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  Ultrafast Charge Separation in Bilayer WS2/Graphene Heterostructure Revealed by Time- and Angle-Resolved Photoemission Spectroscopy

Krause, R., Chavez Cervantes, M., Aeschlimann, S., Forti, S., Fabbri, F., Rossi, A., Coletti, C., Cacho, C., Zhang, Y., Majchrzak, P. E., Chapman, R. T., Springate, E., & Gierz, I. (2021). Ultrafast Charge Separation in Bilayer WS2/Graphene Heterostructure Revealed by Time- and Angle-Resolved Photoemission Spectroscopy. Frontiers in Physics, 9:. doi:10.3389/fphy.2021.668149.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0008-6D40-6 版のパーマリンク: https://hdl.handle.net/21.11116/0000-000B-CA5D-A
資料種別: 学術論文

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fphy-09-668149.pdf (出版社版), 3MB
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ファイルのパーマリンク:
https://hdl.handle.net/21.11116/0000-0008-6D42-4
ファイル名:
fphy-09-668149.pdf
説明:
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
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Not specified
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公開
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application/pdf / [MD5]
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著作権日付:
2021
著作権情報:
© Krause, Chávez-Cervantes, Aeschlimann, Forti, Fabbri, Rossi, Coletti, Cacho, Zhang, Majchrzak, Chapman, Springate and Gierz.
CCライセンス:
http://creativecommons.org/licenses/by/4.0/

関連URL

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URL:
https://dx.doi.org/10.3389/fphy.2021.668149 (出版社版)
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-
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作成者

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 作成者:
Krause, R.1, 2, 3, 著者           
Chavez Cervantes, M.2, 3, 著者           
Aeschlimann, S.1, 2, 3, 著者           
Forti, S.4, 著者
Fabbri, F.4, 5, 6, 著者
Rossi, A.4, 5, 著者
Coletti, C.4, 6, 著者
Cacho, C.7, 著者
Zhang, Y.8, 著者
Majchrzak, P. E.9, 著者
Chapman, R. T.8, 著者
Springate, E.8, 著者
Gierz, I.1, 著者
所属:
1Institute for Experimental and Applied Physics, University of Regensburg, ou_persistent22              
2Ultrafast Electron Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938295              
3Center for Free Electron Laser Science, ou_persistent22              
4Center for Nanotechnology Innovation at IIT@NEST, Istituto Italiano di Tecnologia, ou_persistent22              
5National Enterprise for nanoScience and nanoTechnology (NEST), Istituto Nanoscienze, Consiglio Nazionale delle Ricerche (CNR) and Scuola Normale Superiore, ou_persistent22              
6Graphene Labs, Istituto Italiano di Tecnologia, ou_persistent22              
7Diamond Light Source, Harwell Science and Innovation Campus, ou_persistent22              
8Central Laser Facility, Science and Technology Facilities Council (STFC) Rutherford Appleton Laboratory, ou_persistent22              
9Department of Physics and Astronomy, Aarhus University, ou_persistent22              

内容説明

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キーワード: TMD, graphene, van der Waals heterostructures, tr-ARPES, ultrafast charge transfer, photovoltaics
 要旨: Efficient light harvesting devices need to combine strong absorption in the visible spectral range with efficient ultrafast charge separation. These features commonly occur in novel ultimately thin van der Waals heterostructures with type II band alignment. Recently, ultrafast charge separation was also observed in monolayer WS2/graphene heterostructures with type I band alignment. Here we use time- and angle-resolved photoemission spectroscopy to show that ultrafast charge separation also occurs at the interface between bilayer WS2 and graphene indicating that the indirect band gap of bilayer WS2 does not affect the charge transfer to the graphene layer. The microscopic insights gained in the present study will turn out to be useful for the design of novel optoelectronic devices.

資料詳細

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言語: eng - English
 日付: 2021-02-152021-03-232021-04-29
 出版の状態: オンラインで出版済み
 ページ: -
 出版情報: -
 目次: -
 査読: 査読あり
 識別子（DOI, ISBNなど）: DOI: 10.3389/fphy.2021.668149
 学位: -

関連イベント

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訴訟

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Project information

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Project name : -
Grant ID : 654148
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : -
Grant ID : 785219
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : -
Grant ID : 881603
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : This project has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 654148 Laserlab-Europe, no. 785219 Graphene Core2, and no. 881603 Graphene Core3, from the Deutsche Forschungsgemeinschaft through CRC 925 and CRC 1277 and from UK EPSRC (Grant GR/M50447).
Grant ID : -
Funding program : -
Funding organization : -

出版物 1

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出版物名: Frontiers in Physics
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Lausanne : Frontiers Media
ページ: - 巻号: 9 通巻号: 668149 開始・終了ページ: - 識別子（ISBN, ISSN, DOIなど）: ISSN: 2296-424X
CoNE: https://pure.mpg.de/cone/journals/resource/2296-424X