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 publication2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781943580422
Publication statusPublished - 2018 Aug 6
Event2018 Conference on Lasers and Electro-Optics, CLEO 2018 - San Jose, United States
Duration: 2018 May 132018 May 18

Publication series

Name2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

Other

Other2018 Conference on Lasers and Electro-Optics, CLEO 2018
CountryUnited States
CitySan Jose
Period18/5/1318/5/18

Fingerprint

Photocurrents
Optoelectronic devices
Graphene
valleys
photocurrents
Heterojunctions
Momentum
graphene
Transistors
Ions
Liquids
room temperature
Temperature
locking
transistors
insulators
momentum
liquids
ions

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings [8426669] (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc..
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. 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings).
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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 = "8",
day = "6",
language = "English",
isbn = "9781943580422",
series = "2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings",
address = "United States",

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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 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings., 8426669, 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 2018 Conference on Lasers and Electro-Optics, CLEO 2018, San Jose, United States, 18/5/13.

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.

2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. 8426669 (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings).

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

TY - GEN

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

PY - 2018/8/6

Y1 - 2018/8/6

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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M3 - Conference contribution

AN - SCOPUS:85052596680

SN - 9781943580422

T3 - 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

BT - 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

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 2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. 8426669. (2018 Conference on Lasers and Electro-Optics, CLEO 2018 - Proceedings).