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|Title:||Tuning two-photon absorption cross-sections for triphenylamine derivatives||Authors:||Fang, Z.
|Issue Date:||21-Oct-2013||Citation:||Fang, Z., Webster, R.D., Samoc, M., Lai, Y.-H. (2013-10-21). Tuning two-photon absorption cross-sections for triphenylamine derivatives. RSC Advances 3 (39) : 17914-17917. ScholarBank@NUS Repository. https://doi.org/10.1039/c3ra42789g||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. This journal is © The Royal Society of Chemistry.||Source Title:||RSC Advances||URI:||http://scholarbank.nus.edu.sg/handle/10635/64759||ISSN:||20462069||DOI:||10.1039/c3ra42789g|
|Appears in Collections:||Staff Publications|
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