Versatile Direct Cyclization Constructs Spiro‐acridan Derivatives for Highly Efficient TADF emitters
作者:He Liu、Zhiwen Liu、Ganggang Li、Huaina Huang、Changjiang Zhou、Zhiming Wang、Chuluo Yang
DOI:10.1002/anie.202103187
日期:2021.5.25
provide a wide possibility to assemble efficient TADF emitters. As an example, D2T‐TR with high photoluminescent quantum yield and proper TADF character is applied in organic lightemitting diodes (OLEDs) which achieves a maximum external quantum efficiency (EQE) of 27.1 %. This work shows us a bright inspiration on developing excellent organic optoelectronic materials and an effective tool to realize it
The present invention concerns particular fluorenes, the use of the compound in an electronic device, and an electronic device containing at least one of these compounds. The present invention further concerns a method for producing the compound and a formulation and composition containing one or more of the compounds.
Spirobifluorene derivative-based materials for electronic devices
申请人:Merck Patent GmbH
公开号:US10032989B2
公开(公告)日:2018-07-24
The present application relates to spirobifluorene derivatives of a formula (I), to the use thereof in electronic devices, and to processes for preparing said derivatives.
Palladium supported SBA-functionalizd 1,2-dicarboxylic acid: The first Pd-based heterogeneous synthesis of fluorenones
作者:Abolfazl Mohammadkhanni、Ayoob Bazgir
DOI:10.1016/j.mcat.2017.12.035
日期:2018.3
The first Pd-based heterogeneous homo- and cross-coupling reactions for the fluorenones synthesis are reported. The palladium supported SBA-functionalizd 1,2-dicarboxylic acid (Pd@DCA-SBA) was prepared and characterized by the FT-IR, TGA, AAS, TEM, and EDS measurements. The prepared catalyst exhibited a high performance in some homo and cross coupling reactions for the synthesis of fluorenone derivatives using 2-bromo or 2,7-dibromo fluorenone in ethanol-water as green solvent medium. (C) 2017 Elsevier B.V. All rights reserved.
VERBINDUNGEN UND ORGANISCHE ELEKTROLUMINESZIERENDE VORRICHTUNGEN