1353558-06-1Relevant articles and documents
Four new bipolar Indolo[3,2-b]carbazole derivatives for blue OLEDs
Li, Yanmei,Ma, Hailin,Qian, Long,Su, Wenming,Wang, Ruidong,Yang, Hongyan,Yu, Shupei,Yu, Tianzhi,Zhao, Yuling
, (2021)
Four new indolo [3,2-b]carbazole derivatives containing imidazole-derived moieties, 2,8-bis(4-(9-(4-(tert-butyl)phenyl)-9H-pyreno [4,5-d]imidazol-10-yl)phenyl)-5,11-bis(2-ethylhexyl)-5,11-dihydroindolo [3,2-b]carbazole (Py-ICZ-Py), 2,8-bis(4-(1-(4-(tert-b
Achieving efficient violet-blue electroluminescence with CIE:Y 6% from naphthyl-linked phenanthroimidazole-carbazole hybrid fluorophores
Chen, Wen-Cheng,Yuan, Yi,Ni, Shao-Fei,Tong, Qing-Xiao,Wong, Fu-Lung,Lee, Chun-Sing
, p. 3599 - 3608 (2017)
In this work, we revealed a new approach for the development of efficient violet-blue emitting materials featuring a hybrid local and charge transfer (HLCT) excited state through the incorporation of naphthyl group(s) as a weak n-type π spacer in a donor-
A high performance deep-blue emitter with an anti-parallel dipole design
Zhu, Ze-Lin,Ni, Shao-Fei,Chen, Wen-Cheng,Yuan, Yi,Tong, Qing-Xiao,Wong, Fu-Lung,Lu, Feng,Lee, Chun-Sing
, p. 219 - 225 (2017)
To increase the fluorescence quantum yield of hybrid local and charge-transfer (HLCT) material, we introduce a symmetric linear D-π-A-π-D structure into molecular design and synthesized a new blue emitter, 2,2'-(2′,3′,5′,6'-tetrafluoro-[1,1':4′,1″-terphen
Phenanthroimidazole derivatives as emitters for non-doped deep-blue organic light emitting devices
Zhang, Ying,Wang, Jun-Hao,Han, Gaoyi,Lu, Feng,Tong, Qing-Xiao
, p. 70800 - 70809 (2016)
A series of phenanthroimidazole derivatives with N-1 and C-2 position modification have been synthesized, characterized and applied as non-doped emitters in organic light-emitting devices (OLEDs). The compounds show high fluorescence quantum yields high u
A Novel Spiro[acridine-9,9′-fluorene] Derivatives Containing Phenanthroimidazole Moiety for Deep-Blue OLED Application
Sun, Wei,Zhou, Nonglin,Xiao, Yin,Wang, Shirong,Li, Xianggao
, p. 3069 - 3076 (2017)
Typical π–π stacking and aggregation-caused quenching could be suppressed in the film-state by the spiro conformation molecular design in the field of organic light-emitting diodes (OLEDs). Herein, a novel deep-blue fluorescent material with spiro conformation, 1-(4-(tert-butyl)phenyl)-2-(4-(10-phenyl-10H-spiro[acridine-9,9′-fluoren]-2-yl)phenyl)-1H-phenanthro[9,10-d]imidazole (SAF-BPI), was designed and synthesized. The compound consists of spiro-acridine-fluorene (SAF) as donor part and phenanthroimidazole (BPI) as acceptor part. Owing to the rigid SAF skeleton, this compound exhibits a high thermal stability with a glass transition temperature (Tg) of 198 °C. The compound exhibits bipolar transporting characteristics demonstrated by the single-carrier devices. The non-doped OLEDs based on the SAF-BPI as the emitting layer shows maximum emission at 448 nm, maximum luminance of 2122 cd m?2, maximum current efficiency (CE) of 3.97 cd A?1, and a maximum power efficiency of 2.08 lm W?1. The chromaticity coordinate is stable at (0.15, 0.10) at the voltage of 7–11 V. The device shows a slow efficiency roll-off with CE of 3.35 and 2.85 cd A?1 at 100 and 1000 cd m?2, respectively.
Phenanthroimidazole electroluminescent material with circular polarization luminescence as well as preparation method and application thereof
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Paragraph 0063-0065, (2021/07/17)
The invention discloses a phenanthroimidazole electroluminescent material with circular polarization luminescence as well as a preparation method and application thereof. The structure of the phenanthroimidazole electroluminescent material with circular p
Optical material containing phenanthroimidazole structure Preparation method and application
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Paragraph 0054; 0058-0059, (2021/09/11)
The invention provides an optical material containing a phenanthroimidazole structure and a preparation method and application of the optical material containing the phenanthroimidazole structure. Have large steric hindrance twisted structure simultaneous
Efficient and stable deep-blue narrow-spectrum electroluminescence based on hybridized local and charge-transfer (HLCT) state
Gao, Ying,Li, Weijun,Liu, Haichao,Xiao, Shengbing,Yang, Bing,Yang, Xinqi,Zhang, Shi-Tong
, (2021/06/07)
Two phenanthroimidazole-acridine derivatives (DPM and TDPM) were designed and synthesized for deep-blue organic light-emitting diode (OLED). Twisted combined rigid structures with hybridized local and charge-transfer (HLCT) state properties enable them to
Star-shaped electroluminescent material based on phenanthroimidazole unit as well as preparation method and application of star-shaped electroluminescent material
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Paragraph 0051-0054, (2020/06/05)
The invention discloses a star-shaped electroluminescent material based on a phenanthroimidazole unit as well as a preparation method and application of the star-shaped electroluminescent material. The structure of the star-shaped electroluminescent material based on the phenanthroimidazole unit is one of the following structures described in the specification. The star-shaped electroluminescent material has local hybrid charge transfer state performance, triplet excitons can be effectively utilized through anti-gap jump to improve the utilization rate of the excitons, and the electroluminescent performance of a device is improved; the star-shaped electroluminescent material disclosed by the invention is high in conjugation degree and high in rigidity, the thermal stability of the materialcan be improved, the radiation transition rate of the material can be increased, and the luminous efficiency of the material can be improved; the star-shaped electroluminescent material SP has largemolecular weight and good solubility, and can be used for preparing a large-area flexible display device by adopting a solution processing technology. And the method has huge development potential andprospect in the field of organic electronic display.
Organic light-emitting molecule and application thereof in organic light-emitting diode (by machine translation)
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Paragraph 0065-0070, (2020/10/30)
The invention discloses an organic light-emitting molecule and application thereof in an organic light-emitting diode. The molecule has the characteristics of wide band gap, high fluorescence quantum yield, high electron mobility, high hole mobility, high exciton utilization rate and the like. The molecules have an asymmetric structure, molecule aggregation can be inhibited, and exciton quenching is reduced. In addition, it is possible to adjust its emission spectrum by changing the connection site of the two units. The organic electroluminescent device can be used for preparing high-efficiency blue-light organic electroluminescent devices with different emission wavelengths. (by machine translation)