Please use this identifier to cite or link to this item: https://doi.org/10.1039/c3ra42789g
Title: Tuning two-photon absorption cross-sections for triphenylamine derivatives
Authors: Fang, Z. 
Webster, R.D.
Samoc, M.
Lai, Y.-H. 
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
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