Aggregation quenching in thin films of MEH-PPV studied by near-field scanning optical microscopy and spectroscopy

Thomas R Huser, M. Yan

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

Aggregates in thin films of conjugated polymers form excimer states and significantly reduce the photo- and electroluminescence efficiency in devices produced from these materials. We have studied the aggregate formation in thin films of poly(2-methoxy,5-(2′-ethyl-hexyloxy)-p-phenylene-vinylene) (MEH-PPV) by near-field scanning optical microscopy and spectroscopy. Local photoluminescence spectroscopy and photo-bleaching experiments have been used to show that thin films of MEH-PPV are homogeneously aggregated and do not form aggregated domains.

Original languageEnglish (US)
Pages (from-to)333-337
Number of pages5
JournalSynthetic Metals
Volume116
Issue number1-3
DOIs
StatePublished - Jan 1 2001
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

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