Transparent conductive film fabrication by carbon nanotube ink spray coating and ink-jet printing

Author

Wei Zhou ; Belay, A.B. ; Davis, Kyle ; Sorloaica-Hickman, N.

Author_Institution

Florida Solar Energy Center, Univ. of Central Florida, Orlando, FL, USA

fYear

2012

fDate

3-8 June 2012

Abstract

The present work reports on the development of a class of thin-film transparent electrodes for the PV devices based on spray coating of carboxyl functional multi-walled carbon nanotubes (MWCNT-COOH) aqueous dispersion and thin-film transparent transistors based on ink-jet printing MWCNT-COOH inks with proper fluidic characteristics. The MWCNT-COOH inks were formulated by addition of PEDOT-PSS to MWCNT-COOH aqueous dispersion. SEM shows the spray coating MWCNT-COOH films and the ink-jet printing MWCNT-COOH films are uniform. UV-vis transmission spectra indicate high transparency. Four probe measurements show excellent sheet resistance. The present work demonstrates that spray coating MWCNT-COOH films are promising for transparent electrodes in flexible and large area PV electronics and that ink-jet printed MWCNT-COOH films in patterns are promising for transparent transistors.

Keywords

carbon nanotube field effect transistors; carbon nanotubes; electric resistance; electrical conductivity; electrochemical electrodes; ink jet printing; organic compounds; scanning electron microscopy; solar cells; spray coatings; thin film transistors; thin films; transparency; ultraviolet spectra; visible spectra; C; MWCNT-COOH films; PV devices; PV electronics; aqueous dispersion; carbon nanotube ink spray coating; carboxyl functional multiwalled carbon nanotubes; ink-jet printing; probe measurements; sheet resistance; thin-film transparent electrodes; thin-film transparent transistors; transmission spectra; transparent conductive film fabrication; Glass; Indexes; Optical films; Optical filters; Optical imaging; Optical sensors; Carbon nanotubes; Flexible printed; Ink; Thin film circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE

Conference_Location

Austin, TX

ISSN

0160-8371

Print_ISBN

978-1-4673-0064-3

Type

conf

DOI

10.1109/PVSC.2012.6318063

Filename

6318063