1381884-47-4Relevant articles and documents
Bipolar phosphorescent iridium complex based on fluorenyl-oxadiazole, and preparation method and applications thereof
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, (2019/01/20)
The invention discloses a bipolar phosphorescent iridium complex based on fluorenyl-oxadiazole, and a preparation method and applications thereof. According to the preparation method, a bipolar main body based on fluorenyl-oxadiazole is taken as a base, group A is introduced onto the fluorenyl, group R2 is introduced onto oxadiazole; the bipolar phosphorescent iridium complex based on fluorenyl-oxadiazole is composed of a B type compound and a FB type compound, and the structures are disclosed in the invention, wherein the group A is a diphenylamine group, the group R1 is an alkyl chain, and the group R2 is an electron withdrawing group. The bipolar phosphorescent iridium complex can be taken as an OLED device auxiliary doping material, and prepared devices are excellent in performance; the synthesis patch is simple; material cost is low; and it is beneficial for development of iridium complex phosphorescent materials.
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.