《Nanosecond-time-scale delayed fluorescence molecule for deep-blue OLEDs with small efficiency rolloff》 was written by Kim, Jong Uk; Park, In Seob; Chan, Chin-Yiu; Tanaka, Masaki; Tsuchiya, Youichi; Nakanotani, Hajime; Adachi, Chihaya. Computed Properties of C51H42O3Pd2 And the article was included in Nature Communications in 2020. The article conveys some information:
Aromatic organic deep-blue emitters that exhibit thermally activated delayed fluorescence (TADF) can harvest all excitons in elec. generated singlets and triplets as light emission. However, blue TADF emitters generally have long exciton lifetimes, leading to severe efficiency decrease, i.e., rolloff, at high c.d. and luminance by exciton annihilations in organic light-emitting diodes (OLEDs). Here, we report a deep-blue TADF emitter employing simple mol. design, in which an activation energy as well as spin-orbit coupling between excited states with different spin multiplicities, were simultaneously controlled. An extremely fast exciton lifetime of 750 ns was realized in a donor-acceptor-type mol. structure without heavy metal elements. An OLED utilizing this TADF emitter displayed deep-blue electroluminescence (EL) with CIE chromaticity coordinates of (0.14, 0.18) and a high maximum EL quantum efficiency of 20.7%. Further, the high maximum efficiency were retained to be 20.2% and 17.4% even at high luminance. The experimental process involved the reaction of Tris(dibenzylideneacetone)dipalladium(0)(cas: 51364-51-3Computed Properties of C51H42O3Pd2)
Tris(dibenzylideneacetone)dipalladium(0)(cas: 51364-51-3) is used in the preparation of semiconducting polymers processed from nonchlorinated solvents into high performance thin film transistors.Computed Properties of C51H42O3Pd2It is used as catalyst for the synthesis of epoxides, alpha-arylation of ketones, in combination with BINAP for the asymmetric heck arylation of olefins, site-selective benzylic sp3 palladium-catalyzed direct arylation and homoallylic diamination of terminal olefins.
Referemce:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI