The nature of interchain excitations in conjugated polymers: Spatially-varying interfacial solvatochromism of annealed MEH-PPV films studied by near-field scanning optical microscopy (NSOM)

Richard D Schaller, Lynn F. Lee, Justin C. Johnson, Louis H. Haber, Richard J. Saykally, John Vieceli, Ilan Benjamin, Thuc Quyen Nguyen, Benjamin J. Schwartz

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The nature of interchain excitations in conjugated polymers was discussed. The spatially-varying solvatochromism of annealed poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene) (MEH-PPV) films were studied by near-field scanning optical microscopy (NSOM). The solvatochromic spectral shifts of the interfacial luminescence were measured as a function of solvent polarity. The results were analyzed with an interfacial dielectric continuum model to determine the dipole moment of emissive excited states.

Original languageEnglish
Pages (from-to)9496-9506
Number of pages11
JournalJournal of Physical Chemistry B
Volume106
Issue number37
DOIs
Publication statusPublished - Sep 19 2002

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Near field scanning optical microscopy
Conjugated polymers
Dipole moment
Excited states
Luminescence
near fields
microscopy
scanning
polymers
excitation
polarity
dipole moments
luminescence
continuums
shift
poly(2-methoxy-5-(2'-ethylhexyloxy)-p-phenylenevinylene)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

The nature of interchain excitations in conjugated polymers : Spatially-varying interfacial solvatochromism of annealed MEH-PPV films studied by near-field scanning optical microscopy (NSOM). / Schaller, Richard D; Lee, Lynn F.; Johnson, Justin C.; Haber, Louis H.; Saykally, Richard J.; Vieceli, John; Benjamin, Ilan; Nguyen, Thuc Quyen; Schwartz, Benjamin J.

In: Journal of Physical Chemistry B, Vol. 106, No. 37, 19.09.2002, p. 9496-9506.

Research output: Contribution to journalArticle

Schaller, Richard D ; Lee, Lynn F. ; Johnson, Justin C. ; Haber, Louis H. ; Saykally, Richard J. ; Vieceli, John ; Benjamin, Ilan ; Nguyen, Thuc Quyen ; Schwartz, Benjamin J. / The nature of interchain excitations in conjugated polymers : Spatially-varying interfacial solvatochromism of annealed MEH-PPV films studied by near-field scanning optical microscopy (NSOM). In: Journal of Physical Chemistry B. 2002 ; Vol. 106, No. 37. pp. 9496-9506.
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