Prof. Luheng Wang
Central South University, China
|Title: Flexible piezoresistivecompositecomposed of conductive fillers and polymer material|
The compositecomposed of the conductive fillers and the polymer material, which possesses not only the flexibility but also the piezoresistivity, can be used to develop the flexible pressure sensor. The progress in the research on the piezoresistivity of the composite is reported. The existing theoriesto explain the piezoresistivephenomena of the composite aresummarized, including the“conductive filler gap theory”, the “conducting paththeory”, the “conductive phase contenttheory”, and the “effective conductive paththeory”. Furthermore, the limitations and the advantages of the aforementionedtheories are compared and analyzed. Finally, the applications of the composite in the development of the flexible pressure sensor are presented.
Luheng Wang received the Ph.D. degree from the Department of Precision Instruments and Mechanology, Tsinghua University, Beijing, China. He is a professor and doctoral supervisor with the School of Information Science and Engineering, Central South University, Changsha, China.
He is currently the Shenghua scholar distinguished professor, and the leader of the CSU flexible sensor lab. His current research interest is to study the key mechanical/electrical properties and mechanisms for the novel flexible sensitive materials which possess multi-sensing-functions (e.g. pressure sensitive function, temperature sensitive function, magnetic sensitive function, and gas sensitive function, etc.), and to develop the multi-functional flexible sensor system based on the aforementioned sensitive materials.
Recent years, as the first author and the corresponding author, he has published many papers in the top journals in the fields of Sensor, Instrumentation, Micro Electrical Mechanical System, and Electron Device, etc. (e.g. “IEEE-ASME Trans. Mecharonics”, “IEEE Trans. Electron Dev.”, “IEEE Electron Dev. Lett.”, “IEEE Trans. Instrum. Measur.”, “J. Microelectromech. S.”, “Carbon”, “Compos. Sci. Technol.”, “Compos. Part-A”, “Sens. Actuat. B-Chem.”, “Sens. Actuat. A-Phys.”, “IEEE Sens. J.”, “Smart Mater. Struct.”, “J. Polym. Sci. Part-B: Polym. Phys.”, etc.). As the first inventor, he has been granted more than 10 invent patents. He has been invited as the reviewer for many SCI journals, such as “IEEE Transactions Series Journals”, “Compos. Part-A”, “Nanotechnol.”, “IEEE Sens. J.”, “J. Phys. D: Appl. Phys.”, “Sens. Actuat. A-Phys.”, “J. Appl. Polym. Sci.”, etc. He has also been invited as the chair and the keynote speaker to give plenary presentations in many international conferences. He has won many scientific researching and teaching awards. Many of his postgraduates have also won the national scholarships and the top-level school scholarships.
As the Principal Investigator, he has undertaken many scientific projects, such as “the National Nature Science Foundation of China”, “Specialized Research Fund for the Doctoral Program of Higher Education”, “the Shenghua Scholar Program of Central South University”, “the Fundamental Research Funds for the Central Universities”, and “the Program for Excellent Talents in University”, etc. The flexible piezoresistive sensor system he developed has solved the key difficult problem of the interlayer pressure measurement between the curved surfaces with small space in the modern industry equipment.