Nonlinear optical and two-photon absorption properties of 1,3,5-tricyano-2,4,6-tris(styryl)benzene-containing octupolar oligomers

Bong-Rae Cho, Ming Jun Piao, Kyung Hwa Son, Sang Hae Lee, Soo Jung Yoon, Seung-Joon Jeon, Minhaeng Cho

Research output: Contribution to journalArticle

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Abstract

Octupolar oligomers containing 2-12 molecules of 1,3,5-tricyano- 2,4,6-tris(styryl)benzene derivatives have been synthesized and their nonlinear optical and two-photon absorption (TPA) properties were determined. The β(0) values are in the range of (85- 1219) × 10 -30 esu and increase monotonically with the increasing number of the octupolar units within the molecule. The two-photon-induced fluorescence excitation spectra are quite similar to the single-photon absorption spectra except that the wavelength is doubled, indicating that the one- and two-photon allowed excited states are the same. The peak TPA cross-section values (δ max) measured with nanosecond pulses by the two-photon-induced fluorescence method are in the range (3010-62930) × 10 -50 cm 4s photon -1. The δ max increases as the number of the octupolar units in the molecules increases. A linear relationship is observed between δ max and β, and this δ-β relationship serves as a useful design strategy for the synthesis of novel octupolar oligomers and polymers with large TPA and β.

Original languageEnglish
Pages (from-to)3907-3916
Number of pages10
JournalChemistry - A European Journal
Volume8
Issue number17
DOIs
Publication statusPublished - 2002 Sep 2

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Benzene
Photons
Oligomers
Molecules
Fluorescence
Benzene Derivatives
Excited states
Absorption spectra
Polymers
Wavelength

Keywords

  • Fluorescence
  • Nonlinear optics
  • Octupole
  • Polymers
  • Two-photon absorption

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Nonlinear optical and two-photon absorption properties of 1,3,5-tricyano-2,4,6-tris(styryl)benzene-containing octupolar oligomers. / Cho, Bong-Rae; Piao, Ming Jun; Son, Kyung Hwa; Lee, Sang Hae; Yoon, Soo Jung; Jeon, Seung-Joon; Cho, Minhaeng.

In: Chemistry - A European Journal, Vol. 8, No. 17, 02.09.2002, p. 3907-3916.

Research output: Contribution to journalArticle

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AU - Son, Kyung Hwa

AU - Lee, Sang Hae

AU - Yoon, Soo Jung

AU - Jeon, Seung-Joon

AU - Cho, Minhaeng

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AB - Octupolar oligomers containing 2-12 molecules of 1,3,5-tricyano- 2,4,6-tris(styryl)benzene derivatives have been synthesized and their nonlinear optical and two-photon absorption (TPA) properties were determined. The β(0) values are in the range of (85- 1219) × 10 -30 esu and increase monotonically with the increasing number of the octupolar units within the molecule. The two-photon-induced fluorescence excitation spectra are quite similar to the single-photon absorption spectra except that the wavelength is doubled, indicating that the one- and two-photon allowed excited states are the same. The peak TPA cross-section values (δ max) measured with nanosecond pulses by the two-photon-induced fluorescence method are in the range (3010-62930) × 10 -50 cm 4s photon -1. The δ max increases as the number of the octupolar units in the molecules increases. A linear relationship is observed between δ max and β, and this δ-β relationship serves as a useful design strategy for the synthesis of novel octupolar oligomers and polymers with large TPA and β.

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