Title :
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
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;
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
