Two-photon absorption in quadrupolar bis(acceptor)-terminated chromophores with electron-rich bis(heterocycle)vinylene bridges

Shijun Zheng, Amalia Leclercq, Jie Fu, Luca Beverina, Lazaro A. Padilha, Egbert Zojer, Karin Schmidt, Stephen Barlow, Jingdong Luo, Sei Hum Jiang, Alex K.Y. Jen, Yuanping Yi, Zhigang Shuai, Eric W. Van Stryland, David J. Hagan, Jean-Luc Bredas, Seth R. Marder*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Two-photon absorption spectra for a range of bis(acceptor)-substituted bis(dibutoxythienyl)ethene and bis(N-hexylpyrrolyl)ethene chromophores have been recorded using Z-scan and white-light-continuum pump-probe techniques. All the chromophores studied show strong near-infrared two-photon absorption with cross sections in the range of 2400-5900 GM (1 GM = 1 × 10-50 cm 4 s/photon) at photon wavelengths between 1.0 and 1.3 μm; cross sections as high as 10000 GM can be accessed close to the one-photon absorption edge. Quantum-chemical calculations reproduce the experimentally observed variations of the two-photon properties with the chemical structure.

Original languageEnglish (US)
Pages (from-to)432-442
Number of pages11
JournalChemistry of Materials
Volume19
Issue number3
DOIs
StatePublished - Feb 6 2007

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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