State Key Laboratory of Solid Lubrication

Lanzhou Institute o f Chemical Physics

Chinese Academy of Sciences

18 Middle Tianshui Road

Lanzhou 730000

Phone: (0931)-4968295

Fax: (0931)-4968295

Email: junyanzh@yahoo.com

zhangjunyan@licp.cas.cn

Junyan Zhang Group Webpage

Professor of Chemistry and Material Science and Engineering

B.S. Lanzhou University, China, 1990

M.S. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 1997

Ph.D. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 1999

Postdoctoral Fellow, University of California at Berkeley, 03.2000 – 08.2001

Postdoctoral Fellow, University of Alabama, 08.2001 – 02.2003

Postdoctoral Fellow, Rice University, 02.2003 – 07.2005

Guest Scientist, Argonne National Laboratory, 07.2007 – 10.2007

Research Interests:

Nanostructure Thin Films and Nanolubrication

The physical, chemical and tribological properties of nanostructured diamond-like carbon films (DLC), organic thin films, functional gradient electroplatings,

and nanomaterials, are investigated.

The research in our group is focused on understanding and controlling intrinsic nanostructure, surface and interfacial physics and chemistry of thin films and applying this knowledge to a range of problems in MEMS, nanotechnology, space crafts, and automobile. The microstructure of thin films dominates their macro-properties, such as mechanical, tribological behaviors; furthermore, the role of interfaces becomes increasingly important as system dimensions are scaled downward. For instance, most electronic and optoelectronic devices are undergoing rapid scaling, with lengths moving into the nanometer range and the surface to volume ratio becoming very large. Therefore, the functions of many next generation devices, particularly, MEMS/NEMS, definitely depend critically upon the ability to design the intrinsic nanostructure of thin films applied onto devices components and to control and modify the properties of their interfaces.

Projects currently under study in the group include:

* Fullerene-like structure DLC films with low friction and long durability

* The electrochemistry deposition of DLC films in liquid phase

* The correlation between intrinsic structure and wettability/tribology of organic thin films

* Surface superhydrophobicity of engineering materails

* Electroplating process of Cr³⁺ and alloy to replace Cr⁶⁺ process

Representative Publications

1. Zhixiang Zeng, Yanling Sun, Junyan Zhang*, The electrochemical reduction mechanism of trivalent chromium in the present of formic acid, Electrochemistry Communications,11(2009)331-334
2. Gang Chen, Junyan Zhang* and Shengrong Yang*, Fabrication of hydrophobic fluorinated amorphous carbon thin films by an electrochemical route， Electrochemistry Communications, 10 (2008) 7-11
3. Qi Wang, Chengbing Wang, Zhou Wang, Junyan Zhang*,  Deyan He*, The correlation between pentatomic and heptatomic carbon rings and stress of hydrogenated amorphous carbon films prepared by dc-pulse plasma chemical vapor deposition, Applied Physics Letters, 93 (2008)131920
4. Chengbing Wang, Shengrong Yang, Qi Wang, Zhou Wang, Junyan Zhang*, Super-low friction and super-elastic hydrogenated carbon films originated from a unique fullerene-like nanostructure, Nanotechnology, 19 (2008)225709
5. Xia Wang, Peng Wang, Shengrong Yang, Junyan Zhang*, Tribological behaviors of fullerene-like hydrogenated carbon (FL-C:H) film in different atmospheres sliding against Si₃N₄ ball, Wear, 265 (2008)1708–1713
6. Shiyong Song, Jinfang Zhou, Mengnan Qu, Shengrong Yang*, Junyan Zhang*, Preparation and tribological behaviors of an amide-containing stratified self-assembled monolayers on silicon surface, Langmuir; 24(1)(2008)105-109
7. Shiyong Song, Ruiqing Chu, Jinfang Zhou, Shengrong Yang*, Junyan Zhang*, Formation and tribology study of amide-containing stratified self-assembled monolayers: Influences of the underlayer structure, J. Phys. Chem. C.  112(10) (2008)3805-3810
8. Hongyan Hu, Gang Chen and Junyan Zhang*, Synthesis of C60 nanoparticle doped hard carbon film by electrodeposition, Carbon, 46 (2008)1095-1097
9. Qi Wang, Chengbing Wang, Zhou Wang, Junyan Zhang*, Deyan He*, Fullerene nanostructure-induced excellent mechanical properties in hydrogenated amorphous carbon, Applied Physics Letters, 91(2007)141902
10. Mengnan Qu, Shiyong Song, Li Chen, Junyan Zhang*, Xiaoping Cao*, Fabrication of superhydrophobic surfaces by solution-immersion process on engineering materials, Advanced Functional Materials, 17 (2007) 593-596