Basic Information

 

Dr. Li Yuanjie

Associate Professor

School of Electronic and Information Engineering

Xi'an Jiaotong University

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Education

  • Beijing University of Aeronautics and Astronautics, Bachelor in Metallic Materials
    
  • Beijing University of Aeronautics and Astronautics, Master in Materials Science
    
  • University of Florida, USA, Ph.D. in Electronic Materials Science
    
  • Joint Postdoctoral program of Pacific Northwest National Laboratory and University of Washington at Seattle,USA

 

Research Interests

Multifunctional thin film and nanostructured materials have combined electrical, optical, piezoelectronic as well as dielectric properties. Epitaxial and polycrystalline growth of such materials are important for a very wide range of microelectronic and optoelectronic energy conversion devices application. Modulation of electical conductiveity of functional thin films from insulating to semiconducting and conductive can be realized by doping and forming multi-elements compound. Such wide range of electrical properties can be used as dielectrics, electrical active channel layer in TFT and transparent electrode materials for solar cell and displays. In addition, low temperature synthesis of functional thin films on cheap substrates is currently indispensible for developing flexible and bendable next-generation display and electronic paper displays. Multifunctional materials have unique responsive properties under different external and internal physical potentials, such as stress, optical and magnetic fields. Design and study of these optoelectronic, piezoelectronic and piezophototronic effects are very interesting for novel functional device applications.

Publications

2014

1. Kai Jiang, Yuanjie Li, Annealing effects on properties of amorphous InGaZnO thin films by radio frequency magnetron sputtering method, Semiconductor Optoelectronics, 35, 464-467 (2014)

2. Yuanjie Li, Yanghui Liu, Feng Yun, Qing Wan, Self-assembled transparent a-IGZO based TFTs for flexible sensing applications, International Symposium on Photonics and Optoelectronics 2014, Proceedings of SPIE, 9233, 92332A (2014)

 

2013

1. Yanhua Fu, Yuanjie Li, First-principles calculations of electronic structure and stability of N-doped ZnO nanowires, Journal of the Chinese Ceramic Society, 41, 1697(2013)

2. Yuanjie Li, Zilong Liu, Kai Jiang, Xiaofen Hu, H2 annealing effect on the structural and electrical properties of amorphous InGaZnO films for thin film transistors, Journal of Non-Crystalline Solids, 378, 50-54 (2013)

3. Yuanjie Li, Kai Jiang, Yanhua Fu, Zilong Liu, Electrical and optical stabilities of amorphous InGaZnO thin films for flexible sensing transistors, Society of Information Display Symposium Digest, 44, 130-134 (2013)

 

2010-2012

1. Yuanjie Li, Xiaofen Hu, Zilong Liu and Jiangbo Ren, Power and gas pressure effects of properties of amorphous In-Ga-ZnO films grown by magnetron sputtering. Journal of Materials Science: Materials in Electronics, 23, 408-412 (2012)

2. Yuanjie Li, Zilong Liu and Jiangbo Ren, Properties of phosphorus doped ZnO Films grown by pulsed laser deposition, Journal of Vacuum Science and Technology A 29, 03A109 (2011)

3.  Yuanjie Li, Bojun Ma, Surface polarity effect on properties of two dimentional electron gas in ZnMgO/ZnO heterostructure, www.paper.edu.cn, September, 2011

4.  Yuanjie Li, Zilong Liu, Study of ZnMgO/ZnO Heterostructure Band Offset by X-ray Photoelectron Spectroscopy, www.paper.edu.cn, March, 2011

5.Yuanjie Li, JinKui Li and Xiaofen Hu, Effect of sputtering power density on properties of Ga-doped ZnO thin films grown by radio frequency sputtering. Journal of Xi’an Jiaotong University, 44, 58 (2010)

 

Before XJTU (partial)

1.Z. Zhu, V. Shutthanandan, Yuanjie Li, S.A. Chambers, Quantitative Determination of Deuterium Atom Concentration in Zinc Oxide Thin Films by Time-of-Flight Secondary Ion Mass Spectrometry, In Application of Accelerators in Research and Industry, 20th International Conference. AIP Conference Proceedings 1099, 343 (2009)

2.Yuanjie Li, T.C. Kaspar , T.C. Droubay , Z. Zhu , V. Shutthanandan, P. Nachimuthu , S.A. Chambers , Electronic properties of H and D doped ZnO epitaxial films, Applied Physics Letters 92, 152105 (2008)

3.Yuanjie Li, T.C. Kaspar , T.C. Droubay , Z. Zhu , V. Shutthanandan, P. Nachimuthu , S.A. Chambers , A study of H and D doped ZnO epitaxial films grown by pulsed laser deposition, Journal of Applied Physics 104, 053711 (2008)

4.J.M. Erie, Yuanjie Li, H.S. Kim, S.J. Pearton, B. Gila, D.P. Norton, F. Ren, Properties of Zn3N2-doped ZnO films deposited by pulsed laser deposition, Applied Surface Science 254, 5941 (2008) 

Teaching

 《Materials Science of Thin Films》,graduate course, Fall semester,teaching in English

 

This course focuses on tetrahedron relationships of processing-structure-properties-performance in metals, semiconductors, ceramics and other compound thin film materials. The course covers: 

Structure, bonding and properties of bulk solids; thermodynamics and kinetics of atomic motion in materials. Physical and chemical vapor deposition of thin film materials. Ion-surface interactions and plasma/ion beam processing of thin films. Nucleation and grain structure development of single crystal, polycrystalline and amorphous films. Epitaxy of compound semiconductor thin films for optoelectronic and information storage devices. Characterization techniques of thin films and surfaces.  

 

Chapter 1-1

Chapter 1-2

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7