ORGANIC ELECTROLUMINESCENCE ELEMENT AND ELECTRONIC APPARATUS
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20210005826A1
公开(公告)日:2021-01-07
An organic electroluminescence device comprising a cathode, an anode and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound, a second compound having a hole mobility larger than that of the first compound, and a dopant material showing a fluorescent spectrum with a half width of 30 nm or less; and an organic electroluminescence device comprising a cathode, an anode and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises a fluorescent emitting layer and the fluorescent emitting layer comprises a first compound, a third compound having an affinity larger than that of the first compound, and a dopant material showing a fluorescent spectrum with a half width of 30 nm or less and the content of the third compound in the fluorescent emitting layer is less than that of the first compound in the fluorescent emitting layer are excellent in their performance.
ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE
申请人:IDEMITSU KOSAN CO., LTD.
公开号:US20210005825A1
公开(公告)日:2021-01-07
An organic electroluminescence device comprising a cathode, an anode and an organic layer disposed between the cathode and the anode, wherein the organic layer comprises a fluorescent emitting layer and the fluorescent emitting layer comprises at least one first compound selected from the compounds represented by formulae (19), (21), (22), and (23), a second compound selected from the compounds represented by formula (3a), and a dopant material selected from the compounds represented by formulae (D1) and (D2) is excellent in its performance.
An organic electroluminescence device includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (1):
wherein each of Z
11
and Z
12
independently represents an aromatic heterocyclic ring or an aromatic hydrocarbon ring; R
11
represents a hydrogen atom or a substituent, provided that a plurality of R
11
s are the same or different; m represents an integer of 1 or more; and L
1
represents a single bond or an m-valent linking group and is linked to any one of C atoms in R
11
, Z
11
and Z
12
, provided that when m is 1, L
1
does not exist.
Strained Dehydrogenative Ring Closure of Phenylcarbazoles
作者:Alexander W. Jones、Marie-Laure Louillat-Habermeyer、Frederic W. Patureau
DOI:10.1002/adsc.201401136
日期:2015.3.23
and strained dehydrogenativeringclosure, for example, in phenylcarbazoles? Since the works of Buchwald and Fagnou, palladium‐catalysed ring‐closing dehydrogenative reactions are legion, but will not operate when the strain at the reductive elimination stage becomes too large. We propose here a “muscled up” super‐oxidative palldium‐catalysed CH activation method for the ringclosure of strained phenylcarbazoles
Novel host compounds containing indolo[3,2,1-jk]carbazole moiety are disclosed. These compounds are useful in phosphorescent OLEDs and particularly as hosts and/or electron-blocking layer materials.