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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 |
Appears in Collections: | Staff Publications |
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