So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Xu, Zeng; Gu, Jiabao; Qiao, Xianfeng; Qin, Anjun; Tang, Ben Zhong; Ma, Dongge researched the compound: Bis[2-(1-isoquinolinyl-N)phenyl-C](2,4-pentanedionato-O2,O4)iridium(III)( cas:435294-03-4 ).Computed Properties of C35H27N2O2Ir.They published the article 《Highly Efficient Deep Blue Aggregation-Induced Emission Organic Molecule: A Promising Multifunctional Electroluminescence Material for Blue/Green/Orange/Red/White OLEDs with Superior Efficiency and Low Roll-Off》 about this compound( cas:435294-03-4 ) in ACS Photonics. Keywords: blue aggregation emission organic multifunctional electroluminescent LED efficiency rolloff. We’ll tell you more about this compound (cas:435294-03-4).
For the constant demand of organic light-emitting diodes (OLEDs) with high efficiency, long lifetime, and low cost for display and lighting applications, the development of high-performance organic electroluminescence materials is key. Aggregation-induced emission (AIE) luminogens (AIEgens) provide a promising choice for their excellent performance in nondoped devices. A multifunctional deep blue AIE material, which can be used not only as an excellent blue emitter but also as a good host of green/orange/red phosphors, is reported. A deep blue nondoped OLED with a CIEy of 0.08 and high external quantum efficiency (EQE) of 7.0% is achieved. Green/orange/red phosphorescent OLEDs with high efficiency and low roll-off are obtained. Hybrid white OLEDs (WOLEDs) based on the deep blue AIEgen exhibit simultaneously high CRI (>90), excellent efficiency (EQEmax> 25%, PEmax = 99.9 lm W-1 for 2-color WOLEDs, PEmax = 60.7 lm W-1 for 4-color WOLEDs), low roll-off (PE1000nit = 72.1 lm W-1 for 2-color WOLEDs, PE1000nit = 43.5 lm W-1 for 4-color WOLEDs), and superior stable color, indicative of the multifunction of AIEgens. Accordingly, this work opens a new direction for achieving high-performance OLEDs, particularly offering a smart but simple way to depress the efficiency roll-off and reduce the cost of OLEDs for practical applications.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica