Electronic Materials Letters , vol. 4, no. 2, pp.57-61, June, 2008

DOI :

Electrical Properties of Transparent Conductive CNT Composite Films

Mun Ja Kim and Ji-Beom Yoo^*
Sungkyunkwan University

Abstract : CNTs have good individual conductivity but a bundle of CNTs has different electrical properties than their individual counterparts. Therefore, transparent conducting electrode and flexible display electrode materials containing carbon nanotubes (CNTs) are quite a challenge to realize their application. Good techniques for dispersing CNTs are required before the various proposed applications can be realized. Using polyvinyl alcohol (PVA) to change the surface properties of a substrate improved the dispersion of CNTs on substrates while providing suitable adhesion of the CNTs to the substrates. We analyzed the changes in physical configuration and electrical properties of CNTs dispersed on a PVA-coated polyethylene terephthalate (PET) surface after soft thermal aging of the PVA. The electrical properties were characterized by measuring the sheet resistance of films.

Keyword : transparent conductive film (TCF), polyvinyl alcohol (PVA), carbon nanotube (CNT) composite