1024598-06-8Relevant academic research and scientific papers
To improve the efficiency of thermally activated delayed fluorescence OLEDs by controlling the horizontal orientation through optimizing stereoscopic and linear structures of indolocarbazole isomers
Xiang, Songpo,Lv, Xialei,Sun, Shuaiqiang,Zhang, Qing,Huang, Zhi,Guo, Runda,Gu, Honggang,Liu, Shiyuan,Wang, Lei
, p. 5812 - 5820 (2018)
Molecular structures play a critical role in forming the horizontal orientation of the emission transition dipole of light-emitting TADF materials which can improve the light outcoupling efficiency of OLEDs. Here, two TADF emitters of IndCzpTr-1 and IndCzpTr-2 based indolocarbazole derivatives with stereoscopic and linear structures were designed and synthesized. With a smaller ΔEST, better thermal stability and preferential horizontal orientation with an orientation order parameter S of -0.264, a green TADF OLED device based on IndCzpTr-2 realized a maximum EQE of 30.0% and maximum current efficiency (CE) of 82.6 cd A-1 without using any optical outcoupling technology; meanwhile, a sky-blue TADF OLED with a maximum EQE of 14.5% and a maximum CE of 28.1 cd A-1 was obtained for IndCzpTr-1 with a homologous device structure.
ORGANIC COMPOUNDS AND ORGANIC ELECTRO LUMINESCENCE DEVICE COMPRISING THE SAME
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Paragraph 0137; 0145-0150, (2021/07/13)
The present invention relates to a novel compound and an organic electroluminescent device comprising the same. The compound according to the present invention is used in an organic layer, preferably a light emitting layer of an organic electroluminescent device, thereby improving light emitting efficiency, driving voltage, lifespan, and the like of the organic electroluminescent device.
Organic compound as well as electronic element and device using same
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Paragraph 0028; 0235-0236; 0258, (2021/05/19)
The invention relates to the technical field of organic materials, and provides an organic compound as well as an electronic element and an electronic device using the same. The structure of the organic compound is composed of a chemical formula I and a chemical formula II. When the organic compound is used for a light-emitting layer of an organic electroluminescencedevice, the efficiency of the device can be effectively improved, and the service life of the organic electroluminescence device is prolonged.
Novel hetero-cyclic compound and organic light emitting device comprising the same
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Paragraph 0183-0186, (2021/06/01)
The present invention provides a novel heterocyclic compound and an organic light emitting device using the same.
Nitrogen-containing compound and electronic component comprising nitrogen-containing compound and electronic device
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Paragraph 0205-0208, (2021/06/26)
The invention provides a nitrogen-containing compound and an electronic component comprising nitrogen-containing compound and an electronic device, and belongs to the technical field of organic electroluminescence. The nitrogen-containing compound has a polycyclic conjugation characteristic, a condensed indolocarbazole parent structure, high bond energy between atoms and good thermal stability, is beneficial to solid-state accumulation between molecules, and shows long service life as a luminescent layer material in an organic electroluminescent device. The structure is formed by connecting a benzoxazole or benzothiazole group and a nitrogen-containing group (triazine, pyridine and pyrimidine) through a mother nucleus structure of a fused aromatic ring; the combination enables the partial structure to have high dipole moment, so that the polarity of the material is improved. When the nitrogen-containing compound is used as a luminescent layer material of an organic electroluminescent device, the electronic transmission performance of the device is effectively improved, the luminous efficiency of the device is improved, and the service life of the device is prolonged.
Organic compound, electronic component using same, and electronic device
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Paragraph 0180-0182, (2021/12/07)
The application relates to an organic compound and an electronic element and an electronic device using the same, wherein the compound is fixedly connected 4 - phenanthryl in the indole carbazole parent nucleus compound, and the compound achieves a high first triplet energy level. The transport and recombination of carriers can be ensured and the exciton energy is efficiently transferred to the guest material. When the compound is used for the light emitting layer host material of the device, the device has excellent luminous efficiency. On the other hand, the compound has good exciton resistance, and the service life of the device can be prolonged.
NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
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Paragraph 0231-0234, (2021/06/22)
The present invention provides a novel compound and an organic light emitting device using the same.
ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
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Paragraph 0345-0348, (2021/04/20)
The invention provides an organic photoelectric device and a display device. An organic optoelectronic device and a display device including the same are disclosed. The organic photoelectric device includes an anode and a cathode opposite to each other, a light emitting layer between the anode and the cathode, a hole transport layer between the anode and the light emitting layer, and a hole transport auxiliary layer between the light emitting layer and the hole transport layer, wherein the light emitting layer includes a composition including a first compound represented by Chemical Formula 1and a second compound represented by Chemical Formula 2, and the hole transport auxiliary layer includes a third compound represented by Chemical Formula 3. Detailed description of Chemical Formulae 1to 3 is the same as described in the specification.
Deuterated organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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Paragraph 0882; 0888-0892, (2020/12/15)
The present invention relates to an organic electroluminescent compound represented by chemical formula A and an organic light emitting device comprising the same. Substituents Y, Ar2 , L3 , K, p and x are as defined in the description of the invention. [Chemical A] (by machine translation)
Compound taking spirofluorene anthrone as core, preparation method and applications thereof
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Paragraph 0089; 0091-0092; 0095; 0109; 0111, (2020/03/09)
The invention relates to a compound taking spirofluorene anthrone as a core, a preparation method and applications thereof, wherein the structure of the compound is formed by linking spirofluorene anthrone to a five-membered ring fused ring structure, and the whole molecule is a large rigid structure and has a high triplet state energy level (T1). According to the invention, the compound is high in structural stereoscopicity, large in steric hindrance and not easy to rotate, so the chemical stability of the material is improved, and the compound has high glass transition temperature and high molecular thermal stability; the HOMO distribution position and the LUMO distribution position of the compound are separated from each other, so that the compound has appropriate HOMO and LUMO energy levels; and with the application of the compound in an OLED device, the light emitting efficiency and the service life of the device can be effectively improved.

