- Rational Design of Chrysene-Based Hybridized Local and Charge-Transfer Molecules as Efficient Non-Doped Deep-Blue Emitters for Simple-Structured Electroluminescent Devices
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Herein, we present a molecular design of chrysene-based deep-blue emissive materials (TC, TpPC, TpXC, and TmPC), in which chrysene as a core is functionalized with different triphenylamine moieties to realize a fine-tuning deep-blue fluorescence with supe
- Chawanpunyawat, Thanyarat,Chasing, Pongsakorn,Nalaoh, Phattananawee,Maitarad, Phornphimon,Sudyodsuk, Taweesak,Promarak, Vinich
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p. 4145 - 4154
(2021/11/16)
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- Aromatic amine derivative organic electroluminescent material and device thereof
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The invention discloses an aromatic amine derivative organic electroluminescent material and a device thereof. The compound is an aromatic amine substituted pyrene compound, and a longer arylene group or heteroarylene group and other structures are introduced among one arylamine and pyrene to prolong the molecular length of the luminescent material. The compound can be used as a luminescent material in an organic electroluminescent device. These novel compounds provide better device performance, such as light emission efficiency and external quantum efficiency. An electroluminescent device and a compound formulation are also disclosed.
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- Compound for organic optoelectronic device, composition for organic optoelectronic device, organic optoelectronic device, and display device
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The present invention relates to a compound for an organic optoelectronic device, a composition for an organic optoelectronic device, an organic optoelectronic device, and a display device. Specifically, the present invention discloses a compound represented by chemical formula 1 for an organic optoelectronic device, an organic optoelectronic device including the same, and a display device. In Chemical Formula 1, each substituent is the same as described in the specification.
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Paragraph 0204-0207; 0216-0219
(2021/04/26)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light emitting compound adopted to an organic electroluminescent device. The organic light emitting compound is represented by chemical formula 1 or chemical formula 2. In the case of adopting the organic light emitting compound as a phosphorescence host compound in a hole transport functional layer or a luminous layer, an organic electroluminescent device having excellent luminous characteristics such as operating voltage, brightness, long lifespan, etc.
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Paragraph 0292-0294; 0796-0798
(2016/10/10)
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- Organic light emitting host materials
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Polyphenylene compounds such as compounds represented by Formulas 1-28 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host material in an emissive layer.
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- Synthesis and photoinduced electron transfer in platinum(ii) bis(N-(4-ethynylphenyl)carbazole)bipyridine fullerene complexes
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Platinum(ii) bis(N-(4-ethynylphenyl)carbazole)bipyridine fullerene complexes, (Cbz)2-Pt(bpy)-C60 and (tBuCbz)2-Pt(bpy)-C60, were synthesized. Their photophysical properties were studied by electronic absorption and emission spectroscopy and the origin of the transitions was supported by computational studies. The electrochemical properties were also studied and the free energies for charge-separation and charge-recombination processes were evaluated. The photoinduced electron transfer reactions in the triads were investigated by femtosecond and nanosecond transient absorption spectroscopy. In dichloromethane, both triads undergo ultrafast charge separation from the 3MLCT/LLCT excited state within 300 fs to yield their respective triplet charge-separated (CS) states, namely (Cbz)2+-Pt(bpy)-C60- and (tBuCbz)2+-Pt(bpy)-C60-, and the CS states would undergo charge recombination to give the 3C60 state, which subsequently decays to the ground state in 22-28 μs. This journal is
- Lee, Sai-Ho,Chan, Chris Tsz-Leung,Wong, Keith Man-Chung,Lam, Wai Han,Kwok, Wai-Ming,Yam, Vivian Wing-Wah
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p. 17624 - 17634
(2015/02/02)
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- Linkage effects of linear D-π-A-π-D type diketopyrrolopyrrole- triphenylamine based solution-processable organic small molecule photovoltaic materials
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Four novel D-π-A-π-D-type small molecules (SMs) were synthesized and their π-linkage effects were investigated. Among them, SM2 with vinylene as the π-linkage exhibited better molecular coplanarity, reaching a relatively higher power conversion efficiency (PCE) of 3.76%. SM3 and SM4 with acetylene and acrylonitrile as π-linkages exhibited relatively higher open-circuit voltages (VOC) of 0.93 V and 0.90 V, respectively, owing to their deep-lying HOMO levels. These results gave an important guide for developing new materials in solution-processed small molecule solar cells.
- Ji, Changyan,Yin, Lunxiang,Wang, Lihui,Jia, Tao,Meng, Shixiang,Sun, Yingji,Li, Yanqin
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p. 4019 - 4026
(2014/05/20)
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