Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy

Chih Wei Luo

doi:10.1109/IPC53466.2022.9975571

Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy

Chih Wei Luo^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Recently, the great economic and environmental interest for the production of the clean fuel hydrogen through water splitting is worldwide promoted, practically using 2D transition metal dichalcogenides (TMDs), e.g., MoS2. In this study, we investigated the ultrafast carrier dynamics of MoS2 in air and liquid. Moreover, we also in situ probed the ultrafast carrier dynamics at 2D atomic layer MoS2/liquid electrolyte interface for hydrogen evolution reaction (HER). The several-picoseconds relaxation component in transient transmittance changes (Delta T/T) has been identified to indicate the catalytic activation time and shows the distribution of activation sites during HER.

Original language	English
Title of host publication	2022 IEEE Photonics Conference, IPC 2022 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665434874
DOIs	https://doi.org/10.1109/IPC53466.2022.9975571
State	Published - 2022
Event	2022 IEEE Photonics Conference, IPC 2022 - Vancouver, Canada Duration: 13 Nov 2022 → 17 Nov 2022

Publication series

Name	2022 IEEE Photonics Conference, IPC 2022 - Proceedings

Conference

Conference	2022 IEEE Photonics Conference, IPC 2022
Country/Territory	Canada
City	Vancouver
Period	13/11/22 → 17/11/22

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

HER
catalyst
hydrogen evolution reaction
transient transmittance changes
ultrafast carrier dynamics

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10.1109/IPC53466.2022.9975571

Cite this

Luo, C. W. (2022). Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy. In 2022 IEEE Photonics Conference, IPC 2022 - Proceedings (2022 IEEE Photonics Conference, IPC 2022 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IPC53466.2022.9975571

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title = "Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy",

abstract = "Recently, the great economic and environmental interest for the production of the clean fuel hydrogen through water splitting is worldwide promoted, practically using 2D transition metal dichalcogenides (TMDs), e.g., MoS2. In this study, we investigated the ultrafast carrier dynamics of MoS2 in air and liquid. Moreover, we also in situ probed the ultrafast carrier dynamics at 2D atomic layer MoS2/liquid electrolyte interface for hydrogen evolution reaction (HER). The several-picoseconds relaxation component in transient transmittance changes (Delta T/T) has been identified to indicate the catalytic activation time and shows the distribution of activation sites during HER.",

keywords = "HER, catalyst, hydrogen evolution reaction, transient transmittance changes, ultrafast carrier dynamics",

author = "Luo, \{Chih Wei\}",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Photonics Conference, IPC 2022 ; Conference date: 13-11-2022 Through 17-11-2022",

year = "2022",

doi = "10.1109/IPC53466.2022.9975571",

language = "English",

series = "2022 IEEE Photonics Conference, IPC 2022 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2022 IEEE Photonics Conference, IPC 2022 - Proceedings",

address = "美國",

}

Luo, CW 2022, Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy. in 2022 IEEE Photonics Conference, IPC 2022 - Proceedings. 2022 IEEE Photonics Conference, IPC 2022 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 2022 IEEE Photonics Conference, IPC 2022, Vancouver, Canada, 13/11/22. https://doi.org/10.1109/IPC53466.2022.9975571

Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy. / Luo, Chih Wei.
2022 IEEE Photonics Conference, IPC 2022 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2022. (2022 IEEE Photonics Conference, IPC 2022 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy

AU - Luo, Chih Wei

PY - 2022

Y1 - 2022

N2 - Recently, the great economic and environmental interest for the production of the clean fuel hydrogen through water splitting is worldwide promoted, practically using 2D transition metal dichalcogenides (TMDs), e.g., MoS2. In this study, we investigated the ultrafast carrier dynamics of MoS2 in air and liquid. Moreover, we also in situ probed the ultrafast carrier dynamics at 2D atomic layer MoS2/liquid electrolyte interface for hydrogen evolution reaction (HER). The several-picoseconds relaxation component in transient transmittance changes (Delta T/T) has been identified to indicate the catalytic activation time and shows the distribution of activation sites during HER.

AB - Recently, the great economic and environmental interest for the production of the clean fuel hydrogen through water splitting is worldwide promoted, practically using 2D transition metal dichalcogenides (TMDs), e.g., MoS2. In this study, we investigated the ultrafast carrier dynamics of MoS2 in air and liquid. Moreover, we also in situ probed the ultrafast carrier dynamics at 2D atomic layer MoS2/liquid electrolyte interface for hydrogen evolution reaction (HER). The several-picoseconds relaxation component in transient transmittance changes (Delta T/T) has been identified to indicate the catalytic activation time and shows the distribution of activation sites during HER.

KW - HER

KW - catalyst

KW - hydrogen evolution reaction

KW - transient transmittance changes

KW - ultrafast carrier dynamics

UR - https://www.scopus.com/pages/publications/85145569690

U2 - 10.1109/IPC53466.2022.9975571

DO - 10.1109/IPC53466.2022.9975571

M3 - Conference contribution

AN - SCOPUS:85145569690

T3 - 2022 IEEE Photonics Conference, IPC 2022 - Proceedings

BT - 2022 IEEE Photonics Conference, IPC 2022 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2022 IEEE Photonics Conference, IPC 2022

Y2 - 13 November 2022 through 17 November 2022

ER -

Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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