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

Research output: Contribution to journalArticle

46 Citations (Scopus)

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
Pages (from-to)6688-6698
Number of pages11
JournalJournal of Chemical Physics
Volume117
Issue number14
DOIs
Publication statusPublished - Oct 8 2002

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Near field scanning optical microscopy
Conjugated polymers
Harmonic generation
Polymer films
Ground state
harmonic generations
near fields
microscopy
scanning
polymers
Electronic properties
ground state
Annealing
Electrons
casts
annealing
electronics
electrons
poly(2-methoxy-5-(2'-ethylhexyloxy)-p-phenylenevinylene)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Nanoscopic interchain aggregate domain formation in conjugated polymer films studied by third harmonic generation near-field scanning optical microscopy. / Schaller, Richard D; Snee, Preston T.; Johnson, Justin C.; Lee, Lynn F.; Wilson, Kevin R.; Haber, Louis H.; Saykally, Richard J.; Nguyen, Thuc Quyen; Schwartz, Benjamin J.

In: Journal of Chemical Physics, Vol. 117, No. 14, 08.10.2002, p. 6688-6698.

Research output: Contribution to journalArticle

Schaller, Richard D ; Snee, Preston T. ; Johnson, Justin C. ; Lee, Lynn F. ; Wilson, Kevin R. ; Haber, Louis H. ; Saykally, Richard J. ; Nguyen, Thuc Quyen ; Schwartz, Benjamin J. / Nanoscopic interchain aggregate domain formation in conjugated polymer films studied by third harmonic generation near-field scanning optical microscopy. In: Journal of Chemical Physics. 2002 ; Vol. 117, No. 14. pp. 6688-6698.
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