The invention relates to compounds with benzindenofluorene base bodies having a structure of formula (I):
and to the use thereof in electronic devices, in particular in organic electroluminescent devices.
The invention relates to compounds with benzindenofluorene base bodies and to the use thereof in electronic devices, in particular in organic electroluminescent devices.
ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
申请人:Universal Display Corporation
公开号:US20190319194A1
公开(公告)日:2019-10-17
A composition formed of a mixture of two compounds having similar thermal evaporation properties that are pre-mixed into an evaporation source that can be used to co-evaporate the two compounds into an emission layer in OLEDs via vacuum thermal evaporation process is disclosed. The first and second compounds can have an evaporation temperature T
1
and T
2
, respectively, of 150 to 350° C., and the absolute value of T
1
-T
2
can be less than 20° C. The first compound can have a concentration C
1
in the mixture and a concentration C
2
in a film formed by evaporating the mixture in a vacuum deposition tool at a constant pressure between 1×10
−6
Torr to 1×10
−9
Torr, at a 2 Å/sec deposition rate on a surface positioned at a predefined distance away from the mixture being evaporated, where the absolute value of (C
1
−C
2
)/C
1
is less than 5%.
[DE] MATERIALIEN FÜR ELEKTRONISCHE VORRICHTUNGEN<br/>[EN] MATERIALS FOR ELECTRONIC DEVICES<br/>[FR] MATÉRIAUX POUR DISPOSITIFS ÉLECTRONIQUES
申请人:MERCK PATENT GMBH
公开号:WO2014111269A2
公开(公告)日:2014-07-24
Die vorliegende Anmeldung betrifft Verbindungen mit Benzindenofluoren- Grundkörper und ihre Verwendung in elektronischen Vorrichtungen, insbesondere in organischen Elektrolumineszenzvorrichtungen.