TY - GEN
T1 - Visualization of environment-dependent carrier dynamics on 2D transition metal dichalcogenides using ultrafast pump-probe microscopy
AU - Luo, Chih Wei
N1 - Publisher Copyright:
© 2022 IEEE.
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 - http://www.scopus.com/inward/record.url?scp=85145569690&partnerID=8YFLogxK
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 -