POLYMER LIGHT-EMITTING DEVICE, POLYMER COMPOUND, COMPOSITION, LIQUID COMPOSITION, AND CONDUCTIVE THIN FILM
申请人:Sumitomo Chemical Company, Limited
公开号:EP2110399A1
公开(公告)日:2009-10-21
Disclosed is a polymer light-emitting device having a light-emitting layer arranged between an anode and a cathode, and a hole transport layer arranged between the light-emitting layer and the anode. This polymer light-emitting device is characterized in that the hole transport layer is a layer containing a polymer compound which contains a repeating unit represented by the general formula (I) below, a repeating unit represented by the general formula (II) below and a repeating unit represented by the general formula (III) below.
(In the formula (I), R1, R2, R3 and R4 may be the same or different and respectively represent a hydrogen atom or the like; R5, R6, R7 and R8 may be the same or different and respectively represent an alkyl group or the like; and a, b, c and d may be the same or different and respectively represent an integer of 0-3. When a plurality of R5's, R6's, R7's and R8's are present, they may be the same as or different from one another.)
-Ar1- (II)
(In the formula (II), Ar1 represents a divalent aromatic amine.)
-Ar2- (III)
(In the formula (III), Ar2 represents an arylene group or a divalent heterocyclic group.)
本发明公开了一种聚合物发光器件,该器件具有一个位于阳极和阴极之间的发光层,以及一个位于发光层和阳极之间的空穴传输层。这种聚合物发光器件的特征在于,空穴传输层是一层含有聚合物化合物的层,该聚合物化合物含有以下通式(I)表示的重复单元、以下通式(II)表示的重复单元和以下通式(III)表示的重复单元。
(在式(I)中,R1、R2、R3 和 R4 可以相同或不同,并分别代表氢原子或类似物;R5、R6、R7 和 R8 可以相同或不同,并分别代表烷基或类似物;a、b、c 和 d 可以相同或不同,并分别代表 0-3 的整数。当存在多个 R5、R6、R7 和 R8 时,它们可以彼此相同或不同)。
-AR1- (II)
(在式(II)中,Ar1 代表二价芳香胺)。
-Ar2-(III)
式(III)中,Ar2 代表芳烯基团或二价杂环基团)。