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Professional Qualifications

  • Fellow of The Royal Society of Chemistry

Research Overview

Our research focuses on the development of ultrafast time-resolved spectroscopic techniques and the utilization of these techniques to elucidate the dynamics and structure of photo-generated short-lived transient species to better understand the mechanisms of relevant photophysical and photochemical reactions.

Academic and Professional Experiences

  • Fellow of the Royal Society of Chemistry (FRSC)

Research Interests

  • Time-resolved Spectroscopy
  • Photophysics
  • Photochemistry


  • Croucher Fellowship for Postdoctoral Research
  1. Chan CTL, Ma C, Chan RCT, Ou HM, Xie HX, Wong AKW, Wang ML, Kwok WM. A long lasting sunscreen controversy of 4-aminobenzoic acid and 4-dimethylaminobenzaldehyde derivatives resolved by ultrafast spectroscopy combined with density functional theoretical study. Physical Chemistry Chemical Physics. 2020;22(15):8006-20.
  2. Ma CS, Chan RCT, Chan CTL, Wong AKW, Kwok WM. Real-time Monitoring Excitation Dynamics of Human Telomeric Guanine Quadruplexes: Effect of Folding Topology, Metal Cation, and Confinement by Nanocavity Water Pool. The Journal of Physical Chemistry Letters. 2019;10(24):7577-85.
  3. Ma CS, Chan RCT, Chan CTL, Wong AKW, Chung BPY, Kwok WM. Fluorescence and Ultrafast Fluorescence Unveil the Formation, Folding Molecularity, and Excitation Dynamics of Homo-Oligomeric and Human Telomeric i-Motifs at Acidic and Neutral pH. Chemistry - An Asian Journale. 2018;13(23):3706-17. 
  4. Ma C, Ou YQ, Chan CTL, Wong AKW, Chan RCT, Chung BPY, Jiang C, Wang ML, Kwok WM. Nonradiative dynamics determined by charge transfer induced hydrogen bonding: a combined femtosecond time-resolved fluorescence and density functional theoretical study of methyl dimethylaminobenzoate in water. Physical Chemistry Chemical Physics. 2018;20(2):1240-51.
  5. Ha E, Liu W, Wang LY, Man HW, Hu LS, Tsang SCE, Chan CTL, Kwok WM, Lee LYS, Wong KY. Cu2ZnSnS4/MoS2-Reduced Graphene Oxide Heterostructure: Nanoscale Interfacial Contact and Enhanced Photocatalytic Hydrogen Generation. Scientific Reports. 2017;7:39411.
  6. Chow PK, Cheng G, Tong GSM, Ma C, Kwok WM, Ang WH, Chung CYS, Yang C, Wang F, Che CM. Highly luminescent palladium(II) complexes with sub-millisecond blue to green phosphorescent excited states. Photocatalysis and highly efficient PSF-OLEDs. Chemical Science. 2016;7(9):6083-98. 
  7. Ma C, Cheng CCW, Chan CTL, Chan RCT, Kwok WM. Remarkable effects of solvent and substitution on the photo-dynamics of cytosine: a femtosecond broadband time-resolved fluorescence and transient absorption study. Physical Chemistry Chemical Physics. 2015;17(29):19045-57.
  8. Cheng G, So GKM, To WP, Chen Y, Kwok CC, Ma C, Guan X, Chang X, Kwok WM, Che CM. Luminescent zinc(ii) and copper(i) complexes for high-performance solution-processed monochromic and white organic light-emitting devices. Chemical Science. 2015;6(8):4623-35.
  9. Zou T, Liu J, Lum CT, Ma C, Chan RCT, Lok CN, Kwok WM, Che CM. Luminescent cyclometalated platinum(II) complex forms emissive intercalating adducts with double-stranded DNA and RNA: Differential emissions and anticancer activities. Angewandte Chemie - International Edition. 2014;53(38):10119-3.
  10. Lee SH, Chan CTL, Wong KMC, Lam WH, Kwok WM, Yam VWW. Design and synthesis of bipyridine platinum(II) bisalkynyl fullerene donor-chromophore-acceptor triads with ultrafast charge separation. Journal of the American Chemical Society. 2014;136(28):10041-52.
  1. "An introduction to time-resolved resonance Raman spectroscopy and its application to reactive intermediates" D. L. Phillips, W. M. Kwok and C. Ma, in: Reviews of Reactive Intermediate Chemistry, Chapter 3, pp. 123-182, edited by M. S. Platz, R. A. Moss and M. Jones Jr. (John Wiley & Sons Inc., Hoboken, New Jersey, 2007).

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