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Storage Lifetime of Polymer-Carbon Nanotube Inks for Use as Charge Transport Layers in Organic Light Emitting Diodes

Mills, CA, Sam, FLM, Alshammari, AS, Rozanski, LJ, Emerson, NG and Silva, SRP (2013) Storage Lifetime of Polymer-Carbon Nanotube Inks for Use as Charge Transport Layers in Organic Light Emitting Diodes IEEE/OSA Journal of display technology, 10 (2). pp. 125-131.

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Abstract

The long-term stability of multi-wall carbon nanotubes (MWCNT) mixed with the hole-transport polymer Poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) has been examined. These surfactant stabilised solutions, used as transport layers in organic light emitting diodes (OLEDs), are shown to be stable for periods of up to fifteen months, and show no signs of degrading soon after this time. In comparison, non-stabilised aqueous MWCNT solutions have been shown to aggregate within 30 minutes of production, and, although these aggregates can be re-dispersed, the solution displays an increase in smaller aggregates over time which cannot subsequently be re-dispersed by manual agitation. The stable MWCNT/PEDOT:PSS solutions have been used in ink-jet printing and as composite MWCNT/PEDOT:PSS films suitable as charge transport layers in spin coated organic light emitting diodes.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Authors :
AuthorsEmailORCID
Mills, CAUNSPECIFIEDUNSPECIFIED
Sam, FLMUNSPECIFIEDUNSPECIFIED
Alshammari, ASUNSPECIFIEDUNSPECIFIED
Rozanski, LJUNSPECIFIEDUNSPECIFIED
Emerson, NGUNSPECIFIEDUNSPECIFIED
Silva, SRPUNSPECIFIEDUNSPECIFIED
Date : 15 October 2013
Identification Number : 10.1109/JDT.2013.2286840
Uncontrolled Keywords : OLED, carbon nanotube, Polymer
Related URLs :
Additional Information : © 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 12 Feb 2014 17:03
Last Modified : 09 Jun 2014 13:37
URI: http://epubs.surrey.ac.uk/id/eprint/804253

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