtherCLEO: QELS_Fundamental Science, CLEO_QELS 2018
CountryUnited States
CitySan Jose
Period18/5/1318/5/18

Fingerprint

Graphite
Photocurrents
Optoelectronic devices
Graphene
Heterojunctions
Momentum
Transistors
Ions
Liquids
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

Cite this

Cha, S., Noh, M., Kim, J. H., Son, J., Bae, H., Lee, D., ... Choi, H. (2018). Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures. In CLEO: QELS_Fundamental Science, CLEO_QELS 2018 (Optics InfoBase Conference Papers; Vol. Part F93-CLEO_QELS 2018). OSA - The Optical Society. https://doi.org/10.1364/CLEO_QELS.2018.FTh1F.1
Cha, Soonyoung ; Noh, Minji ; Kim, Je Hyun ; Son, Jangyup ; Bae, Hyemin ; Lee, Doeon ; Kim, Hoil ; Lee, Jekwan ; Shin, Hoseung ; Sim, Sangwan ; Yang, Seunghoon ; Lee, Chul Ho ; Jo, Moon Ho ; Kim, Jun Sung ; Kim, Dohun ; Choi, Hyunyong. / Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures. CLEO: QELS_Fundamental Science, CLEO_QELS 2018. OSA - The Optical Society, 2018. (Optics InfoBase Conference Papers).
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title = "Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures",
abstract = "Using a lateral WSe2-graphene-Bi2Se3 heterostructure, we generate the valley-locked spin photocurrent in ion-liquid gated WSe2 transistor by the circular photogalvanic effect and extract the spin-polarized current in the Bi2Se3 topological insulator using the spin-momentum locking.",
author = "Soonyoung Cha and Minji Noh and Kim, {Je Hyun} and Jangyup Son and Hyemin Bae and Doeon Lee and Hoil Kim and Jekwan Lee and Hoseung Shin and Sangwan Sim and Seunghoon Yang and Lee, {Chul Ho} and Jo, {Moon Ho} and Kim, {Jun Sung} and Dohun Kim and Hyunyong Choi",
year = "2018",
month = "1",
day = "1",
doi = "10.1364/CLEO_QELS.2018.FTh1F.1",
language = "English",
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Cha, S, Noh, M, Kim, JH, Son, J, Bae, H, Lee, D, Kim, H, Lee, J, Shin, H, Sim, S, Yang, S, Lee, CH, Jo, MH, Kim, JS, Kim, D & Choi, H 2018, Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures. in CLEO: QELS_Fundamental Science, CLEO_QELS 2018. Optics InfoBase Conference Papers, vol. Part F93-CLEO_QELS 2018, OSA - The Optical Society, CLEO: QELS_Fundamental Science, CLEO_QELS 2018, San Jose, United States, 18/5/13. https://doi.org/10.1364/CLEO_QELS.2018.FTh1F.1

Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures. / Cha, Soonyoung; Noh, Minji; Kim, Je Hyun; Son, Jangyup; Bae, Hyemin; Lee, Doeon; Kim, Hoil; Lee, Jekwan; Shin, Hoseung; Sim, Sangwan; Yang, Seunghoon; Lee, Chul Ho; Jo, Moon Ho; Kim, Jun Sung; Kim, Dohun; Choi, Hyunyong.

CLEO: QELS_Fundamental Science, CLEO_QELS 2018. OSA - The Optical Society, 2018. (Optics InfoBase Conference Papers; Vol. Part F93-CLEO_QELS 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures

AU - Cha, Soonyoung

AU - Noh, Minji

AU - Kim, Je Hyun

AU - Son, Jangyup

AU - Bae, Hyemin

AU - Lee, Doeon

AU - Kim, Hoil

AU - Lee, Jekwan

AU - Shin, Hoseung

AU - Sim, Sangwan

AU - Yang, Seunghoon

AU - Lee, Chul Ho

AU - Jo, Moon Ho

AU - Kim, Jun Sung

AU - Kim, Dohun

AU - Choi, Hyunyong

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N2 - Using a lateral WSe2-graphene-Bi2Se3 heterostructure, we generate the valley-locked spin photocurrent in ion-liquid gated WSe2 transistor by the circular photogalvanic effect and extract the spin-polarized current in the Bi2Se3 topological insulator using the spin-momentum locking.

AB - Using a lateral WSe2-graphene-Bi2Se3 heterostructure, we generate the valley-locked spin photocurrent in ion-liquid gated WSe2 transistor by the circular photogalvanic effect and extract the spin-polarized current in the Bi2Se3 topological insulator using the spin-momentum locking.

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T3 - Optics InfoBase Conference Papers

BT - CLEO

PB - OSA - The Optical Society

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Cha S, Noh M, Kim JH, Son J, Bae H, Lee D et al. Room-temperature optoelectronic detection of valley-locked spin photocurrent in WSe2-graphene-Bi2Se3 heterostructures. In CLEO: QELS_Fundamental Science, CLEO_QELS 2018. OSA - The Optical Society. 2018. (Optics InfoBase Conference Papers). https://doi.org/10.1364/CLEO_QELS.2018.FTh1F.1