Title：	Carbon nanotube fibers for electronics applications
Speaker：	Dr. Geza Toth (Microelectronics and Materials Physics Laboratories, EMPART Research Group of Infotech Oulu, Department of Electrical Engineering, University of Oulu, Finland)
Time：	2012-10-30　 10:00
Location：	3# 210

 

 

 

 

 

 

 

 

Abstract

Carbon nanotube based fibers are ideal building blocks for many applications due to their exceptional properties, such as high mechanical strength, low density, and excellent thermal and electrical conductivity. We present a customized technique to spin fiber from unique carbon nanotube films utilizing a motorized pulling/twisting stage. The manufactured fibers’ diameter can be adjusted from few tens of microns up to hundreds of microns. Electrical measurements show that the electrical properties, e.g. fusing current is close to the values known for copper wires with similar diameter. These results reveal that the fiber spinning process could retain most of the advantageous electrical properties of original nanotubes, and also indicate a good possibility for using these low cost, sustainable fibers in electrical wiring applications.

Biography

Dr. Tech. Geza Toth, born in 1977, Hungary, postdoctoral researcher. After he received his diploma in Physics from the University of Szeged in 2002, he joined the Microelectronics and Materials Physics Laboratories in Oulu, Finland, where he finished his postgraduate studies in 2007. His primary research field is related to materials physics and characterization (electron microscopy); computational analysis (thermomechanics and fluid dynamics by FEM). He authored 30+ papers on laser-matter interaction, and syntheses/applications of nano-structured materials (CNTs, AAO, porous-Si). He has been active in national (Finnish) and European projects as key personnel and coordinator.