External electric field effects on absorption and fluorescence of anthracene-(CH2)n-naphthalene bichromophoric molecules doped in a polymer film

Takakazu Nakabayashi; Bo Wu; Takehiro Morikawa; Toshifumi Iimori; Mordecai B. Rubin; Shammai Speiser; Nobuhiro Ohta

doi:10.1016/j.jphotochem.2005.10.025

External electric field effects on absorption and fluorescence of anthracene-(CH₂)_n-naphthalene bichromophoric molecules doped in a polymer film

Takakazu Nakabayashi, Bo Wu, Takehiro Morikawa, Toshifumi Iimori, Mordecai B. Rubin, Shammai Speiser, Nobuhiro Ohta

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Methylene-linked bichromophoric molecules of naphthalene and anthracene, i.e., 9-anthryl-(CH₂)_n-1-naphthyl exhibit a very efficient photoexcitation energy transfer (EET) from the naphthalene to anthracene moieties in a polymer film, resulting in the observation of only the anthracene-like fluorescence even for excitation of the naphthalene moiety. Electrofluorescence spectra of the linked compounds are very different from those of a mixture of naphthalene and anthracene, indicating that methylene chain plays a significant role in excitation dynamics and its electric field effect. At high concentrations, where both monomer fluorescence and excimer fluorescence of anthracene are observed, the excimer fluorescence of the linked compounds is enhanced by an electric field, whereas the monomer fluorescence is quenched by an electric filed, suggesting that the intermolecular excimer formation is remarkably enhanced by an electric field in the linked compounds.

Original language	English
Pages (from-to)	236-241
Number of pages	6
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	178
Issue number	2-3 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jphotochem.2005.10.025
Publication status	Published - 2006 Mar 20
Externally published	Yes

Keywords

Electric field effects
Electroabsorption spectrum
Electrofluorescence spectrum
Energy transfer
Excimer formation
Linked compound

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1016/j.jphotochem.2005.10.025

Cite this

Nakabayashi, T., Wu, B., Morikawa, T., Iimori, T., Rubin, M. B., Speiser, S., & Ohta, N. (2006). External electric field effects on absorption and fluorescence of anthracene-(CH₂)_n-naphthalene bichromophoric molecules doped in a polymer film. Journal of Photochemistry and Photobiology A: Chemistry, 178(2-3 SPEC. ISS.), 236-241. https://doi.org/10.1016/j.jphotochem.2005.10.025

External electric field effects on absorption and fluorescence of anthracene-(CH₂)_n-naphthalene bichromophoric molecules doped in a polymer film. / Nakabayashi, Takakazu; Wu, Bo; Morikawa, Takehiro et al.

In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 178, No. 2-3 SPEC. ISS., 20.03.2006, p. 236-241.

Research output: Contribution to journal › Article › peer-review

Nakabayashi, T, Wu, B, Morikawa, T, Iimori, T, Rubin, MB, Speiser, S & Ohta, N 2006, 'External electric field effects on absorption and fluorescence of anthracene-(CH₂)_n-naphthalene bichromophoric molecules doped in a polymer film', Journal of Photochemistry and Photobiology A: Chemistry, vol. 178, no. 2-3 SPEC. ISS., pp. 236-241. https://doi.org/10.1016/j.jphotochem.2005.10.025

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title = "External electric field effects on absorption and fluorescence of anthracene-(CH2)n-naphthalene bichromophoric molecules doped in a polymer film",

abstract = "Methylene-linked bichromophoric molecules of naphthalene and anthracene, i.e., 9-anthryl-(CH2)n-1-naphthyl exhibit a very efficient photoexcitation energy transfer (EET) from the naphthalene to anthracene moieties in a polymer film, resulting in the observation of only the anthracene-like fluorescence even for excitation of the naphthalene moiety. Electrofluorescence spectra of the linked compounds are very different from those of a mixture of naphthalene and anthracene, indicating that methylene chain plays a significant role in excitation dynamics and its electric field effect. At high concentrations, where both monomer fluorescence and excimer fluorescence of anthracene are observed, the excimer fluorescence of the linked compounds is enhanced by an electric field, whereas the monomer fluorescence is quenched by an electric filed, suggesting that the intermolecular excimer formation is remarkably enhanced by an electric field in the linked compounds.",

keywords = "Electric field effects, Electroabsorption spectrum, Electrofluorescence spectrum, Energy transfer, Excimer formation, Linked compound",

author = "Takakazu Nakabayashi and Bo Wu and Takehiro Morikawa and Toshifumi Iimori and Rubin, {Mordecai B.} and Shammai Speiser and Nobuhiro Ohta",

note = "Funding Information: This work has been supported by Grants-in-Aid for Scientific Research (Grant Nos. 15205001 and 15685005) and for Scientific Research on Priority Area “Molecular Nano Dynamics” from the Ministry of Education, Culture, Sports, Science, and Technology in Japan. S.S. acknowledges the support of the Fund for Promotion of Research at the Technion.",

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N2 - Methylene-linked bichromophoric molecules of naphthalene and anthracene, i.e., 9-anthryl-(CH2)n-1-naphthyl exhibit a very efficient photoexcitation energy transfer (EET) from the naphthalene to anthracene moieties in a polymer film, resulting in the observation of only the anthracene-like fluorescence even for excitation of the naphthalene moiety. Electrofluorescence spectra of the linked compounds are very different from those of a mixture of naphthalene and anthracene, indicating that methylene chain plays a significant role in excitation dynamics and its electric field effect. At high concentrations, where both monomer fluorescence and excimer fluorescence of anthracene are observed, the excimer fluorescence of the linked compounds is enhanced by an electric field, whereas the monomer fluorescence is quenched by an electric filed, suggesting that the intermolecular excimer formation is remarkably enhanced by an electric field in the linked compounds.

AB - Methylene-linked bichromophoric molecules of naphthalene and anthracene, i.e., 9-anthryl-(CH2)n-1-naphthyl exhibit a very efficient photoexcitation energy transfer (EET) from the naphthalene to anthracene moieties in a polymer film, resulting in the observation of only the anthracene-like fluorescence even for excitation of the naphthalene moiety. Electrofluorescence spectra of the linked compounds are very different from those of a mixture of naphthalene and anthracene, indicating that methylene chain plays a significant role in excitation dynamics and its electric field effect. At high concentrations, where both monomer fluorescence and excimer fluorescence of anthracene are observed, the excimer fluorescence of the linked compounds is enhanced by an electric field, whereas the monomer fluorescence is quenched by an electric filed, suggesting that the intermolecular excimer formation is remarkably enhanced by an electric field in the linked compounds.

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