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Jian-Guo Zheng, PhD

Director of Facilities, Irvine Materials Research Institute (IMRI)

Project Scientist, IMRI
University of California - Irvine
3421 Calit2 Building
Irvine, CA 92697-2800
Tel: 949-824-0441 (Office), 949-468-9980 (Cell)

Zheng directs operations of Irvine Materials Research Institute (IMRI) facilities which include

  • The new transmission electron microscopy facilities including two of the most advanced S/TEMs in the world (the NION UltraSTEM 200 HERMES and JEOL JEM-ARM300F Grand ARM), an advanced cryo-bio TEM equipped with the state-of-the-art direct electron detecting camera, and a workhorse TEM, as well as a complete range of sample preparation instruments.
  • State-of-the-art scanning electron microscopy (SEM), focused ion beam (FIB) systems, scanning probe microscopy (SPM), and X-ray diffraction (XRD) facilities.
  • Surface analysis facility including a new Kratos AXIS Supra XPS/UPS/AES/ISS spectrometer for the characterization of surface composition and electronic structure of any type of sample.
  • The new thermal, elemental, mechanical, physical, and rheological properties (TEMPR) facility.

Zheng supervises the user-training/service program, instrument maintenance and lab personnel, and collaborates with internal and external researchers.

His expertise is in advanced electron microscopy, materials characterization and materials physics. He has published more than 90 peer-reviewed scientific papers in prestigious journals including Science, Nano letters, Advanced Materials, Advanced Functional Materials, Physics Review Letters, Applied Physics Letter, Physics Review B, Journal of the American Chemical Society, Nanotechnology, ACS nano, Nanoscale, Scientific Reports and Chemistry of Materials, and given numerous talks in international conferences. These papers have been cited for more than 5000 times. He is an elected Fellow of the Royal Microscopic Society (UK) and an adjunct professor at Nanjing University (China).
Prior to joining UCI, Zheng was a research assistant professor in materials science and engineering and manager of electron probe instrumentation center (EPIC) at Northwestern University and had previously been a post-doc researcher under supervision of Prof. John Steeds at University of Bristol, UK, a senior experimental officer in electron microscopy at the University of Liverpool, UK, and an associate professor in physics at Nanjing University, China.