申请人:——
公开号:US20040009368A1
公开(公告)日:2004-01-15
Electroluminescent device comprising in this order
(a) an anode
(b) a hole transporting layer
(c) a light-emitting layer
(d) optionally an electron transporting layer and
(e) a cathode
and a light-emitting substance, wherein the light-emitting substance is a diketopyrrolopyrrole represented by formula I or formula III
1
wherein R
1
and R
2
, independently from each other, stand for C
1
-C
25
-alkyl, allyl which can be substituted one to three times with C
1
-C
3
alkyl or Ar
3
, or —CR
3
R
4
—(CH
2
)
m
—Ar
3
, wherein R
3
and R
4
independently from each other stand for hydrogen or C
1
-C
4
alkyl, or phenyl which can be substituted one to three times with C
1
-C
3
alkyl,
Ar
3
stands for phenyl or 1- or 2-naphthyl which can be substituted one to three times with C
1
-C
8
alkyl, C
1
-C
8
alkoxy, halogen or phenyl, which can be substituted with C
1
-C
8
alkyl or C
1
-C
8
alkoxy one to three times, and m stands for 0, 1, 2, 3 or 4,
Ar
1
and Ar
2
, independently from each other, stand for aryl radicals, preferably for
2
3
wherein
R
5
, R
6
and R
7
, independently from each other, stand for hydrogen, cyano, halogen, C
1
-C
6
alkyl, —NR
8
R
9
, —OR
10
, —S(O)
n
R
8
, —Se(O)
n
R
8
, or phenyl, which can be substituted one to three times with C
1
-C
8
alkyl or C
1
-C
8
alkoxy,
wherein R
8
and R
9
, independently from each other, stand for hydrogen, phenyl, C
1
-C
25
-alkyl, C
5
-C
12
-cycloalkyl, —CR
3
R
4
—(CH
2
)
m
-Ph, R
10
, wherein R
10
stands for C
6
-C
24
-aryl, or a saturated or unsaturated heterocyclic radical comprising five to seven ring atoms, wherein the ring consists of carbon atoms and one to three hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur, wherein Ph, the aryl and heterocyclic radical can be substituted one to three times with C
1
-C
8
alkyl, C
1
-C
8
alkoxy, or halogen, or R
8
and R
9
stand for —C(O)R
10
, wherein R
11
, can be C
1
-C
25
-alkyl, C
5
-C
12
-cycloalkyl, R
10
, —OR
12
or —NR
13
R
14
, wherein R
12
, R
13
, and R
14
stand for C
1
-C
25
-alkyl, C
5
-C
12
-cycloalkyl, C
6
-C
24
-aryl, or
a saturated or unsaturated heterocyclic radical comprising five to seven ring atoms, wherein the ring consists of carbon atoms and one to three hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur, wherein the aryl and heterocyclic radical can be substituted one to three times with C
1
-C
8
alkyl or C
1
-C
8
alkoxy, or —NR
8
R
9
stands for a five- or six membered heterocyclic radical in which R
8
and R
9
together stand for tetramethylene, pentamethylene, —CH
2
—CH
2
—O—CH
2
—CH
2
—, or —CH
2
—CH
2
—NR
5
—CH
2
—CH
2
—, preferably —CH
2
—CH
2
—O—CH
2
—CH
2
—, and n stands for 0, 1, 2 or 3,
and wherein Z stands for a diradical selected from the group consisting of a single bond, C
2
-C
6
alkylene, which can be substituted one to three times with C
1
-C
4
alkyl, C
1
-C
4
alkoxy, or phenyl, phenylene or naphthylene, processes for the preparation of compounds I, its uses and compositions comprising the compounds I and/or III.
电致发光装置,包括以下组件:(a)阳极,(b)孔传输层,(c)发光层,(d)可选的电子传输层和(e)阴极,以及一种发光物质,其中该发光物质是由式I或式III1表示的二酮吡咯烷基吡咯烷衍生物,其中R1和R2独立地表示C1-C25烷基、可以用C1-C3烷基或Ar3取代一到三次的烯丙基,或—CR3R4—(CH2)m—Ar3,其中R3和R4独立地表示氢或C1-C4烷基,或可以用C1-C3烷基取代一到三次的苯基;Ar3表示可以用C1-C8烷基、C1-C8烷氧基、卤素或可以用C1-C8烷基或C1-C8烷氧基取代一到三次的苯基或1-或2-萘基;m表示0、1、2、3或4;Ar1和Ar2独立地表示芳基基团,优选为23,其中R5、R6和R7独立地表示氢、氰基、卤素、C1-C6烷基、—NR8R9、—OR10、—S(O)nR8、—Se(O)nR8或可以用C1-C8烷基或C1-C8烷氧基取代一到三次的苯基;其中R8和R9独立地表示氢、苯基、C1-C25烷基、C5-C12环烷基、—CR3R4—(CH2)m-Ph、R10,其中R10表示C6-C24芳基,或包含五到七个环原子的饱和或不饱和杂环基团,其中环由碳原子和从氮、氧和硫中选择的一到三个杂原子组成,其中Ph,芳基和杂环基团可以用C1-C8烷基、C1-C8烷氧基或卤素取代一到三次,或R8和R9表示—C(O)R10,其中R11可以是C1-C25烷基、C5-C12环烷基、R10、—OR12或—NR13R14,其中R12、R13和R14表示C1-C25烷基、C5-C12环烷基、C6-C24芳基或包含五到七个环原子的饱和或不饱和杂环基团,其中环由碳原子和从氮、氧和硫中选择的一到三个杂原子组成,其中芳基和杂环基团可以用C1-C8烷基或C1-C8烷氧基取代一到三次,或—NR8R9表示一个五元或六元杂环基团,在其中R8和R9一起表示四亚甲基、五亚甲基、—CH2—CH2—O—CH2—CH2—或—CH2—CH2—NR5—CH2—CH2—,优选为—CH2—CH2—O—CH2—CH2—,n表示0、1、2或3;其中Z表示从单键、可以用C1-C4烷基、C1-C4烷氧基或苯基取代一到三次的C2-C6烷基、苯基或萘基中选择的双基团,以及化合物I的制备方法、其用途以及包含化合物I和/或III的组合物。