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Issue 39, 2013
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Tuning two-photon absorption cross-sections for triphenylamine derivatives

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Abstract

A methylene bridge link connecting the ortho-positions within the triphenylamine scaffold increases the molecular planarity significantly. The one-photon spectroscopies of bridged triphenylamine molecules show considerable extended conjugation relative to their triphenylamine counterparts, leading to enhanced two-photon absorption (TPA) cross-sections. Various substituents at the scaffold have been prepared and studied. Using a femtosecond laser source Z-scan method, the TPA cross-sections were characterized. The maximum magnitude of the TPA cross-section is ∼4800 GM, which is four times that of its triphenylamine counterpart.

Graphical abstract: Tuning two-photon absorption cross-sections for triphenylamine derivatives

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Publication details

The article was received on 05 Jun 2013, accepted on 29 Jul 2013 and first published on 30 Jul 2013


Article type: Paper
DOI: 10.1039/C3RA42789G
Citation: RSC Adv., 2013,3, 17914-17917
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    Tuning two-photon absorption cross-sections for triphenylamine derivatives

    Z. Fang, R. D. Webster, M. Samoc and Y. Lai, RSC Adv., 2013, 3, 17914
    DOI: 10.1039/C3RA42789G

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