Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers

D. McBranch, Victor I Klimov, B. Kraabel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The photophysics of conducting polymers from the poly(para-phenylene vinylene) (PPV) family are studied using femtosecond transient absorption to address several issues namely: the primary photoexcitation; interaction under high excitations; and biexciton signatures. The solutions and films of the PPV oligomers MEH-DSB and several soluble PPV derivatives are measured with similar results. The femtosecond differential transmission (DT) spectra in MEH-DSB show a positive band due to stimulated emission around 2.4 eV and a photoinduced absorption band from 1.3 to 2.0 eV.

Original languageEnglish
Title of host publicationTechnical Digest - European Quantum Electronics Conference
Editors Anon
PublisherIEEE
Pages62-63
Number of pages2
Publication statusPublished - 1998
EventProceedings of the 1998 International Quantum Electronics Conference - San Francisco, CA, USA
Duration: May 3 1998May 8 1998

Other

OtherProceedings of the 1998 International Quantum Electronics Conference
CitySan Francisco, CA, USA
Period5/3/985/8/98

Fingerprint

conducting polymers
stimulated emission
photoexcitation
oligomers
excitons
signatures
absorption spectra
polymers
excitation
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

McBranch, D., Klimov, V. I., & Kraabel, B. (1998). Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers. In Anon (Ed.), Technical Digest - European Quantum Electronics Conference (pp. 62-63). IEEE.

Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers. / McBranch, D.; Klimov, Victor I; Kraabel, B.

Technical Digest - European Quantum Electronics Conference. ed. / Anon. IEEE, 1998. p. 62-63.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

McBranch, D, Klimov, VI & Kraabel, B 1998, Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers. in Anon (ed.), Technical Digest - European Quantum Electronics Conference. IEEE, pp. 62-63, Proceedings of the 1998 International Quantum Electronics Conference, San Francisco, CA, USA, 5/3/98.
McBranch D, Klimov VI, Kraabel B. Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers. In Anon, editor, Technical Digest - European Quantum Electronics Conference. IEEE. 1998. p. 62-63
McBranch, D. ; Klimov, Victor I ; Kraabel, B. / Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers. Technical Digest - European Quantum Electronics Conference. editor / Anon. IEEE, 1998. pp. 62-63
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