University of California, Riverside

Department of Electrical and Computer Engineering



Oxide Nanowires and Carbon Nanotubes: Synthesis, Properties and Applications


Oxide Nanowires and Carbon Nanotubes: Synthesis, Properties and Applications
 
Chongwu Zhou
Department of Electrical Engineering, University of Southern California

Date: October 16, 2006
Time: 11:00am-12:00pm
Location: Bourns A265

Nanoscale materials rank among the most exciting new developments in modern science and engineering. This talk will focus on our recent work on novel oxide nanowires and carbon nanotubes.  The first example will be controlled synthesis of In2O3 nanowires and their applications as nanoscale transistors, nonvolatile memories and chemical sensors. This will be followed by discussion of a generic nanocasting technique developed by us to tame complex transition metal oxides (e.g., YBCO, LaCaMnO3, and Fe3O4) into one-dimensional nanowires. Devices based on these nanowires have shown intriguing magnetoresistance and phase transition. In addition, I will present our recent achievement on growing massively aligned single-walled carbon nanotubes atop sapphire substrates, which has shown enormous potential for nanotube device assembly and integration.  The last part of my talk will cover the combined use of In2O3 nanowires and nanotubes as complementary biosensors for low-density lipoproteins (LDL) and prostate specific antigen (PSA).

About the speaker:

Dr. Zhou is currently an Associate Professor at the University of Southern California.  He received his Ph.D. degree in Electrical Engineering from Yale University in 1999.  He worked as a postdoc at Stanford University before he joined the University of Southern California as an assistant professor in 2000.  He has won a number of awards including the NSF CAREER Award, the NASA TGIR Award, Zumberge Interdisciplinary Research Award, and the USC Junior Faculty Research Award.  Dr. Zhou has authored over sixty journal publications, and his work has been reported by Science, Scientific American, Physics Today, MRS Bulletin, Materials Today, National Cancer Institute, and Royal Society of Chemistry. He is currently an Associate Editor for IEEE Transactions on Nanotechnology.  His research interest covers semiconductive oxide nanowires, transition metal oxide nanowires, carbon nanotubes, and chemical and bio-sensing.
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