Analysis of sprayed Carbon nanotube films on rigid and flexible substrates

Author

Robbiano, Valentina ; Abdellah, Alaa ; Santarelli, Luca ; Falco, Aniello ; El-Molla, Sara ; Titova, Lyubov V. ; Purschke, David N. ; Hegmann, Frank A. ; Cacialli, Franco ; Lugli, Paolo

Author_Institution

Dept. of Phys. & Astron., Univ. Coll. London, London, UK

fYear

2014

fDate

18-21 Aug. 2014

Firstpage

650

Lastpage

654

Abstract

We report on the morphological, electrical and optical characteristics of Carbon nanotube (CNT) films on different transparent substrates, obtained using spray deposition. The effect of different substrate materials on the characteristics of spayed CNT films with varying thickness is investigated. While film morphology is shown to depend on the underlying surface characteristics, no significant changes in work function are observed. These results are compared to films deposited onto flexile substrates. Further, time-resolved THz spectroscopy reveals picosecond transient photoconductivity dynamics in sprayed CNT films on flexible PET substrates.

Keywords

carbon nanotubes; nanofabrication; photoconductivity; spraying; surface morphology; terahertz wave spectra; thin films; time resolved spectra; work function; C; CNT films; electrical characteristic; film morphology; flexible substrate; optical characteristic; picosecond transient photoconductivity dynamics; rigid substrate; spray deposition; sprayed carbon nanotube films; surface characteristic; time-resolved THz spectroscopy; transparent substrate; work function; Carbon nanotubes; Conductivity; Electrodes; Films; Indium tin oxide; Positron emission tomography; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology (IEEE-NANO), 2014 IEEE 14th International Conference on

Conference_Location

Toronto, ON

Type

conf

DOI

10.1109/NANO.2014.6968021

Filename

6968021