Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.

Issue 3, 2010
Previous Article Next Article

Recyclable and electrically conducting carbon nanotube composite films

Author affiliations


Carbon nanotube (CNT) composite films possess unique electrical, mechanical and thermal properties. In particular, some research has shown that CNT–polymer composite films greatly enhance the performance of organic light-emitting diodes. Therefore, CNT composite films have been intensively fabricated and applied. However, recent research has shown that CNTs carry carcinogenic risks in vivo. Therefore, how to collect and treat damaged or trashed CNT composite films are considerable tasks for scientists working in this area. From the viewpoint of environmental protection and saving resources, recycling the CNT composite films is the most efficient way to solve these problems. Here, we employ a benign water-soluble polymer, polyethyleneimine (PEI), to disperse CNTs and a general spin-coating process to prepare the homogeneous CNT composite films. The prepared CNT composite films exhibit good water-soluble properties and recyclability, i.e. they can be formed and dissolved in water. In addition, the long CNTs and high loading in the PEI matrix facilitates good electric conductivity in these CNT composite films. A significant improvement in the conductivity of the composite films is observed as the concentration of CNTs in the PEI increases, reaching as high as 43.73 S cm−1 when the CNT concentration is equal to 3%.

Graphical abstract: Recyclable and electrically conducting carbon nanotube composite films

Back to tab navigation

Article information

11 Sep 2009
12 Nov 2009
First published
08 Dec 2009

Nanoscale, 2010,2, 418-422
Article type

Recyclable and electrically conducting carbon nanotube composite films

G. Zou, M. Jain, H. Yang, Y. Zhang, D. Williams and Q. Jia, Nanoscale, 2010, 2, 418
DOI: 10.1039/B9NR00257J

Social activity

Search articles by author