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Research fields

Publications

News

  • Waste-to-energy technology

  • Energy transformation

  • Interfacial dynamics

  • 9th April 2026: Awarded HK Tech 300 Seed Fund

  • 4th Dec 2025: Asia Exhibition of Innovations and Inventions (AEII) Hong Kong

  • 17th Nov 2025: CityU Meeting​

  • 17th Nov 2025: Prof. Dirk M. Guldi

  • 7th Feb 2023: CityU News

  • Advanced Materials, 2026, 38, e18557

  • Advanced Energy Materials 2024, 14, 2402785

  • Advanced Materials, 2023, 35, 2207835

  • Small Methods 2022, 2200326

  • Advanced Functional Materials 2020, 30 (52), 2070343

  • Advanced Optical Materials 2020, 8 (20), 2001023

  • Nano Energy 2020, 73, 104752

Laboratory profile
 
Prof. Sam H.-Y. HSU’s research interests involve the material design, synthesis, processing, imaging, spectroscopy as well as energy and environmental applications, aiming to explore fundamental properties and dynamic interactions of organic and inorganic materials for developing efficient energy-conversion and energy-saving processes. He has keen interests in photoinduced charge transfer processes, interfacial electron transfer, electrochemical hydrogen generation, and photoredox reactions for electricity generation, solar fuel production, electrochemiluminescence (ECL), wastewater treatment as well as food waste management. The investigations between material phenomena and device performance rely heavily on experimental and theoretical concepts of energy and environmental engineering, consisting of photophysics, electrochemistry, photoelectrochemistry by utilizing scanning photoelectrochemical microscopy (SECM) imaging, ultrafast transient absorption (TA), time-resolved photoluminescence spectra (TRPL) and so forth. Current research interests in his group include the following:

  • Energy engineering (e.g., solar fuels, photovoltaics, electrochemiluminescence (ECL), and optoelectronic devices)

  • Environmental engineering (e.g., wastewater treatment, food waste treatment, and Organic matter degradation)

  • Material design (e.g., alloy, organometallics, biomaterials, nanomaterials, perovskites and metallopolymers)

  • Dynamic interfacial interaction by utilizing photophysical, photochemical, electrochemical and photoelectrochemical techniques.

Address : P6813, Yeung Kin Man Academic Building, City University of Hong Kong;  Email:sam.hyhsu@cityu.edu.hk

HSU Research Group © 2025 - All Rights Reserved : Prof. Sam H. Y. HSU

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