205-25-4Relevant articles and documents
A design strategy of bipolar host materials for more than 30 times extended lifetime in phosphorescent organic light-emitting diodes using benzocarbazole and quinazoline
Kim, Sung Moo,Yun, Ju Hui,Han, Si Hyun,Lee, Jun Yeob
, p. 9072 - 9079 (2017)
Stable host materials based on benzocarbazole and quinazoline were synthesized to establish a design strategy of bipolar hosts for elongated lifetime in orange phosphorescent organic light-emitting diodes (PHOLEDs). Three host materials with benzocarbazole and quinazoline connected directly or through a phenyl linker were compared in terms of the device lifetime of the orange PHOLEDs. The connection between benzocarbazole and quinazoline through a phenyl linker was an effective way of improving the lifetime of the red PHOLEDs by more than twice and the molecular orbital distribution of the hosts was well correlated with the lifetime of the PHOLEDs. In particular, the lifetime of the PHOLEDs was extended by more than 30 times compared to a conventional PHOLED with a common CBP host.
Synthesis of non-C2symmetrical NOBIN-type biaryls through a cascade N -arylation and [3,3]-sigmatropic rearrangement from O -arylhydroxylamines and diaryliodonium salts
Gao, Hongyin,Liu, Fengting,Lu, Haifeng,Qu, Jiatong,Wang, Min
supporting information, p. 7246 - 7251 (2021/08/30)
We developed herein a regioselective construction of non-C2 symmetrical NOBIN-type biaryls through a cascade N-arylation and [3,3]-sigmatropic rearrangement from O-arylhydroxylamines and diaryliodonium salts under mild conditions. The employment of copper salt could inhibit the further O-arylation of the newly formed biaryl products, otherwise, O-arylated NOBIN-type products were furnished in moderate to good isolated yields. The products of this protocol can be further converted into highly valuable functional molecules and heterocycles.
COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND A ELECTRONIC DEVICE THEREOF
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Paragraph 0134; 0148-0152, (2020/05/30)
The present invention relates to a novel compound, an organic electric element using the same, and an electronic device thereof. According to the present invention, a luminous efficiency, a color purity and a lifespan of the element can be improved and a driving voltage can be lowered. The organic electric element comprises: an anode; a cathode; and an organic material layer formed between the anode and the cathode.
COMPOUND FOR ORGANIC ELECTRIC ELEMENT AND ORGANIC ELECTRIC DEVICE COMPRISING THE SAME
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Paragraph 0363-0365; 0368-0369; 0385-0387; 0390-0391, (2020/11/28)
The present invention relates to a compound for an organic electronic element and an organic electronic element using the same. To the present invention, an organic electronic element having high luminous efficiency, low driving voltage, and high heat resistance can be provided and the color purity and lifetime of the organic electronic element can be improved. (by machine translation)