1374359-19-9Relevant academic research and scientific papers
Synthesis and two-photon absorption properties of star-shaped chromophores derived from functionalized fluorene units
Lin, Tzu-Chau,Liu, Che-Yu,Huang, Bor-Rong,Lin, Ja-Hon,Shen, Yu-Kai,Wu, Cheng-Yu
, p. 498 - 508 (2013/02/25)
A set of small star-shaped chromophores composed of three fluorene-based congeners have been synthesized and shown experimentally to possess strong and widely dispersed two-photon absorptivities in the visible to near-IR region under the irradiation of femtosecond and nanosecond laser pulses. In addition, the number of electron-donating fluorenyl units incorporated in the final structure was closely connected to the molecular two-photon activities of these model compounds. Effective optical power attenuation and stabilization behaviors of these dye molecules in the nanosecond time domain were also investigated. The results indicate that such a structural motif could be useful in the molecular design of strong two-photon absorbing material systems for quick-responding and broadband optical suppressing-related applications, particularly for laser pulses with long durations in the near-IR region. A set of star-shaped chromophores containing functionalized fluorene units were synthesized and shown to possess ascending two-photon absorptivities with the growth of their π systems. The observed effective optical power-limiting and stabilization behaviors in the nanosecond time domain indicate that these dye molecules have potential as broadband and quick-responding optical limiters. Copyright
Two-photon absorption and effective optical power-limiting properties of small dendritic chromophores derived from functionalized fluorene/oxadiazole units
Lin, Tzu-Chau,Lee, Ying-Hsuan,Huang, Bor-Rong,Hu, Chia-Ling,Li, Yu-Kai
, p. 4935 - 4949 (2012/07/30)
A set of novel multi-branched chromophores composed of four analogues with generic skeletons of donor-π-acceptor (D-π-A) derived from functionalized fluorene/oxadiazole moieties has been synthesized and experimentally shown to possess strong and wide-dispersed two-photon absorptivities in near infrared (NIR) region under the irradiation of femtosecond laser pulses. It is demonstrated that structural parameters, such as the size of π-framework and the number of electron-donating units attached are closely connected to the molecular two-photon activities of these model compounds. Effective optical power-attenuation behaviors in the nanosecond time domain of the studied chromophores were also investigated and the results indicate that such dye molecules can be potential materials as broadband and quick-responsive optical-limiters especially against those laser lights with longer pulses.
Synthesis and two-photon properties of small dendritic chromophores with symmetrical and unsymmetrical substituted skeletons
Lin, Tzu-Chau,Lee, Ying-Hsuan,Hu, Chia-Ling,Li, Yu-Kai,Huang, Yu-Jhen
, p. 1737 - 1745 (2012/05/04)
A set of novel multi-branched chromophores consisting of two groups of fluorene/oxadiazole-based analogues with generic skeletons of donor-π-acceptor (unsymmetrical) and donor-π-acceptor-π-donor (symmetrical) type has been synthesized and shown to display strong and broadly dispersed two-photon absorptivities in the near infrared (NIR) region on irradiation with femtosecond laser pulses. It is also demonstrated that structural parameters such as the number of donor units attached and the substitution pattern are closely connected to the molecular two-photon activities of these model compounds.
