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Dr. Jun Jiao

Science Building 2, #376

Dr. Jun Jiao holds an M.S. in Physics and a Ph.D. in Materials Science and Engineering from the University of Arizona and is currently a professor of physics and electrical and computer engineering. She is also the director of the Center for Electron Microscopy and Nanofabrication at Portland State University. Dr. Jiao's principal research interests concern nanoscale materials and the application of analytical techniques of electron microscopy.

Dr. Zhiqiang (Tony) Chen

Lab Manager/Research Associate Professor
Science Building 1, #33
zhiqiang 'at'
Tony joined CEMN as the facility manager in September 2009, after working as a research scientist at Monsanto Company for two years. Dr. Chen received his Ph.D. in materials science from the University of Birmingham. He spent five years at the University of California, Santa Barbara and Brookhaven National Laboratory doing postdoctoral research. Following this, he worked as the chief scientist at the University of Louisville, in charge of TEM, SEM, XPS and XRD facilities and analytical services. Tony’s research interests are focused on microstructural characterization using electron microscopy in materials science, nanoscience and technology.

Greg Baty

Research Technician
Science Building 1, #11
gbaty "at'
Greg Baty is a Research Technician at the Center for Electron Microscopy and Nanofabrication. He conducts new user training and provides contract analytical services on the following instruments: FEI Sirion XL30 SEM, Zeiss Sigma VP SEM, FEI Phenom SEM, KJ Lesker Axis PVD, EDS, WDX and EBSD. He spent over 10 years as an industrial process engineer in the high tech industry. Greg's expertise includes lithography, chemical etching and industrial automation.

Matthew Hughes

Research Assistant
mhug 'at'

Gabriel Eng

Student Worker
eng3 'at'

Gabriel Eng is an undergraduate in the physics department at Portland State University. In addition to his studies, he works as a student worker at the Center for Electron Microscopy and Nanofabrication at Portland State University.  He provides analysis and training for internal and external lab users in the fields of Transmission Electron Microscopy, X-ray Energy Dispersive Spectroscopy, and X-Ray Photoelectron Spectroscopy. His research includes fabrication and characterization of semiconductor devices as well as the automation of electron diffraction image capture and analysis. He is a member of the American Physical Society and the Honors Program at Portland State University. His other interests include aviation, photography, music, and digital media production.


  • Andrew Barnum (Pacific Light Technologies)
  • Jianfeng Wu (Lattice Semiconductor)
  • Aaron Besser (Intel)
  • Lindsey Maier (University of Washington NTUF)
  • Chunfei Li (Clarion University of Pennsylvania)