English

Xie Yunchuan, PhD in Polymer Science, is a Professor at the School of Chemistry. His research focuses on high-energy storage dielectrics under elevated temperature, highly sensitive polymer piezoelectric materials, and high-performance electronic packaging materials. He also serves as the Secretary of the Dielectric Polymer Composites Committee of the Chinese Composite Society.

Dr. Xie has received four prestigious awards, including the Shaanxi Provincial Science and Technology Progress Award and the Shaanxi Provincial National Defense Science and Technology Progress Award. From 2008 to 2010, he was a visiting researcher at the Hong Kong Polytechnic University. He has led over three National Natural Science Foundation of China projects, one Special Fund for Doctoral Programs from the Ministry of Education, two Basic Research Programs of Natural Science of Shaanxi Province, and more than ten collaborations with enterprises. To date, he has published over 50 SCI-indexed papers and holds eight Chinese patents.

Talents with relevant academic background and good communication skills are welcome to the following positions:

(1) PhD degree candidates. 

Yunchuan Xie (Prof. & Dr.)

School of Chemistry

Xi'an Jiaotong University

Xi'an, China

E-mail: ycxie@xjtu.edu.cn

Homepage: http://ycxie.gr.xjtu.edu.cn

 I Research interests

(1) High-energy density dielectrics at high-temperatures: As the core material of high voltage DC capacitor, energy storage dielectrics plays a key role in storing and releasing electric energy. Through the molecular design and structural regulation of dielectric materials, it is the key to reveal the polarization, loss and charge transport mechanism in materials, clarify the structure-properties relationship, improve the breakdown resistance and high temperature resistance of dielectrics, and prepare high-performance, low-cost and long-life dielectric materials. The research involves majors of chemical engineering, chemistry, materials, electrical and other fields, which is an interdisciplinary research direction.

(2) High sensitive piezoelectric polymer materials and devices: Through investigate the structure-activity relationship and mechanism of ferroelectric materials in the process of mechanical-electrical energy conversion, reveal the material polarization, response mechanism and energy conversion principle, and prepare flexible devices that can be used in intelligent sensing, pressure assessment, energy collection and other fields. The group has mastered a complete set of processes for the synthesis and processing of P(VDF-TrFE) piezoelectric materials, high-voltage large-area continuous polarization process, low-temperature metallization, package detection and other device processing and application with independent intellectual property rights, which is expected to be used in underwater sonar, ultrasonic energy conversion, pressure sensing and other fields. 

(3) High performance electronic packaging materials: polymer composites with advanced electrical functions are widely used in 5G, chip manufacturing and other fields. The team has carried out research on the process, principle and application of high-performance composites with ultra-low loss, thermal conductivity and insulation, and low thermal expansion characteristics, and explored the evolution law of structure and performance of composites under harsh service conditions and the energy-material interaction mechanism, which provides a basis for their application in electronic encapsulation, adhesives, coatings.

II Publication

1. Xinyi Li, Yunchuan Xie, Jie Xiong, Dajiang Long, Jin Zhang, Bofeng Zhu, Xiao Zhang, Xinhua Duan, Zhenxue Liu, Zhicheng Zhang, Xingyi Huang, Structural tailoring enables ultrahigh energy density and charge-discharge efficiency of PAEK copolymer dielectrics at high temperatures, Chemical Engineering Journal, 2023, 466, 143324.
2. Yunchuan Xie; Xing Fan; Xinyi Li; Ying Zhang; Zhicheng Zhang; Xingyi Huang. Perspective on interface engineering for capacitive energy storage polymer nanodielectrics. Phys. Chem. Chem. Phys., 2022, 24, 19624-19633.
3. Wang, J.; Xie, Y. C.; Zhang, Y. F.; Peng, B. Y.; Li, Q. Z.; Ma, D. L.; Zhang, Z. C.; Huang, X. Y. The ultrahigh discharge efficiency and energy density of P(VDF-HFP) via electrospinning-hot press with St-MMA copolymer dagger. Mater Chem Front, 2021, 5, 5634-5654.
4. Yunchuan Xie, Jian Wang, Shaobo Tan, Biyun Peng, Baobao Qiao, Zhicheng Zhang, Xingyi Huang, Heliang Sui. Improving Energy Density and Efficiency of Polymer Dielectrics by Adding Trace Biaomimetic Lysozyme-modifided Boron Nitride. ACS Applied Energy Materials. 2020, 3, 7952-7963.
5. Yunchuan Xie, Wanrong Jiang, Tao Fu, Jingjing Liu, Zhicheng Zhang, Shengnan Wang, Achieving High Energy Density and Low Loss in PVDF/BST Nanodielectrics with Enhanced Structural Homogeneity, ACS Applied Materials & Interfaces, 2018, 10, 29038-29047.
6. Yunchuan Xie, Jian Wang, Yangyang Yu, Wanrong Jiang, Zhicheng Zhang, Enhancing Breakdown Strength and Energy Storage Performance of PVDF based Nanocomposites by Adding Exfoliated Boron Nitride, Applied Surface Science, 2018, 440, 1150-1158.
7. Xie Yunchuan, Yu Yangyang, Feng Yefeng, Jiang Wanrong, Zhang Zhicheng, Fabrication of Stretchable Nanocomposites with High Energy Density and Low Loss from Cross-Linked PVDF Filled with Poly(dopamine) Encapsulated BaTiO3, ACS Applied Materials & Interfaces, 2017, 9, 2995-3005.