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1. 시간 분해 분광법을 비롯한 다양한 분광학적 기법을 이용하여 광촉매, 광전극, 태양전지 등 에너지 변환 소재에서 일어나는 광여기 전하 캐리어 다이나믹스와 계면 반응 메커니즘을 규명.
Investigation of photoexcited charge-carrier dynamics and interfacial reaction mechanisms in energy-conversion materials, including photocatalysts, photoelectrodes, and solar cells, using advanced time-resolved spectroscopic techniques.
1) Estimations of the Activation Energies for the Charge Transfers of the Long-Lived Holes at the Semiconductor/Electrolyte Interfaces of α-Fe2O3 and α-Fe2O3/Co-Pi Photoanodes. The Journal of Physical Chemistry Letters 2025; 16: 9993
2) Monitoring Charge Transfer Dynamics of Surface Trapped Holes in ZnO Surface Utilized for Ethanol Oxidation Using Heterodyne Transient Grating Spectroscopic Techniques. The Journal of Physical Chemistry C 2024; 128: 2990-2996
3) A New Strategy for Monitoring the Charge Transfer from Perovskite Thin Films to Electron Transport Layers Using a Heterodyne Transient Grating Technique. Physical Chemistry Chemical Physics 2023; 25: 14742-14748
2. 새로운 분광학적 기법을 개발하여 광여기 전하 캐리어 다이나믹스를 규명하기 위한 새로운 방법론을 제시.
Development of novel spectroscopic methods that provide new approaches for investigating photoexcited charge-carrier dynamics.
1) Development of Charge Carrier-Selective Heterodyne Transient Grating Spectroscopic Technique and Its Application in the Distinction of Surface Trap States in Hematite. Physical Chemistry Chemical Physics 2023; 25: 11981-11985
3. 광전기화학적 물분해를 위한 고효율 광전극 소재 및 소자를 개발.
Design and development of highly efficient photoelectrodes for photoelectrochemical water splitting.
1) Investigation of the Origin of the Enhanced Photoelectrochemical Performance of Gradient W-doped Bismuth Vanadate (BiVO4) photoanodes. International Journal of Hydrogen Energy 2024; 54: 1544-1551
2) Sequential Modifications of the Surface of Hematite (α-Fe2O3) Photoanode with Amorphous Nickel Iron Oxide (NiFeOx) and Cobalt Phosphate (Co-Pi). Journal of Photochemistry and Photobiology A: Chemistry 2023; 437: 114478
3) Revealing the Roles of Surface treatments on Hematite (α-Fe2O3) Photoanode in the Shift of the Onset Potential. Journal of Photochemistry and Photobiology A: Chemistry 2023; 445: 115037
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