Unknown

Dataset Information

0

Linear and Nonlinear Optical Properties of Photoresponsive [60]Fullerene Hybrid Triads and Tetrads with Dual NIR Two-Photon Absorption Characteristics.


ABSTRACT: Two C60-(antenna)x analogous compounds having branched hybrid triad C60(>DPAF-C18)(>CPAF-C2M) and tetrad C60(>DPAF-C18)(>CPAF-C2M)2 nanostructures were synthesized and characterized. The structural design was intended to facilitate the ultrafast fs intramolecular energy-transfer from photoexcited C60[>1(DPAF)*-C18](>CPAF-C2M)1or2 or C60(>DPAF-C18)[>1(CPAF)*-C2M]1or2 to the C60> 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 photo-responses at 980 nm showing 2PA cross-section (?2) values of 995-1100 GM for the hybrid tetrad. These ?2 values were correlated to the observed good efficiency in reducing fs 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).

SUBMITTER: Jeon S 

PROVIDER: S-EPMC3806628 | biostudies-literature | 2013 Aug

REPOSITORIES: biostudies-literature

altmetric image

Publications

Linear and Nonlinear Optical Properties of Photoresponsive [60]Fullerene Hybrid Triads and Tetrads with Dual NIR Two-Photon Absorption Characteristics.

Jeon Seaho S   Haley Joy J   Flikkema Jonathan J   Nalla Venkatram V   Wang Min M   Sfeir Matthew M   Tan Loon-Seng LS   Cooper Thomas T   Ji Wei W   Hamblin Michael R MR   Chiang Long Y LY  

The journal of physical chemistry. C, Nanomaterials and interfaces 20130801 33


Two C<sub>60</sub>-(antenna)<sub>x</sub> analogous compounds having branched hybrid triad C<sub>60</sub>(>DPAF-C<sub>18</sub>)(>CPAF-C<sub>2M</sub>) and tetrad C<sub>60</sub>(>DPAF-C<sub>18</sub>)(>CPAF-C<sub>2M</sub>)<sub>2</sub> nanostructures were synthesized and characterized. The structural design was intended to facilitate the ultrafast fs intramolecular energy-transfer from photoexcited C<sub>60</sub>[><sup>1</sup>(DPAF)*-C<sub>18</sub>](>CPAF-C<sub>2M</sub>)<sub>1or2</sub> or C<sub>60</s  ...[more]

Similar Datasets

| S-EPMC3830959 | biostudies-literature
| S-EPMC3196671 | biostudies-literature
| S-EPMC8988288 | biostudies-literature
| S-EPMC7463668 | biostudies-literature
| S-EPMC7979628 | biostudies-literature
| S-EPMC4609984 | biostudies-other
| S-EPMC8840255 | biostudies-literature
| S-EPMC6120490 | biostudies-literature
| S-EPMC6427942 | biostudies-literature
| S-EPMC8179388 | biostudies-literature