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Professor Feng Hua

Dr. Feng Hua joined the Department of Electrical and Computer Engineering at Clarkson University in the Fall of 2005. He received his Ph.D. in Engineering from Louisiana Tech University in 2003. His research work at that time focused on electrostatic self-assembly and its application to electronic devices. From 2003 to 2005, he worked as a postdoctoral research associate at the University of Illinois at Urbana-Champaign. He studied the ultimate resolution of soft-lithography, polymeric ink lithography on non-planar substrates and molecule separation via nanotextured membrane. So far, five US patents have been filed based on his research. He is an IEEE senior member and reviewer for peer-reviewed journals including IEEE Transactions ofElectron Devices, IEEE Transactions of Nanotechnology, Chemistry Letters and the Journal of the Electrochemical Society, etc.

Figure 6. One approach to fabricate a high performance transparent device by transfer printing. (left column). Schematic of transistors made of Si wires on plastic substrate. The Si wires are synthesized on single crystalline Si wafer and transferred onto plastic by transfer printing. (right column). Schematic of transparent MESFET made of semiconductor wires transferred from crystalline wafer onto receiving substrate.

Professor Hua’s major research interests include electrostatic self-assembly and soft-lithography and their applications to electrical engineering. The combination of new micro/nanomanufacturing techniques, such as molecular self-assembly, nanomolding and transfer printing, will be employed to the fabrication of electrical and biological devices. Also newly emerged nanostructured materials such as nanocrystals, carbon nanotubes and enzymes will be integrated in the systems in order to improve the functionality of the devices.

One of Professor Hua’s ongoing projects is the fabrication of transparent devices via two strategies. One strategy uses the self-assembled transparent nanocrystals to serve as the semiconductor and oxide layer in a metal-oxide-semiconductor (MOS) transistor. The other strategy produces transparent micro- or nano- wires from substrates by the conventional lithographic process. The wires will be transferred onto the transparent substrates via polymeric transfer printing technique, forming different functional layers in an electronic device (Figure 6). Other projects include the directed multilayer nanomaterial printing and self-assembled ionic actuator. All of Hua’s projects are being carried out in the newly established Micro/Nano Fabrication Laboratory, which is located in the CAMP building. In order to fit the current and planned experiments, the micro/nano fabrication capability has been set up based on the use of equipment such as a photoresist spin coater, Karl Suss mask aligner, a wet etching bench, the Denton high vacuum evaporator, the Branson plasma RIE etcher and quartz crystal microbalance. Also a micro-probe station housed in the lab can be used to electronically characterize the transparent sensors.

For more information about Professor Feng Hua and his research, you may call him at 315-268-2126 or send email to fhua@clarkson.edu.

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