Donor strengthening strategy for FTC-based organic nonlinear chromophore

Xianqing Piao, Xianmin Zhang, Shiyoshi Yokoyama, Hideki Miki, Isao Aoki, Akira Otomo

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


    The molecular chromphores with high first hyperpolarizability values have been reported with the development of conjugated polyene-bridge or thiophene-bridge system and strong tricyano-containing heterocyclic electron acceptors. In this work, we investigated the enhancement of the electro-optic response by introducing various groups, such as OCH3, Ophenel, OTBDMS, etc, as an additional donor part on conventional FTC type donor-π-acceptor molecules. These new type donors exhibited a strong solvatochromic effect, indicating an extra donation to the pi-conjugated bridge, which shifted the charge-transfer absorption of the chromophores to the lower energy region. Furthermore, the simple modification on the donor moiety resulted in a great improvement in the first hyperpolarizability and macroscopic electro-optic coefficient (r 33) over the benchmark dialkylamino FTC counterparts. For the real applications, the stronger acceptor was adopted to further increase the r 33 and such a chromophore was post-functionalized as side-chain polymer to enhance the temporal stability.

    Original languageEnglish
    Title of host publicationQuantum and Nonlinear Optics
    Publication statusPublished - 2010 Dec 1
    EventQuantum and Nonlinear Optics - Beijing, China
    Duration: 2010 Oct 182010 Oct 19

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    ISSN (Print)0277-786X


    OtherQuantum and Nonlinear Optics


    • Chromophore
    • Donor
    • FTC
    • Nonlinear optics
    • Poling
    • R
    • Side-chain

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering


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