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

D. McBranch; V. Klimov; B. Kraabel

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

D. McBranch, V. Klimov, B. Kraabel

Los Alamos National Laboratory

Research output: Contribution to conference › Paper › peer-review

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 language	English
Pages	62-63
Number of pages	2
Publication status	Published - 1998
Event	Proceedings of the 1998 International Quantum Electronics Conference - San Francisco, CA, USA Duration: May 3 1998 → May 8 1998

Other

Other	Proceedings of the 1998 International Quantum Electronics Conference
City	San Francisco, CA, USA
Period	5/3/98 → 5/8/98

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers",

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.",

author = "D. McBranch and V. Klimov and B. Kraabel",

year = "1998",

language = "English",

pages = "62--63",

note = "Proceedings of the 1998 International Quantum Electronics Conference ; Conference date: 03-05-1998 Through 08-05-1998",

}

TY - CONF

T1 - Exciton and biexciton signatures in the femtosecond transient absorption of phenylene-based polymers and oligomers

AU - McBranch, D.

AU - Klimov, V.

AU - Kraabel, B.

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

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M3 - Paper

AN - SCOPUS:0031677044

SP - 62

EP - 63

T2 - Proceedings of the 1998 International Quantum Electronics Conference

Y2 - 3 May 1998 through 8 May 1998

ER -