Wei-Shun Chang


Wei-Shun Chang, PhD

Assistant Professor

Chemistry & Biochemistry

Single Particle Imaging and Spectroscopy Group



Dion 112


2007University of Texas at AustinPhD
1998National Taiwan UniversityMS
1996National Taiwan UniversityBS


  • CHM 315 Physical Chemistry I
  • CHM 318 Physical Chemical Measurements I




Research awards

  • $ 190,405 awarded by National Science Foundation for Collaborative Research: Harnessing the chirality matching principle for enhanced catalytic reactivity
  • $ 358,432 awarded by Office of Naval Research for UMassD MUST IV: Active Optical Camouflage with Internal Communications
  • $ 351,682 awarded by National Science Foundation for Single-Molecule Specific Voltammetry: Quantifying Reaction Products of Electrocatalysis at Single Particle Level
  • $ 399,666 awarded by Office of Naval Research for UMassD MUST I: Advances in Underwater Marine Technology: New Solutions to Biofouling
  • $ 197,813 awarded by Office of Naval Research for UMassD MUST I: Anti-biofouling Property and Lifetime of Super-Hydrophobic Surfaces in Marine Environment


Research interests

  • Plasmonics and metamaterials
  • Electocatalysis and photocatalysis
  • Optoelectronics (2D materials, hybrid structures)
  • Chiral metamaterials
  • Single molecule/particle spectroscopy development

Wei-Shun Chang is an Assistant Professor in the Department of Chemistry and Biochemistry at UMass Dartmouth. He obtained B.S. and M.S. in Chemistry from National Taiwan University in 1996 and 1998, respective. After working in the semiconductor industry for a few years, he studied the electro-optical properties of conjugated polymer supervised by Prof. Paul Barbara in the University of Texas at Austin and received Ph. D. in Physical Chemistry in 2007. He joined Link group at Rice University in 2007 as a postdoctoral researcher and promoted to a research fellow since 2012. He joined UMass Dartmouth in 2018. His research interest is to study optical properties of plasmonic nanomaterials at single particle level for the applications of renewable energy, optical sensing, and medical treatment. He has developed steady-state and time-resolved spectroscopic techniques to investigate collective optical properties of plasmonic nanoparticles, plasmon-mediated chemistry, chiral plasmonics, and plasmon optomechanics. In the MUST program, he will develop high-sensitivity fluorescence imaging technique to probe the bacterial population in biofilm and explore novel nanomaterials to suppress the growth of biofilm.

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