In a first aspect, the present invention relates to a perovskite material comprising negatively charged layers alternated with and neutralized by positively charged layers; the negatively charged layers having a general formula selected from the list consisting of: L
n−1
M
n
X
3n+1
, L
n
M
n
X
3n+2
, and L
n−1
M′
n
X
3n+3
, and the positively charged layers comprising: one or more organic ammonium cations independently selected from monovalent cations Q and divalent cations Q′, or a polyvalent cationic conjugated organic polymer Z, wherein Q, Q′ and Z comprise each a π-conjugated system in which at least 8 and preferably at least 10 atoms participate, L is a monovalent cation, M
n
are n independently selected metal cations averaging a valence of two, M′
n
are n independently selected metal cations averaging a valence equal to 2+2/n, X is a monovalent anion, and n is larger than 1.
A thiazolothiazole derivative is represented by the following Formula (I). In Formula (I), each R
1
independently represents a straight chain alkyl group having 3 to 20 carbon atoms, a straight chain alkoxy group having 3 to 20 carbon atoms, a branched alkyl group having 3 to 20 carbon atoms, or a branched alkoxy group having 3 to 20 carbon atoms; and each R
2
independently represents a hydrogen atom, a straight chain alkyl group having 1 to 20 carbon atoms, a straight chain alkoxy group having 1 to 20 carbon atoms, a branched alkyl group having 3 to 20 carbon atoms, or a branched alkoxy group having 3 to 20 carbon atoms.
POLYMERS OF 8,9-DIHYDROBENZO[DEF]CARBAZOLE AND THEIR USE AS ORGANIC SEMICONDUCTORS
申请人:Blouin Nicolas
公开号:US20130001476A1
公开(公告)日:2013-01-03
The invention relates to novel polymers containing 8,9-dihydrobenzo[def]carbazole units, methods and materials for their preparation, their use as semiconductors in organic electronic (OE) devices, and to OE devices comprising these polymers.
ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY MEDIUM
申请人:IMAI Akira
公开号:US20100276672A1
公开(公告)日:2010-11-04
An organic electroluminescent device includes: a pair of electrodes including a positive electrode and a negative electrode, at least one of the electrodes being transparent or semi-transparent; and an organic compound layer including one or more layers interposed between the pair of electrodes, at least one layer included in the organic compound layer containing one or more compounds represented by the following formula (I):
in formula (I), R
1
s each independently representing a linear alkyl, linear alkoxy, branched alkyl, or branched alkoxy group having from 3 to 20 carbon atoms; and R
2
s each independently representing a hydrogen atom, a linear alkyl group having from 1 to 20 carbon atoms, a linear alkoxy group having from 1 to 20 carbon atoms, a branched alkyl group having from 3 to 20 carbon atoms, or a branched alkoxy group having from 3 to 20 carbon atoms.