Group Members

 • Group Leader

 • PostDocs & Staff

    – Yolande Berta
    – Yong Ding
    – Yong Qin
    – Rusen Yang
    – Jinhui Song
    – Jun Zhou
    – Jung-il Hong
    – Yaguang Wei
    – Youfan Hu
    – Yeh Ping-Hung

 • Graduate Students

    – Wenjie Mai
    – Ben Weintraub
    – Melanie Kirkham
    – Yifan Gao
    – Sheng Xu
    – Cheng Li
    – Calvin Chen Xu
    – Peng Fei
    – Yudong Gu
    – Zhou Li
    – Xiaomei Zhang
    – Wenzhuo Wu
    – Guang Zhu
    – Ming-Yen Lu

 • Memories

 • Prior Members

Biosketch

• Currently seeking a full time position in a leading technology company or a prestigious research institute.
• Ph.D. in Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA, 2005-2008.12(Anticipated)
• Master of Science in Physics, Georgia Institute of Technology, Atlanta, GA, USA, 2003-2005.
• Intern, Institute of Physics, Chinese Academy of Sciences, Beijing, China, 2001-2003.
• Bachelor of Science in Physics, Peking University, Beijing, China, 1998-2002.

back to top

Research Area

• Participated in the fabrication and characterization project on ZnO superlattice-structured nanohelices, which is published in Science 2005, 309, 1700 & Nano Letters 2006, 6, 2536.
• Developed new physical and statistical methods to quantify elastic deflection and obtain Young’s modulus of one-dimensional nanowires by atomic force microscope (AFM).
• Designed, fabricated, and functionalized ZnO nanowire based nanodevices such as field effect transistors (FET), ultraviolet (UV) sensors, gas sensors, and solar cells.
• Established a manipulation and measurement system in a scanning electron microscope (SEM) chamber for electrical and mechanical measurement on nanomaterials.
• Investigated the size dependence of the elastic properties of ZnO nanobelts.
• Optimized growth condition of vertical-aligned ZnO nanowire arrays on SiC and GaN substrates.

back to top

Publications

1. "A Statistical Approach to Quantifying the Mechanical Property of Nanomaterials", X.W.Deng, R.S.Vengazhiyil, C.F.Wu, W.J.Mai, and Z.L.Wang, (In preparation).
2. "Vertically aligned ZnO nanowire arrays on GaN and SiC substrates",W.J. Mai,P.X. Gao, C.S. Lao, Z.L.Wang, A.K.Sood, D.L.Polla and M.B.Soprano, Chem. Phys. Lett.,460 (2008)253-256.
3. "Co-doped Y-shape ZnO nanostructures: synthesis, structure and properties", X.M. Zhang, W.J. Mai, Y.Zhang, Y.Ding and Z.L.Wang, (Submitted).
4. "Synthesis and characterization of Zn1-xMnxO nanowires",X.M. Zhang, Y. Zhang, Z.L.Wang, W.J. MaiY.D.Gu, W.S. Chu, and Z.Y.Wu, Appl. Phys. Lett.,92 (2008) 162102.
5. " "Elastic properties and buckling of silicon nanowires"",C.L.Hsin, W.J. Mai(co-first-author),, Y.D.Gu, Y.F.Gao, Y.Liu, L.J.Chen and Z.L. Wang, Adv. Mater.(Accepted)
6. ""Size dependence of the mechanical properties of ZnO nanobelts"", M. Lucas, W.J. Mai, R.S. Yang, Z.L. Wang and E. Riedo, Philos. Mag., 87 (2007) 2135-2141.
7. "Aspect Ratio Dependence of the Elastic Properties of ZnO Nanobelts", M. Lucas, W.J. Mai, R.S. Yang, Z.L. Wang and E. Riedo, Nano Lett., 7 (2007) 1314-1317.
8. "Superelasticity and Nanofracture Mechanics of ZnO Nanohelices", P.X. Gao, W.J. Mai and Z.L. Wang Nano Lett.,2006 (6) 2536-2543.
9. "Quantifying the elastic deformation behavior of bridged nanobelts", W.J. Mai and Z.L. Wang Appl. Phys. Lett., 89 (2006) 073112.
10. "Quantifying oxygen diffusion in ZnO nanobelt", J. Liu, P.X. Gao, W.J. Mai, C.S. Lao, Z.L. Wang and R. Tummala Appl. Phys. Lett., 89 (2006) 063125.
11. "Nanowire as pico-gram balance at workplace atmosphere", J. Zhou, C.S. Lao, P.G. Gao, W.J. Mai, W.L. Hughes, S.Z. Deng, N.S. Xu and Z.L. WangSolid State Commun., 139 (2006) 222-226.
12. "Conversion of Zinc Oxide Nanobelts into Superlattice-Structured Nanohelices", P.X. Gao, Y. Ding, W.J. Mai, W.L. Hughes, C.S. Lao, Z.L. Wang Science, 309 (2005) 1700-1704.
13. "Structure stability and electrical properties of the chain structure Ca₂CuO₃ under high pressure", G.M. Zhang, W. J. Mai, F.Y. Li, Z.X. Bao, R.C. Yu, T.Q. Lu, J. Liu, C. Q. Jin, Phys. Rev. B 67 (2003) 212102.
14. "Structure stability of infinite-layer CaCuO₂ by high pressure energy dispersive X-ray diffraction with synchrotron radiation", X.M. Qin, M. Hong, G.M. Zhang, W. J. Mai, F.Y. Li, R.C. Yu, J. Liu, C.Q. Jin, Chin. Sci. Bull. 48 (2003) 1201.
15. "Structure phase transition of edge-sharing copper oxide Ca_0.85CuO₂ under high pressure", W. J. Mai, G.M. Zhang, X.M. Qin, L.C. Chen, F.Y. Li, R.C. Yu, J. Liu, C.Q. Jin, Chin. Sci. Bull. 49 (2004) 872.

back to top

Research Highlights

back to top

Honors & Awards

back to top