1030380-36-9Relevant articles and documents
Organic compound, polymer, mixture, composition, and organic electronic device
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Paragraph 0229; 0233; 0237, (2020/02/14)
The invention discloses an organic compound (1), and a polymer, a mixture, a composition and an organic electronic device which contain contain the organic compound. According to the invention, triphenylene, carbonyl and aza-aromatic ring groups are prope
Universal bipolar host material containing pyridine group, as well as preparation and application thereof in organic light emitting diodes
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Paragraph 0046; 0048-0050; 0063; 0065-0066; 0077; 0079-0080, (2019/04/27)
The invention belongs to the technical field of organic photoelectric materials, and discloses a universal bipolar host material containing a pyridine group, as well as preparation and application thereof in organic light emitting diodes. The universal bipolar host material containing a pyridine group has a structure as shown in the specification, wherein n is an integer of 1-10, R1 is a hydrogenatom or alkyl chain, and Ar is an aromatic nucleus derivative electron-donating group. The invention further discloses a method for preparing the host material. The host material has excellent electron transmission performance and hole transporting performance since triplet energy is increased, can be used for preparing blue-light, green-light and red-light PHOLEDs with excellent performance, suchas high efficiency, low efficiency roll-off and the like. High-performance white-light PHOLEDs of single host is expected to achieve by utilizing the host material. The host material can be applied to the field of organic photoelectric devices.
Novel hole blocking materials based on 2,6-disubstituted dibenzo[: B, d] furan and dibenzo [b, d] thiophene segments for high-performance blue phosphorescent organic light-emitting diodes
Jang, Seokhoon,Lee, Kyung Hyung,Lee, Jun Yeob,Lee, Youngu
, p. 826 - 834 (2019/02/01)
Novel hole blocking materials (HBMs) based on 2,6-disubstituted dibenzo[b,d]furan and dibenzo[b,d]thiophene segments, 3,3′,3′′,3′′′-(dibenzo[b,d]furan-2,6-diylbis(benzene-5,3,1-triyl))tetrapyridine (26DBFPTPy) and 3,3′,3′′,3′′′-(dibenzo[b,d]thiophene-2,6-
COMPOUND, PREPARING METHOD THEREFOR, AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
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Paragraph 0034; 0037; 0038; 0039, (2019/12/10)
The compound is represented by Formula 1. In Formula 1, X is O or S, and R1 and R2 are independently selected from the group consisting of aryl, heteroaryl and —P(O)—R3R4, where the aryl, heteroaryl and —P(O)—R3R4 are substituted or unsubstituted with 1 to 4 substituents selected from the group consisting of (C1-C4)alkyl, (C1-C4)alkoxy, aryl and heteroaryl. The “aryl” means a group consisting of 6 to 10 cyclic rings, and the “heteroaryl” means a group consisting of 5 to 14 cyclic rings having 1 to 4 heteroatoms selected from oxygen, sulfur and nitrogen (including quaternary nitrogen). R3 and R4 are independently selected from aryl or heteroaryl.
Organic compound based on triazine and quinoxaline and application thereof to OLED (organic light emitting diode) device
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Paragraph 0057; 0058; 0059, (2018/03/26)
The invention relates to an organic compound based on triazine and quinoxaline and application thereof in an OLED (organic light emitting diode) device. The organic compound has the advantages that the glass transition temperature and the molecular therma
Organic compound based on triazine and benzimidazole and application thereof to organic light-emitting diode (OLED) device
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Paragraph 0054; 0055; 0056, (2017/09/01)
The invention relates to an organic compound based on triazine and benzimidazole and application thereof to an organic light-emitting diode (OLED) device. The compound disclosed by the invention has a high vitrification temperature and high molecular thermal stability; the compound has a low absorption rate and a high refraction rate in the field of visible light, and can be applied to a CPL (Circular-Polarizing Filter) layer of the OLED device to effectively increase the light output efficiency of the OLED device; the compound also has a deep HOMO (Highest Occupied Molecular Orbital) energy level and a high electron mobility, can be taken as a hole-blocking/electron transport layer material of the OLED device, and can effectively block holes or prevent energy from being transported from a light-emitting layer to one side of an electron layer, so that the compound efficiency of the holes and electrons on the light-emitting layer is increased, and the light-emitting efficiency and the service life of the OLED device are increased and prolonged.
Excimer formation promoted by steric hindrance in dual core chromophore for organic light-emitting diodes emitters
Lee, Jaehyun,Kim, Beomjin,Park, Jongwook
, p. 8854 - 8857 (2016/07/27)
A new dual core derivative of 1-(3,5-dipyrid-3-yl-phenyl)-6-(10-(3,5-dipyrid-3-yl-phenyl)-anthracen-9-yl)-pyrene (3P-AP-3P) was synthesized by introducing pyridine groups. 1-[1,1';3',1"]Terphenyl-5'-yl-6-(10-[1,1';3',1"]terphenyl-5'-yl-anthracen-9-yl)-pyrene (TP-AP-TP) was used to compare with 3P-AP-3P. Unlike TP-AP-TP, 3P-AP-3P exhibited an excimer emission at 602 nm by introducing pyridine groups despite its highly twisted core. Two materials were used as emitting layer (EML) in OLED devices: ITO/2-TNATA (60 nm)/NPB (15 nm)/the synthesized materials (35 nm)/Alq3 (20 nm)/LiF (1 nm)/Al (200 nm). The 3P-AP-3P device exhibited EL maximum values at 463 nm and 601 nm.
CONDENSED-CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DIODE INCLUDING THE CONDENSED-CYCLIC COMPOUND
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Page/Page column, (2014/04/03)
A condensed-cyclic compound and an organic light-emitting diode including the condensed-cyclic compound.
Hybrid heterocycle-containing electron-transport materials synthesized by regioselective Suzuki cross-coupling reactions for highly efficient phosphorescent OLEDs with unprecedented low operating voltage
Liu, Ming,Su, Shi-Jian,Jung, Min-Cherl,Qi, Yabing,Zhao, Wei-Ming,Kido, Junji
, p. 3817 - 3827,11 (2020/09/16)
A series of hybrid heterocyle-containing electron-transport materials (ETMs) with different pyridine substitution positions in a single molecule were successfully synthesized by regioselective sequential palladium-catalyzed Suzuki cross-coupling reactions. B3LYP calculations show that the experimental regioselectivity is consistent with the trends in calculated bond dissociation energies of the carbon-halogen (C-X) bonds of the reactants and intermediates. The two carbon species associated with C-N and C-C can be detected by X-ray photoelectron spectroscopy. Extremely low turn-on voltages (Von) of 2.1 V for electroluminescence, which are readily 0.2-0.3 V lower than the minimum value of the emitted photon energy (hv)/e, were experimentally achieved by utilizing the developed ETMs as an electron-transport and hole/exciton-block layer for the classical fac-tris(2-phenylpyridine) iridium (Ir(PPy) 3)-based green phosphorescent organic light-emitting devices (OLEDs). In addition, hitherto the lowest operating voltages of 2.39, 2.72, and 3.88 V for 100, 1000, and 10 000 cd m-2 were achieved with simultaneously improved external quantum efficiency (ηext) to give a high power efficiency, and the operating voltage for 100 cd m-2 is already corresponding to the value of hv/e. Atomic force microscopy measurements reveal morphological fine structure of the thin film samples of ETMs with a pyrimidine core, which possibly contributes to the low driving voltages that were achieved for the devices that are based on these ETMs. These findings indicate that aside from the ultralow operating voltage well-balanced carriers can be also achieved with a finely synthesized hybrid heterocyle-containing ETM as a nondoped electron-transport layer, and the B3LYP calculation is an effective method to predict the regioselective cross-coupling reactions for fine design of such an ETM.