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Solution-processable transparent conducting films by defunctionalization of amine functionalized carbon nanotubes

Shkunov, Maxim, Lai, Khue T., Poll, Christopher G. and Dear, John W. (2018) Solution-processable transparent conducting films by defunctionalization of amine functionalized carbon nanotubes Journal of Photonics for Energy, 8 (03), 032221. 032221-1.

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Abstract

This paper presents a low temperature, solution-based processing method of highly transparent, sparse networks of carbon nanotubes via annealing process that dramatically improves the conductivity of thin films of octadecylamine functionalized highly soluble single-wall carbon nanotubes by up to five orders of magnitude. This increase in conductivity obtained at low temperatures allows for the creation of transparent conducting carbon nanotube (CNT) films via printed deposition of contacts for photovoltaic, light emitting, and display devices. An increase in films conductivity has been shown with process temperatures of 200°C at normal atmospheric pressure. The dependence between the sheet resistance of CNT layers and the annealing parameters is analyzed together with Raman and FTIR data, suggesting a relationship between the loss of octadecylamine functional groups along with the healing of CNT defects during the annealing process and the dramatic conductivity improvement of CNT layers.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Shkunov, MaximM.Shkunov@surrey.ac.uk
Lai, Khue T.
Poll, Christopher G.
Dear, John W.
Date : 27 June 2018
DOI : 10.1117/1.JPE.8.032221
Copyright Disclaimer : © 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Uncontrolled Keywords : Carbon nanotubes; Transparent conductors; Thin films; Solution processing; Functionalization; Octadecylamine; Sheet resistance
Depositing User : Clive Harris
Date Deposited : 04 Jul 2018 15:12
Last Modified : 05 Jul 2018 07:27
URI: http://epubs.surrey.ac.uk/id/eprint/848656

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