Properties of single-walled carbon nanotube-based poly(phenylene vinylene) electroluminescent nanocomposites

Mansour K. Abdulbaki, Andrew Tangonan, Rigoberto C. Advincula, T. Randall Lee, Ramanan Krishnamoorti

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Devices with varying concentrations of single-walled carbon nanotubes (SWNTs) dispersed in three derivatives of poly(p-phenylene vinylene) are prepared, and their electroluminescent properties evaluated. Increasing the concentration of SWNTs improves the electrical conductivity of the nanocomposites. However, an undesired increase in the electroluminescence (EL) turn-on voltage is observed for the hybrids, possibly due to photoluminescence quenching of excitons by the SWNTs. At relatively low concentrations of SWNTs, there is an increase in the EL lifetime; in contrast, at relatively high concentrations of SWNTs, due to photoluminescence quenching by the nanotubes, significant reduction in brightness and faster degradation of the EL performance of the devices is observed.

Original languageEnglish
Pages (from-to)272-279
Number of pages8
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume50
Issue number4
DOIs
Publication statusPublished - 2012 Feb 15
Externally publishedYes

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Keywords

  • carbon nanotubes
  • conducting polymers
  • exciton quenching
  • MEH-PPV
  • optoelectronics
  • organic light-emitting diodes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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