BRIDGED TRIARYLAMINES AND -PHOSPHINES AS MATERIALS FOR ELECTRONIC DEVICES
申请人:Parham Amir Hossain
公开号:US20130026422A1
公开(公告)日:2013-01-31
The present invention relates to a compound according to formula (I), to the use thereof in an electronic device and to an electronic device which comprises one or more compounds according to formula (I).
Diarylmethylene-bridged 4,4′-(bis(9-carbazolyl))biphenyl: morphological stable host material for highly efficient electrophosphorescence
作者:Zuoquan Jiang、Xichen Xu、Zhiqiang Zhang、Chuluo Yang、Zhongyin Liu、Youtian Tao、Jingui Qin、Dongge Ma
DOI:10.1039/b910247g
日期:——
A novel compound (BCBP) based on the modification of a well-known host material 4,4â²-(bis(9-carbazolyl))biphenyl (CBP) through arylmethylene bridge linkage was synthesized, and fully characterized. Its thermal, electrochemical, electronic absorption and photoluminescent properties were studied. A high glass transition temperature (Tg) of 173 °C is observed for BCBP due to the introduction of the bridged structure, remarkably contrasting with a low Tg of 62 °C for CBP. Furthermore, the bridged structure enhances the conjugation and raises the HOMO energy, thus facilitating hole-injection and leading to a low turn-on voltage in an electroluminescent device. With the device structure of ITO/MoO3/NPB/Ir complex: BCBP/BCP/Alq3/LiF/Al, maximum power efficiencies of 41.3 lm/W and 6.3 lm/W for green- and blue-emitting OLED were achieved, respectively.
[DE] ÜBERBRÜCKTE TRIARYLAMINE UND -PHOSPHINE ALS MATERIALIEN FÜR ELEKTRONISCHE VORRICHTUNGEN<br/>[EN] BRIDGED TRIARYLAMINES AND -PHOSPHINES AS MATERIALS FOR ELECTRONIC DEVICES<br/>[FR] TRIARYLAMINES ET -PHOSPHINES PONTÉES EN TANT QUE MATÉRIAUX POUR DISPOSITIFS ÉLECTRONIQUES
申请人:MERCK PATENT GMBH
公开号:WO2011128017A1
公开(公告)日:2011-10-20
Die vorliegende Erfindung betrifft eine Verbindung gemäß Formel (I) deren Verwendung in einer elektronischen Vorrichtung sowie eine elektronische Vorrichtung, welche eine oder mehrere Verbindungen gemäß Formel (I) enthält.