Title :
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
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;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2014 IEEE 14th International Conference on
Conference_Location :
Toronto, ON
DOI :
10.1109/NANO.2014.6968021
