Nanoscopic interchain aggregate domain formation in conjugated polymer films studied by third harmonic generation near-field scanning optical microscopy

Richard D. Schaller, Preston T. Snee, Justin C. Johnson, Lynn F. Lee, Kevin R. Wilson, Louis H. Haber, Richard J. Saykally*, Thuc Quyen Nguyen, Benjamin J. Schwartz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Third-harmonic generation (THG) near-field scanning optical microscopy (NSOM) was used to investigate both as-cast and thermally annealed films of poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV). Many small domains with increased ground-state π-electron delocalization were observed in the thermally annealed films. The results indicate that the ground-state electronic properties of conjugated polymer films become highly inhomogeneous upon annealing.

Original languageEnglish (US)
Pages (from-to)6688-6698
Number of pages11
JournalJournal of Chemical Physics
Volume117
Issue number14
DOIs
StatePublished - Oct 8 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Nanoscopic interchain aggregate domain formation in conjugated polymer films studied by third harmonic generation near-field scanning optical microscopy'. Together they form a unique fingerprint.

Cite this