Additive Manufactured Sensors and Devices

Hejun Du,* Van-Thai Tran, Weidong Li and Xueyu Bai

School of Mechanical & Aerospace Engineering

Singapore Centre for 3D Printing

Nanyang Technological University, Singapore 639798

Abstract: In the development of sensors and devices, fabrication of electrodes and electronic components is highly demanded. Inkjet printing of conductive material is one potential method to meet this demand. In this presentation, we report a rapid additive manufacturing approach to fabricate dielectrophoresis (DEP) device and various other sensors on glass substrate using inkjet printing technology. Complicating-shape patterns has been printed and tested. A glass-based DEP device for manipulating micro-particle and an electrical sensing device has been prepared to illustrate such printed silver micro-pattern. The performance of those printed devices was demonstrated and tested. The results strongly have shown that inkjet printing is a powerful additive manufacturing tool for the development and fabrication of sensors and electronic devices.

Biography: Hejun DU obtained both BEng and MEng from Nanjing University of Aeronautics and Astronautics, China in 1983 and 1986, respectively. Subsequently, he lectured there until he left for Imperial College of Science, Technology and Medicine, UK for his PhD study in 1988. He joined Nanyang Technological University, Singapore in 1991 after obtaining his PhD. He is currently an associate professor in the School of Mechanical and Aerospace Engineering, NTU. He served as the Head of Engineering Mechanics Division in the school from 2008 to 2011. He has led as PI over 15 research grants from various research funding agencies, totaling more than S$12 million. He has published over 250 international refereed journal papers and a few invited book chapters. His journal papers were cited more than 8600 times in the SCI with a H-Index of 49.