Jiaqing He


Research Assistant Professor, Chemistry
Northwestern University
Room 1137, Cook Hall
2220 Campus Drive
Evanston IL, 60208-3108

Phone: (847) 491-7794 (L)
Facsimile: (847) 467-6573

Email: jiaqing-he@northwestern.edu

Educational Background

2010-present Research Assistant Professor, Northwestern University, Evanston, IL
2008-2010 Research Associate, Northwestern University, Evanston, IL
2004-2008 Research Associate, Brookhaven National Laboratory, Upton, New York
1998-2004 Ph.D. in Physics, Institute of Solid Physics, Juelich Research Center, Juelich Germany and Department of Physics, Wuhan University, Wuhan, China

Research Objective(s) and Approach

  • Implementation of HAADF, HREM, EELS and GIF imaging of interfaces, defects and thin films, associated with thermoelectrics and chalcogenide materials.
  • Novel microscopy and analysis for nanostructures and nanopatterns of inorganics.

References and Publications

  • J.Q. He, J. Sootsman,S.Girrad,J.C. Zheng, J.G. Wen, Y. Zhu, M.G. Kanatzidis and V.P. Dravid, "On the Origin of Increased Phonon Scattering in PbTe Based Thermoelectric Materials," Journal of the American Chemical Society, Vol. 132 (25), pp 8669-8675 (2010)
  • K. Ahn, M.K. Han, J.Q. He, J. Androulakis, S. Ballikaya, C. Uher, V.P. Dravid, M.G. Kanatzidis, "Enhancement in the Thermoelectric Figure of Merit through Nanostructuring in the PbTe-CdTe System," Journal of the American Chemical Society, Vol. 132 (14): pp: 5227-5235 (2010)
  • J.Q. He, S.N. Girard, M.G. Kanatzidis, V.P. Dravid," Microstructure-Lattice Thermal Conductivity Correlation in Nanostructured PbTe0.7S0.3 Thermoelectric Materials," Advanced Functional Materials, Vol. 20: pp: 764-772 (2010)
  • J.R. Sootsman, J.Q. He, V.P. Dravid, C. Li, D. Vermeulen, C. Uher, M.G. Kanatzidis, "Microstructure and Thermoelectric Properties of Mechanically Robust PbTe-Si Eutectic Composites," Chemistry of Materials Vol. 22(3):pp:869-875 (2010)
  • J.Q. He, A. Gueguen, J. Sootsman, J. Zheng, L. Wu, Y. Zhu, M.G. Kanatzidis, V.P. Dravid, "Role of self-organization, nanostructuring, and lattice strain on phonon transport in NaPb18-xSnxBiTe20 thermoelectric materials," Journal of the American Chemical Society,vol. 131 (49):pp:17828-35 (2009)

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