Faculty Profile
 
  WEI Shiqiang
     
Department: National Synchrotron Radiation Laboratory
Mailing Address:
National Synchrotron Radiation Laboratory,University of Science and Technology of China, 443 Huangshan Rd, Hefei, Anhui, PR China
Postal Code:
230029
Phone:
+86-551-63601997
Fax:
86-0551-65141078
Homepage:
http://xafs.nsrl.ustc.edu.cn
 
       

Research Profile

    Shiqiang Wei, male, born in Jan.1964, professor, Ph.D. supervisor, winner of National Natural Science Funds for Distinguished Young and CAS Hundred Talents Program, mainly does research on construction and application of synchrotron radiation X-ray absorption fine structure spectroscopy (XAFS) technique. Sep.1979-Jun.1983, bachelor’s degree, Dept. of Chemistry, Guangxi Normal University; Sep.1986-May 1992, master’s degree and doctoral degree, Dept. of Physical Chemistry, USTC, starting to research on synchrotron radiation XAFS; did postdoctoral research in Fundamental Physics Center of USTC in July 1992; was appointed as associate professor in July 1994; Nov.1996-May 1999, postdoctoral fellow and visiting research fellow, National Laboratory for High Energy Physics (KEK,PF), Japan, taking part in the research on construction and application of BL-13B surface XAFS station in Japan's KEK Photon Factory; came back to China on CAS Hundred Talents Program and was appointed as professor in June 1999,and took charge of the transformation and management of XAFS station of National Synchrotron Radiation Laboratory. Since 2000 he has been invited to visit Spring-8 National Synchrotron Radiation Laboratory (Japan), European Synchrotron Radiation Facility (France), Max-Lab Synchrotron Radiation Laboratory (Sweden), Elletra National Synchrotron Radiation Laboratory (Italy), Siberia Synchrotron Radiation Laboratory (Russia), Brookhaven National Synchrotron Light Source (USA) and Synchrotron Radiation Research Center (Taiwan, China), and has built good relationship with international peer experts and extensive international cooperation. 
In recent years, he has published over 10 papers on high impact factor journals like J. Am. Chem. Soc., Appl. Phys. Lett., Phys. Rev. B, J. Phys. Chem. C, J. Synchro. Rad., etc, and over 200 SCI papers. He won the honor “Jianghuai Top 10 Outstanding Young” in 2003, won the Second Prize of USTC KC Wong Award in 2004 and National Natural Science Funds for Distinguished Young in Sep.2007. He is currently a member of council of China Synchrotron Radiation Committee, member of academic committee of Hefei National Synchrotron Radiation Laboratory, member of academic committee of Beijing National Synchrotron Radiation Laboratory, member of academic degree committee of USTC, deputy director of academic degree committee of Nuclear science and technology and member of Anhui committee of the CPPCC.
There are over 30 members in the research group led by Prof. Wei, including 3 professors, 5 associate professors, 2 assistant research fellows, 2 technicians and 21 Ph.D. and master students. They have set up Hefei XAFS Research Center, made the performance index of XAFS station they transformed to reach the international level, developed software package for data analysis of XAFS which has an independent intellectual property, trained numbers of XAFS researchers and fostered a number of technicians for synchrotron radiation equipment of Beijing and Shanghai, and established the XAFS synchrotron radiation research platform which plays a good supportive role for many other users to achieve high level research findings. In the research on diluted magnetic semiconductors, he was the first to use the method of XAFS combined with First Principles to determine the distribution of magnetic metal ions in the lattice and put forward a view of recognize the magnetic source from theoretical and experimental aspects. In the research on structure of semiconductor quantum system, he was the first to put forward the optimized multiple scattering XAFS method and apply it to study the high coordination shell structure of central atom, and the research achievement was appraised by international peers. He also did research in the field of life science: explore the changes in local structure of metal ions before and after the functional changes of metalloproteins, which has significance in understanding how metal ions influence the functional expression of protein. In order to know the kinetic mechanism of reaction and process of change, he applied the method of in situ high temperature and low temperature to the experiments on catalysis, high-temperature superconducting materials and diluted magnetic semiconductors with in situ varied temperature, studied the changes and phase transition in local structures of atoms and electrons of advanced functional materials under conditions of function transition temperature and explored the nature of catalysis, superconductivity and spinning.
Currently he is undertaking the project “Nuclear Technology and Application” supported by National Natural Science Funds for Distinguished Young, “Time-resolved Synchrotron Radiation Technology and Application” supported by National Natural Science Funds for Key Projects and “Application of Synchrotron Radiation in Major Scientific Issues” of CAS. These researches aim to master the key technologies in Pump-Probe measurement of femtosecond time-resolved synchrotron radiation and submicron spatial resolution three-dimensional microscopic imaging, to set up a public research platform for ultrafast time-resolved and high spatial resolved synchrotron radiation with special Chinese characteristics and innovations, to study the dynamics of process of protein folding, growth and self-assembly process of nano-materials and diluted magnetic semiconductor spin inversion process by using time resolution technology, and do in situ, real-time, dynamic research on the structures and functions of cells closed related to human body’s health and major diseases by using time resolution technology to reveal the nature of major life activities and spintronics devices and growth patterns of nano-structured materials.
Main research fields: 
1. basic theories and data analysis of XAFS method
XAFS basic principles; single scattering and multiple scattering theory; XAFS data analysis methods and development 
2. construction of synchrotron radiation XAFS technology
XAFS beamline and experiment station building; XAFS time resolution and spatial resolution experimental techniques;  high temperature and low temperature in situ XAFS experimental techniques 
3. application of synchrotron radiation XAFS method in study of condensed matter structure
research on diluted magnetic semiconductor and nano-structure materials;  research on Ge-Si (GaSb, InSb) base quantum system materials; high and low temperature in situ XAFS study of the structure and properties of functional materials; ultrafine amorphous alloy catalysts , studies of solution and metal protein, advanced functional materials
Main research projects: 
1. Synchrotron Radiation Time Resolution Technology and Application
Key Project of National Natural Science Foundation (2007-2010)
project leader: Prof. Wei Shiqiang, funding sum: RMB 2.2 million, in progress
2. Nuclear Technology and Application
National Natural Science Funds for Distinguished young (2008-2011)
project leader: Prof. Wei Shiqiang, funding sum: RMB 2 million, in progress
3. Synchrotron Radiation XAFS Study on Electronic and Spatial Structure of Diluted Magnetic Semiconductor Spin Electronic Materials 
Sino-Russia cooperative project of National Natural Science Foundation (2006-2007)
project leader: Prof. Wei Shiqiang, funding sum: RMB 100000, completed
4. Grazing Incidence Fluorescence XAFS Study of Structure and Properties of Semiconductor  Quantum System
project of National Natural Science Foundation (2004-2006)
project leader: Prof. Wei Shiqiang, funding sum: RMB 340000, completed
5. Synchrotron Radiation Fluorescence XAFS Study of Micro-structure of Semiconductor Quantum System
Fund for the Doctoral Program of the Ministry of Education (2004-2006)
project leader: Prof. Wei Shiqiang, funding sum: RMB 60000, completed
6. Preparation of Semiconductor Low-dimensional Quantum Materials and Synchrotron Radiation Research
key project of Institute of High Energy Physics, CAS (2004-2006)
project leader: Prof. Wei Shiqiang, funding sum: RMB 250000, completed
7. Synchrotron Radiation Technological Research on Surface Melting Mechanism
project of National Natural Science Foundation (2002-2004)
project leader: Prof. Wei Shiqiang, funding sum: RMB 240000, completed
8. Synchrotron Radiation XAFS Characterization Ge / Si (Fe / Cu) Quantum System Structure
Sino-Russia cooperative project of National Natural Science Foundation (2003-2004)
project leader: Prof. Wei Shiqiang, funding sum: RMB 106000, completed
9. In Situ EXAFS Study on M-P Ultrafine Amorphous Alloy Structure and Catalytic Properties
project of National Natural Science Foundation (1997-1999)
project leader: Prof. Wei Shiqiang, funding sum: RMB 130000, completed
10. Research on Melt Droplets and Supercooled Structure
project of National Natural Science Foundation (1997-1999)
project leader: Prof. Wei Shiqiang, funding sum: RMB 110000, completed
11. Synchrotron Radiation Study of Structure and Properties of Semiconductor  Quantum System
CAS Innovation Project (2003-2005)
project leader: Prof. Wei Shiqiang, funding sum: RMB 200000, completed
12. Construction of Synchrotron Radiation XAFS Technology and Application
project of CAS Hundred Talents Program (1999-2002)
project leader: Prof. Wei Shiqiang, funding sum: RMB 2 million, completed
13. Development of Synchrotron Radiation Fluorescence XAFS Device
Project of CAS Talents Base Foundation (1997-2001)
project leader: Prof. Wei Shiqiang, funding sum: RMB 200000, completed
14. In Situ Synchrotron Radiation Study on Microscopic Mechanism of Semiconductor Solid - liquid Phase Change 
Key Project of Building First-class University (2002-2004)
project leader: Prof. Wei Shiqiang, funding sum: RMB 200000, completed
15. Synchrotron Radiation Study on Structure and M agnetism Of III-V and IV Diluted Magnetic Semiconductors
Key project of National Synchrotron Radiation Laboratory (2006-2008)
project leader: Prof. Wei Shiqiang, funding sum: RMB 500000, completed.
 
     
Selected Publications
1) Understanding the Nature of the Kinetic Process in a VO2 Metal-Insulator Transition , Physical Review Letters , 2010 , 105, 226405
2) Insights into Initial Kinetic Nucleation of Gold Nanocrystals , J. Am. Chem. Soc. , 2010 , 132, 6996
3) Valence State-Dependent Ferromagnetism in Mn-Doped NiO Thin Films , Adv. Mater. , 2012, , 24, 353–357
4) Tuning the Spin State of Cobalt in a Co–La Heterometallic Complex through Controllable Coordination Sphere of La , Angewandte Chemie International Edition , 2011 , 50,5504 –5508
5) Room-Temperature Ferromagnetic Silver Vanadium Oxide Ag1.2V3O8A Magnetic Semiconductor Nanoring Structure , Advanced Functional Materials , 2010 , 20,3666
6) From VO2 (B) to VO2 (A) nanobelts: first hydrothermal transformation,spectroscopic study and first principles calculation , Phys. Chem. Chem. Phys. , 2011, , 13, 15873–15881
7) Mediating distribution of magnetic Co ions by Cr-codoping in (Co,Cr): ZnO thin films , Applied Physics Letters , 2010 , 97, 042504
8) Hexagonal BaTi1-xCoxO3 phase stabilized by Co dopants , Appl. Phys. Lett. , 2010 , 96, 091905
9) A charge-passivated codoping approach for enhancing ferromagnetism and electron transport on rutile TiO2(110) surface , Appl. Phys. Lett. , 2009 , 95, 052508
10) Quantitative study of interior nanostructure in hollow zinc oxide particles on the basis of nondestructive x-ray nanotomography , Appl. Phys. Lett. , 2009 , 95, 053108
11) Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films , Appl. Phys. Lett. , 2009 , 94, 042508
12) Structures and magnetic properties of (Fe, Li)-codoped NiO thin films , Appl. Phys. Lett. , 2008 , 92, 052508
13) Structures and magnetic properties of wurtzite Zn1-xCoxO dilute magnetic semiconductor nano-composites , Appl. Phys. Lett. , 2007 , 90, 102108
14) The role of Zn interstitials in cobalt-doped ZnO diluted magnetic semiconductors , Appl. Phys. Lett. , 2010 , 96, 211905
15) Structures and magnetic properties of (Mn, N)-codoped ZnO thin films , Appl. Phys. Lett. , 2007 , 90, 242509
16) Zn vacancy induced room-temperature ferromagnetism in Mn-doped ZnO , Appl. Phys. Lett. , 2007 , 91, 062113
17) Local structure around Mn atoms in cubic (Ga, Mn)N thin films probed by fluorescence X-ray absorption fine structure , Appl. Phys. Lett. , 2006 , 88, 051905
18) Direct determination of Mn occupations in Ga1-xMnxN dilute magnetic semiconductors by x-ray absorption near-edge structure spectroscopy , Appl. Phys. Lett. , 2006 , 89, 121901
19) Ferromagnetism and exchange bias in a diluted magnetic ferroelectric oxide , Phys. Rev. B , 2009 , 79, 115210
20) Energetic stability, electronic structure, and magnetism in Mn-doped silicon dilute magnetic Semiconductors , Phys. Rev. B , 2008 , 77, 245211
21) Evidence of substitutional Co ion clusters in Zn1-xCoxO dilute magnetic semiconductors , Phys. Rev. B , 2008 , 77, 245208
22) Room-temperature ferromagnetism in the Co-doped Ba0.5Sr0.5TiO3 thin films , Appl. Phys. Lett. , 2008 , 92, 232507
23) Anomalou magnetic behavior of Mn-Mn dimmers in the dilute magnetic semiconductor (Ga, Mn)N , Phys. Rev. B , 2007 , 76, 245210
24) Local lattice distortion of Ge-dilute Ge-Si alloy: multiple-scattering EXAFS study , Phys. Rev. B , 2006 , 74, 092101
25) High Photocatalytic Activity of Rutile TiO Induced by Iodine Doping , J. Phys. Chem. C , 2010 , 114, 6035-6038
26) High-Temperature Ferromagnetism of Hybrid Nanostructure Ag-Zn0.92Co0.08O Dilute Magnetic Semiconductor , J. Phys. Chem. C , 2009 , 113: 3581
27) Evidence of Matrix Lattice Distortion in Zn1-xCoxO Nanocrystals , J. Phys. Chem. C , 2009 , 113: 4263
28) Magnetic Property and Spatial Occupation of Co Dopants in Zn0.98Co0.02O Nanowires , J. Phys. Chem. C , 2009 , 113: 14114
29) Interfacial and surface structures of CeO2-TiO2 mixed oxides , J. Phys. Chem. C , 2007 , 111, 19078
30) Nature and role of Ti species in the hydrogenation of a NaH/Al mixture , J. Phys. Chem. C , 2007 , 111: 3476
31) Study of the Correlation between the Stability of Mg-Based Hydride and the Ti-Containing Agent , J. Phys. Chem. C , 2007 , 111: 14021-14025
32) structural study on Co-Ni bimetallic nanoparticles by X-ray Spectroscopy , J. Phys. Chem. C , 2010 , 114,13596
33) XAFS在凝聚态物质研究中的应用 (review) , 中国科学技术大学学报 , 2007 , 37, 426-440
 
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