383-28-8Relevant articles and documents
Stimuli-responsive cyclometalated platinum complex bearing bent molecular geometry for highly efficient solution-processable OLEDs
Wei, Zhenhua,Zhang, Kai,Kim, Chan Kyung,Tan, Shuai,Wang, Shaojie,Wang, Lin,Li, Jun,Wang, Yafei
, p. 493 - 496 (2021)
Smart materials, such as stimuli-responsive luminescence, have attracted much attentions due to their potential application in semiconductor filed. In this context, platinum complexes of (dfppy-DC)Pt(acac) and (dfppy-O-DC)Pt(acac) were prepared and charac
Synthesis method and application of diphenyl sulfone-based double-chromophore thermally activated delayed fluorescent materials
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Paragraph 0019-0020, (2019/11/29)
The invention discloses thermally activated delayed fluorescent materials containing double chromophores, and an application thereof in solution-processible organic electroluminescent devices. A carbazole-diphenyl sulfone blue light-emitting chromophore used as a terminal group and a triphenylamine-anthraquinone orange red light-emitting chromophore used as a central core are connected in non-conjugated and conjugated manners to construct the double-chromophore thermally activated delayed fluorescent materials. The materials are beneficial for separating the spatial distribution of the highestoccupied orbits and the lowest empty orbits of molecules to obtain a small energy gap between a single state and a triple state; and the intramolecular energy transfer of the materials changes with the connection mode, and dual emission of the single molecules is achieved. The double-chromophore thermally activated delayed fluorescent materials can be used as the luminescent layer material of a solution-processible organic electroluminescent diode to make the devices have a maximum external quantum efficiency of 3.96%.
Optimized trade-offs between triplet emission and transparency in Pt(II) acetylides through phenylsulfonyl units for achieving good optical power limiting performance
An, Miao,Yan, Xiaogang,Tian, Zhuanzhuan,Zhao, Jiang,Liu, Boao,Dang, Feifan,Yang, Xiaolong,Wu, Yong,Zhou, Guijiang,Ren, Yixia,Gao, Loujun
supporting information, p. 5626 - 5633 (2016/07/06)
Three Pt(ii) acetylides have been prepared by coupling trans-[PtCl2(PBu3)2] to ethynyl aromatic ligands with electron-withdrawing phenylsulfonyl units in high yields (>85%). The investigation of their photophysical behavior has shown that the unique conjugation-breaking configuration of the -SO2- linker in the phenylsulfonyl units can afford a very short cut-off wavelength (λcut-off) of P) of the prepared Pt(ii) acetylides can be effectively enhanced from 0.52% to 15.92% through increasing the number of fluorine substituents on the phenylsulfonyl units in the organic ligands. Benefiting from their enhanced ΦP, the phenylsulfonyl-based Pt(ii) acetylides can exhibit comparable or even better optical power limiting (OPL) performance against 532 nm lasers than the state-of-the-art OPL material C60, indicating their great potential in the field of laser protection. All of these results have provided a new strategy to achieve consistency between high OPL ability and good transparency for OPL materials, representing a valuable attempt for coping with key problems in the field of nonlinear optics.