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Zezhen (Jay) Cheng
Post Doctorate RA

Dr. Zezhen (Jay) Cheng is a post-doctoral research associate with the Terrestrial-Atmospheric Processes Integrated Research Platform. His research uses microscopy, spectroscopy, and other instruments to understand the physical, chemical, and optical properties of atmospheric aerosols and their evolution during the atmospheric process. Cheng is also interested in heterogeneous ice nucleation, with the goal to reduce the current high uncertainty in the aerosol climate effects.

Research Interests

  • Atmospheric aerosols and their evolution during the atmospheric process
  • Heterogeneous ice nucleation


  • PhD in Engineering, University of Georgia
  • ME in Chemical Engineering, Carnegie Mellon University
  • BS in Chemical and Biomolecular Engineering, The Ohio State University



Atwi, K., A. Mondal, J. Pant, Z. Cheng, O. El Hajj, I. Ijeli, H. Handa, and R. Saleh. 2021. “Physicochemical Properties and Cytotoxicity of Brown Carbon Produced under Different Combustion Conditions.” Atmospheric Environment 244.


Cheng, Z., K. Atwi, O. E. Hajj, I. Ijeli, D. A. Fischer, G. Smith, and R. Saleh. 2020. “Discrepancies between Brown Carbon Light-Absorption Properties Retrieved from Online and Offline Measurements.” Aerosol Science and Technology.

Cheng, Z., K. M. Atwi, Z. Yu, A. Avery, E. C. Fortner, L. Williams, F. Majluf, J. E. Krechmer, A. T. Lambe, and R. Saleh. 2020. “Evolution of the Light-Absorption Properties of Combustion Brown Carbon Aerosols Following Reaction with Nitrate Radicals.” Aerosol Science and Technology 54 (7): 849-863.


Cheng, Z., K. Atwi, T. Onyima, and R. Saleh. 2019. “Investigating the Dependence of Light-Absorption Properties of Combustion Carbonaceous Aerosols on Combustion Conditions.” Aerosol Science and Technology 53 (4): 419-434.


Saleh, R., Z. Cheng, and K. Atwi. 2018. “The Brown-Black Continuum of Light-Absorbing Combustion Aerosols.” Environmental Science and Technology Letters 5 (8): 508-513.