Please use this identifier to cite or link to this item: https://doi.org/10.1021/jp405424q
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dc.titleLinear and nonlinear optical properties of photoresponsive [60]fullerene hybrid triads and tetrads with dual NIR two-photon absorption characteristics
dc.contributor.authorJeon, S.
dc.contributor.authorHaley, J.
dc.contributor.authorFlikkema, J.
dc.contributor.authorNalla, V.
dc.contributor.authorWang, M.
dc.contributor.authorSfeir, M.
dc.contributor.authorTan, L.-S.
dc.contributor.authorCooper, T.
dc.contributor.authorJi, W.
dc.contributor.authorHamblin, M.R.
dc.contributor.authorChiang, L.Y.
dc.date.accessioned2014-10-16T09:30:53Z
dc.date.available2014-10-16T09:30:53Z
dc.date.issued2013-08-22
dc.identifier.citationJeon, S., Haley, J., Flikkema, J., Nalla, V., Wang, M., Sfeir, M., Tan, L.-S., Cooper, T., Ji, W., Hamblin, M.R., Chiang, L.Y. (2013-08-22). Linear and nonlinear optical properties of photoresponsive [60]fullerene hybrid triads and tetrads with dual NIR two-photon absorption characteristics. Journal of Physical Chemistry C 117 (33) : 17186-17195. ScholarBank@NUS Repository. https://doi.org/10.1021/jp405424q
dc.identifier.issn19327447
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/97067
dc.description.abstractTwo C60-(antenna)x analogous compounds having branched hybrid triad C60(>DPAF-C18)(>CPAF-C 2M) and tetrad C60(>DPAF-C18)(>CPAF- C2M)2 nanostructures were synthesized and characterized. The structural design was intended to facilitate the ultrafast femtosecond intramolecular energy transfer from photoexcited C60[> 1(DPAF)*-C18](>CPAF-C2M) 1or2 or C60(>DPAF-C18) [>1(CPAF)*-C2M]1or2 to the C 60> cage moiety upon two-photon pumping at either 780 or 980 nm, respectively. The latter nanostructure showed approximately equal extinction coefficients of optical absorption over 400-550 nm that corresponds to near-IR two-photon-based excitation wavelengths at 780-1100 nm for broadband nonlinear optical (NLO) applications. Aside from their enhanced two-photon absorption (2PA) activity at 780 nm, we also demonstrated ultrafast photoresponses at 980 nm showing 2PA cross-section (σ2) values of 995-1100 GM for the hybrid tetrad. These σ2 values were correlated to the observed good efficiency in reducing femtosecond light-transmittance down to 35% at the light intensity of 110 GW/cm2. Accordingly, 2PA characteristics of these nanostructures at multiple NIR wavelengths provided support for their suitability in uses as broadband NLO nanomaterials at 600-1100 nm that includes the 2PA ability of two antenna, DPAF (700-850 nm) and CPAF (850-1100 nm), and the fullerene cage at shorter wavelengths (600-700 nm). © 2013 American Chemical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/jp405424q
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1021/jp405424q
dc.description.sourcetitleJournal of Physical Chemistry C
dc.description.volume117
dc.description.issue33
dc.description.page17186-17195
dc.identifier.isiut000323593100050
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