Prof. Chang-Ming JiangTaiwan
National Taiwan University
| 2021/08 to present | | Assistant Professor, Department of Chemistry, NTU |
| 2024/02 to present | | Adjunct Assistant Professor, Center for Emerging Materials and Advanced Devices, NTU |
| 2018 - 2021 | | Postdoctoral Researcher, Technical University of Munich |
| 2016 - 2018 | | Postdoctoral Researcher, Lawrence Berkeley National Laboratory |
| 2009/08 - 2015/08 | | Ph.D. in Chemistry, University of California, Berkeley |
| 2024 | | Distinguished Teaching Award, NTU |
| 2023 | | Outstanding Teaching Award, NTU |
Photoelectrocatalysis, thin film deposition, spectroscopy
Dynamic Landscape Engineering in Semiconducting Photoelectrodes for Light-Driven Organic Transformations
TBA TBA
Catalysis (Photocatalysis, Electrocatalysis, Photoelectrocatalysis, Thermocatalysis)/TBA
Photoelectrocatalysis offers a sustainable pathway for solar-to-chemical energy conversion by integrating light absorption with interfacial redox processes. Transition metal oxides (TMOs) such as BiVO4 combine favorable band energetics and operational stability, yet their performance remains limited by polaron-mediated charge transport losses. To overcome these constraints, we developed a chemical-solution deposition route followed by rapid thermal annealing to produce highly epitaxial BiVO4 thin films.[1] This platform enables precise control over crystallinity, interface termination, and dopant incorporation. Using resonant inelastic X-ray scattering techniques, we directly resolved orbital- and polarization-dependent phonon excitations that reveal the microscopic mechanism of polaron formation in BiVO4.
Next, we further demonstrate selective photoelectrocatalytic oxidation of benzyl alcohol to benzaldehyde in acetonitrile using BiVO4 photoanodes.[2] Chemisorption of N-hydroxy-succinimide (NHS) on surface oxygen vacancies generates interfacial trap states that promote charge recombination. Controlled dopant incorporation and electrolyte engineering effectively suppress these detrimental states, achieving a benzaldehyde production rate of 20.6 μmol cm–2 h–1 with nearly-unity Faradaic efficiency. To probe carrier dynamics, small-amplitude perturbation methods, including photoelectrochemical impedance and intensity-modulated photocurrent spectroscopies, were modeled using a transmission-line framework that captures film porosity and the evolution of surface states under applied potentials.
Together, these studies establish a coherent picture linking polaronic transport, surface energetics, and catalytic selectivity, highlighting design principles for next-generation photoelectrocatalysis.
[1] G.-Z. Tu, J.-Y. Chen, Z.-X. Zhen, Y. Li, C.-W. Chang, W.-J. Chang, H. M. Chen, C.-M. Jiang, ACS Appl. Electron. Mater. 2024, 6, 1872-1885.
[2] C.-C. Kuang, Y.-W. Chen, G.-Z. Tu, H.-L. Chen, J.-L. Fong, Y.-S. Wang, C.-W. Chang, J.-Y. Wu, T.-T. Chang, C.-H. Chang, H.-K. Tian, C.-M. Jiang, in peer review.