Highly conductive transparent multi-walled carbon nanotube films for touch screen

Author

Jung, Daewoong ; Lee, Sang-Kwon ; Lee, Kyung H. ; Burk, Dorothea ; Overzet, Lawrence J. ; Choi, Sie-Young ; Lee, Gil S.

Author_Institution

Dept. of Electr. Eng., Univ. of Texas at Dallas, Richardson, TX, USA

fYear

2012

fDate

4-6 July 2012

Firstpage

101

Lastpage

102

Abstract

This paper focuses on how to improve the characteristics of multi-walled carbon nanotube (MWCNT) sheet transparent, conductive films (TCFs), such as their sheet resistance (Rs) and optical transparency (T), for TCF electrodes. In this work, MWCNT sheets under went an acid treatment in HNO₃ to reduce the Rs of the MWCNT sheet. The Rs of the MWCNT sheets is largely dependent on the immersion time in the acid solution. We achieved a sheet resistance of 450 Ω/sq with 90% optical transmittance at a wavelength of 550 nm for an optimized MWCNT sheet. The highly conductive, transparent and flexible thin film prepared from the MWCNT sheets is expected to be applicable to flexible electronics.

Keywords

carbon nanotubes; electric resistance; electrodes; touch sensitive screens; transparency; C; acid solution; acid treatment; flexible electronics; highly conductive flexible thin film; highly conductive transparent multiwalled carbon nanotube films; highly conductive transparent thin film; immersion time; multiwalled carbon nanotube sheet transparent conductive film characteristics; optical transmittance; optical transparency; optimized multiwalled carbon nanotube sheet; sheet resistance; touch screen; transparent conductive film electrodes; wavelength 550 nm; Carbon nanotubes; Educational institutions; Indium tin oxide; Optical films; Resistance; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Active-Matrix Flatpanel Displays and Devices (AM-FPD), 2012 19th International Workshop on

Conference_Location

Kyoto

Print_ISBN

978-1-4673-0399-6

Type

conf

Filename

6294852