HPNanoPC Group
Research
Current Research Projects
High Pressure Physics and Materials Science:
Structure, electrical transport, bandgap and mechanical properties of complex oxides, chalcogenides, oxy-chalcogenides, borides and nitrides at high pressure.
AC-impedance spectra of a complex oxide in compression and decompression
High Pressure Nanoscience:
Structural, mechanical, electrical, electronic and optical properties of nanomaterials at high pressure; non-classical nanocrystal growth under high pressure conditions.
Determined phase diagram of nanocrystalline materials
High Pressure Chemistry:
High-temperature & high-pressure chemical reactions of molecules relevant to origin of life and sustainability of life at extreme conditions.
In-situ XRD patterns of small molecules showing change of structures at HTHP conditions
Computational Materials Science:
Study of electronic, atomic and crystal structures of both bulk and nanomaterials at ambient and/or compression conditions.
DFT predicted shapes pf molecular orbitals in cubic and tetragonal structures of a complex oxide
Research Facilities
We purchase from time to time scientific instruments to our HPSTAR labs, including shared large facilities (such as X-ray diffractometer, PPMS and Raman spectrometer) and instruments housed in PIs' individual labs. So far, our group has acquired an Agilent Cary 7000 UV-VIS-NIR spectrometer, an Agilent 8454 UV-VIS spectrometer, a Micrometrics NanoPlus-1 particle size analyzer, a Nanjing Dazhan DSC-100, a Wuhan Corrtest CS353 AC-impedance instrument, a Parr-4791 high temperature & high pressure reactor, several furnaces for syntheses of samples, etc.
Agilent Cary UV-VIS-NIR spectrometer; ZEISS microscopy
Micrometrics particle size analyzer; Agilent UV-vis spectrometer; Parr HTP reactor
In addition, national and international synchrotron facilities are indispensable for our research. Currently, we make use of following synchrotron facilities for our research: Shanghai Synchrotron Radiation Facility (SSRF; Shanghai, China), Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory (Berkeley, California, USA), Advanced Photon Source (APS) at Argonne National Laboratory (Chicago, Illinois, USA), National Synchrotron Light Source (NSLS-II) at Brookhaven National Laboratory (Upton, New York, USA), and Cornell High Energy Synchrotron Source (CHESS) at Cornell University (Ithaca, New York, USA).
ALS-12.2.2 high pressure XRD beamline
ALS-12.3.2 micro-XRD beamline
ALS-7.3.3 Small Angle X-ray Scattering (SAXS) beamline
APS-11-ID-D time-resolved X-ray absorption spectroscopy (XAS) and
wide angle X-ray scattering (WAXS) beamline
Research Collaborations
We have collaborations with many researchers, including
Dr. Jill Banfield, member of National Academic of Science, Professor of University of California Berkeley, USA
Dr. Benjamin Gilbert, Staff Scientist of Lawrence Berkeley National Laboratory, USA
Dr. Qiwu Shi, Professor of Sichuan University, China
Dr. Zhi Su, Professor of Nanjing Normal University, China
Last update July, 2018