Yuegang Zhang
State "Thousand Global Talents " Specially Recruited Expert
Professor, Department of Physics, Tsinghua University
Visiting Researcher, SINANO, Chinese Academy of SciencesOFFICE ADDRESS
Department of Physics,Tsinghua University,
Room 408, Nanotechnology Building,
Beijing 100084, ChinaPhone: (+86) 10-6278-8965
Email: [email protected]
Prof. Zhang Yuegang obtained his bachelor's and master's degree in Physics at Tsinghua University in 1986 and 1989, respectively, and received his Ph.D. in materials science from University of Tokyo in 1996. He then worked for NEC Corporation, Stanford University, Intel Corporation (Senior Researcher), and Berkeley National Laboratory (Career Staff Scientist) before he was appointed as a full professor of physics at Tsinghua University and a visiting researcher at the Suzhou Institute of Nanotechnology and Nano-Bionics (SINANO), Chinese Academy of Sciences in 2017.
In his more than 30 years of research career, Prof. Zhang has achieved important results in both academia and industry. His research achievements include synthesis and characterization of nanomaterials, design and micro-nanometer processing of nano device, electrochemical energy storage, chemical and physical mechanisms of energy conversion, and in-situ characterization technologies.
As of January 2018, he has published more than 100 papers, cited over 10,000 times with an h-index of 42, and obtained over 30 authorized patents. Prof. Zhang has written 5 book chapters, and given around 20 Invited talks at international conferences.
In recent years, Zhang Group has made research progress in electrochemical energy storage area such as lithium-ion batteries, lithium-sulfur batteries, magnesium-sulfur batteries and supercapacitors.
1. Invented the nitrogen-doped graphene-sulfur nanocomposite cathode for lithium-sulfur batteries, the related paper has been cited more than 600 times.
2. Among them, the lithium-sulfur battery based on the graphene nitride/sulfur composite electrode material has a cycling life of up to 2,000 times, creating a new record for this type of battery. Its specific capacity and rate performance are also among the world's leading level at the time of publication. (Click to view: C&EN reported);
3. Realized in-situ SEM/TEM observation of the electrochemical processes in Li2S/Li Cells. Revealed the formation mechanism of the lithium dendrite via self-developed electrochemical chip. The Advanced Energy Materials and Advanced Materials magazine published the related results (Click to view: Wiley Online Report).
Major innovations in the synthesis and characterization of nanomaterials, nanodevice fabrication and testing include:1. Synthesis of nano-coaxial cable structures consisting of nanotubes and semiconductor nanowires (published in Science magazine);
2. Realization of nano-heterostructures between single-walled carbon nanotubes and semiconductors or metals (published in Science magazine), which has played an important role in improving the electrical contact characteristics of carbon nanotube devices.
3. It is found that the carbon nanotubes have electrical and mechanical reactions to light, which lays the foundation for the future research of artificial muscle of nanotubes.
4. The experimental results show that the relationship between the radius of carbon nanotubes (CNT) and the size of metal catalyst particles by chemical vapor deposition (CVD) method plays an important role in the study of the growth mechanism of CNTs.
5. The effect of electric field on the arrangement of carbon nanotubes has achieved the in-situ ordered growth of CVD nanotubes.
6. Chemical or biological molecules are used to modify the surface of carbon nanotubes by non-combination bonds. Non-combination bond modification does not affect the electrical properties of CNTs, but they can still be used to mount proteins, nanocrystals, etc. on nanotubes, which is critical to research of chemical or biological sensors development. (The related paper has been cited more than 1,900 times)
7. A nano-flash memory device with a single electron sensitivity composed of a single nanotube and a metal nanoparticle has been realized。
8. A nano-pencil core-shell nano-probe composed of carbon nanotubes and SiO2 was used to realize ultra-high-density digital memory devices on piezoelectric media.
9. The operation and separation of carbon nanotubes by optical capture method are proposed and realized.Since 2008 at Berkeley National Laboratory in the United States, Zhang has teamed up research on graphene materials.
1. Invented the technology for direct chemical vapor deposition of single-layer graphene films and nanoscale filed-effect device arrays on dielectric substrates.
2. Observed the anomalous 1/f noise behavior of single-layer graphene near the Dirac points.
3. Investigated quantum confinement effects and scaling behaviors in graphene nanoribbons. Revealed the dependence of transport property on the graphene nanoribbon width.
EMPLOYMENT May. 2017 – present Professor, Department of Physics, Tsinghua University (Beijing, China) Sept. 2012 – May. 2017 Professor, Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)
Chinese Academy of Sciences(Suzhou, China) Aug. 2008 – Sept. 2012 Staff Scientist (Career), Lawrence Berkeley National Laboratory (Berkeley, CA, USA) July. 2002 – Aug. 2008 Senior Researcher, Intel Corporation (Santa Clara, CA, USA) Chair, Memory Strategic Research Sector,
Semiconductor Technology Committee (05 – 08)Project leader, Nanotube Strategic Research Project,
Intel Research (02 – 05)Jan. 2000 – July. 2002 Research Associate, Department of Chemistry, Stanford University (Stanford, CA, USA) affiliated with Molecular Nanosystems Inc. (Sept. 2001 – July. 2002) Oct. 1996 – Jan. 2000 Researcher, Fundamental Research Laboratories, NEC Corporation (Tsukuba, Japan) Aug.1989 – Sept.1993 Lecturer/Assistant Professor, Department of Physics,
Tsinghua University(Beijing, China) EDUCATION Oct. 1993 – Sept. 1996 Ph.D. Materials Science, University of Tokyo Sept.1986 – June.1989 M.S. Physics, Tsinghua University Sept.1981 – July. 1986 B.S. Physics, Tsinghua University