JP2007201194A5 - - Google Patents
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- JP2007201194A5 JP2007201194A5 JP2006018156A JP2006018156A JP2007201194A5 JP 2007201194 A5 JP2007201194 A5 JP 2007201194A5 JP 2006018156 A JP2006018156 A JP 2006018156A JP 2006018156 A JP2006018156 A JP 2006018156A JP 2007201194 A5 JP2007201194 A5 JP 2007201194A5
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- 230000005283 ground state Effects 0.000 claims description 32
- 230000007704 transition Effects 0.000 claims description 32
- 150000002894 organic compounds Chemical class 0.000 claims description 28
- 229920000728 polyester Polymers 0.000 claims description 28
- 125000004432 carbon atom Chemical group C* 0.000 claims description 17
- 229920000642 polymer Polymers 0.000 claims description 16
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims description 12
- 229930195733 hydrocarbon Natural products 0.000 claims description 12
- 150000002430 hydrocarbons Chemical class 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 10
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 8
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 230000005525 hole transport Effects 0.000 claims description 6
- 125000003158 alcohol group Chemical group 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical group 0.000 claims description 4
- 125000003107 substituted aryl group Chemical group 0.000 claims description 4
- 238000005401 electroluminescence Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
Description
すなわち本発明は、
＜１＞ 少なくとも一方が透明または半透明である一対の電極間に挾持された、１つまたは複数の有機化合物層より構成される有機電界発光素子において、
前記有機化合物層の少なくとも１層が、下記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上と、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子とを含有し、
前記電荷輸送性ポリエステルが、下記一般式（ＡＩＩ−１）または（ＡＩＩ−２）で示される電荷輸送性ポリエステルであることを特徴とする有機電界発光素子である。
That is, the present invention
<1> In an organic electroluminescent device composed of one or a plurality of organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer comprising a repeating unit containing at least one selected from the structures represented by the following general formulas (AI-1) and (AI-2) as a partial structure. Containing at least a species and a light-emitting polymer that emits light by a transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state ,
The organic electroluminescent device is characterized in that the charge transporting polyester is a charge transporting polyester represented by the following general formula (AII-1) or (AII-2) .
上記一般式（ＡＩ−１）及び（ＡＩ−２）中、Ｒ1は水素原子、炭素数１〜８のアルキル基、アルコキシ基あるいは置換もしくは無置換の芳香族基を表し、Ｔは炭素数１〜６の２価の直鎖状炭化水素または炭素数２〜１０の分枝状炭化水素を表し、ｌ、ｍは０または１を表す。
（一般式（ＡＩＩ−１）及び（ＡＩＩ−２）中、Ａは前記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造を表し、Ｒは水素原子、アルキル基、置換もしくは未置換のアリール基、または、置換もしくは未置換のアラルキル基を表し、Ｙは２価のアルコール残基を表し、Ｚは２価のカルボン酸残基を表し、ＢおよびＢ’は、それぞれ独立に基−Ｏ−（Ｙ−Ｏ） n −Ｒ、または基−Ｏ−（Ｙ−Ｏ） n −ＣＯ−Ｚ−ＣＯ−Ｏ−Ｒ’（ここで、Ｒ、Ｙ、Ｚは上記と同じ意味を有し、Ｒ’はアルキル基、置換もしくは未置換のアリール基、または置換もしくは未置換のアラルキル基を表す。）を表し、ｎは１〜５の整数を表し、ｐは５〜５０００の整数を表す。）
In the general formulas (AI-1) and (AI-2), R 1 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group, or a substituted or unsubstituted aromatic group, and T represents 1 carbon atom. Represents a divalent linear hydrocarbon of ˜6 or a branched hydrocarbon having 2 to 10 carbon atoms, and l and m each represents 0 or 1;
(In the general formulas (AII-1) and (AII-2), A represents the structure represented by the general formulas (AI-1) and (AI-2), and R represents a hydrogen atom, an alkyl group, a substituted or unsubstituted group. A substituted aryl group or a substituted or unsubstituted aralkyl group, Y represents a divalent alcohol residue, Z represents a divalent carboxylic acid residue, and B and B ′ each independently represent a group —O— (Y—O) n —R or a group —O— (Y—O) n —CO—Z—CO—O—R ′ (where R, Y and Z have the same meaning as above). R ′ represents an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group. N represents an integer of 1 to 5, and p represents an integer of 5 to 5000. .)
＜１０＞ 少なくとも一方が透明または半透明である一対の電極間に挾持された、１つまたは複数の有機化合物層より構成される有機電界発光素子において、
前記有機化合物層の少なくとも１層が、下記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上と、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子とを含有し、
前記電荷輸送性ポリエステルが、下記一般式（ＢＩＩ−１）または（ＢＩＩ−２）で示される電荷輸送性ポリエステルであることを特徴とする有機電界発光素子である。
< 10 > In an organic electroluminescent element composed of one or more organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer composed of a repeating unit containing at least one selected from the structures represented by the following general formulas (BI-1) and (BI-2) as a partial structure. Containing at least a species and a light-emitting polymer that emits light by a transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state ,
The organic electroluminescent device is characterized in that the charge transporting polyester is a charge transporting polyester represented by the following general formula (BII-1) or (BII-2) .
一般式（ＢＩ−１）及び（ＢＩ−２）中、Ｒ1は各々独立に水素原子、炭素数１〜８のアルキル基、アルコキシ基あるいは置換もしくは無置換の芳香族基を表し、Ｔは炭素数１〜６の２価の直鎖状炭化水素または炭素数２〜１０の分枝状炭化水素を表し、ｌ、ｍは０または１を表す。
（一般式（ＢＩＩ−１）及び（ＢＩＩ−２）中、Ａは前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造を表し、Ｒは水素原子、アルキル基、置換もしくは未置換のアリール基、または置換もしくは未置換のアラルキル基を表し、Ｙは２価のアルコール残基を表し、Ｚは２価のカルボン酸残基を表し、ＢおよびＢ’は、それぞれ独立に基−Ｏ−（Ｙ−Ｏ） n −Ｒ、または基−Ｏ−（Ｙ−Ｏ） n −ＣＯ−Ｚ−ＣＯ−Ｏ−Ｒ’（ここで、Ｒ、Ｙ、Ｚは上記と同じ意味を有し、Ｒ’はアルキル基、置換もしくは未置換のアリール基、または置換もしくは未置換のアラルキル基を表す。）を表し、ｎは１〜５の整数を表し、ｐは５〜５０００の整数を表す。）
In general formulas (BI-1) and (BI-2), each R 1 independently represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group, or a substituted or unsubstituted aromatic group, and T represents carbon. A divalent linear hydrocarbon having 1 to 6 carbon atoms or a branched hydrocarbon having 2 to 10 carbon atoms is represented, and l and m represent 0 or 1.
(In the general formulas (BII-1) and (BII-2), A represents the structure represented by the general formulas (BI-1) and (BI-2), and R represents a hydrogen atom, an alkyl group, a substituted or unsubstituted group. Represents a substituted aryl group, or a substituted or unsubstituted aralkyl group, Y represents a divalent alcohol residue, Z represents a divalent carboxylic acid residue, and B and B ′ each independently represents a group — O— (Y—O) n —R or a group —O— (Y—O) n —CO—Z—CO—O—R ′ (where R, Y, Z have the same meaning as above). , R ′ represents an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group.), N represents an integer of 1 to 5, and p represents an integer of 5 to 5000. )
＜１１＞ 前記有機化合物層が、少なくとも発光層と、電子輸送層及び／または電子注入層とから構成され、
少なくとも前記発光層が、前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移によりあるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有する＜１０＞に記載の有機電界発光素子である。
< 11 > The organic compound layer is composed of at least a light emitting layer, an electron transport layer and / or an electron injection layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of repeating units containing at least one selected from the structures represented by the general formulas (BI-1) and (BI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light by transition from an excited triplet state of an electron energy level to a ground state or by transition to a ground state via an excited triplet state < 10 >. The organic electroluminescence device according to 10 >.
＜１２＞ 前記発光層が、電荷輸送性材料を含む＜１１＞に記載の有機電界発光素子である。 < 12 > The organic electroluminescent element according to < 11 >, wherein the light emitting layer contains a charge transporting material.
＜１３＞ 前記有機化合物層が、少なくとも正孔輸送層及び／または正孔注入層と、発光層と、電子輸送層及び／または電子注入層とから構成され、
少なくとも前記発光層が、前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移によりあるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有する＜１０＞に記載の有機電界発光素子である。
< 13 > The organic compound layer is composed of at least a hole transport layer and / or a hole injection layer, a light emitting layer, an electron transport layer and / or an electron injection layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of repeating units containing at least one selected from the structures represented by the general formulas (BI-1) and (BI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light by transition from an excited triplet state of an electron energy level to a ground state or by transition to a ground state via an excited triplet state < 10 >. The organic electroluminescence device according to 10 >.
＜１４＞ 前記発光層が、電荷輸送性材料を含む＜１３＞に記載の有機電界発光素子である。 < 14 > The organic electroluminescent element according to < 13 >, wherein the light emitting layer contains a charge transporting material.
＜１５＞ 前記有機化合物層が、少なくとも正孔輸送層及び／または正孔注入層と、発光層とから構成され、
少なくとも前記発光層が、前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有する＜１０＞に記載の有機電界発光素子である。
< 15 > The organic compound layer is composed of at least a hole transport layer and / or a hole injection layer, and a light emitting layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of repeating units containing at least one selected from the structures represented by the general formulas (BI-1) and (BI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light upon transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state. < 10 > An organic electroluminescence device according to < 10 >.
＜１６＞ 前記発光層が、電荷輸送性材料を含むことを特徴とする＜１５＞に記載の有機電界発光素子である。 < 16 > The organic electroluminescent element as described in < 15 >, wherein the light emitting layer contains a charge transporting material.
＜１７＞ 前記有機化合物層が、少なくとも電荷輸送能を有する発光層から構成され、該発光層が、前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、さらに、前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移によりあるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を含有する＜１０＞に記載の有機電界発光素子である。 < 17 > The organic compound layer includes at least a light emitting layer having charge transporting ability, and the light emitting layer is at least one selected from the structures represented by the general formulas (BI-1) and (BI-2). Containing at least one charge transporting polyester comprising a repeating unit containing a seed as a partial structure, and the light-emitting layer may exhibit an excited triplet state by a transition from an excited triplet state of an electron energy level to a ground state. < 10 > The organic electroluminescence device according to < 10 >, which contains a light-emitting polymer that emits light by transition to a ground state via a via.
＜１８＞ 前記発光層が、電荷輸送性材料を含む＜１７＞に記載の有機電界発光素子である。 < 18 > The organic electroluminescent element according to < 17 >, wherein the light emitting layer contains a charge transporting material.
＜１９＞ 少なくとも一方が透明または半透明である一対の電極間に挾持された、１つまたは複数の有機化合物層より構成される有機電界発光素子において、
前記有機化合物層の少なくとも１層が、下記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有する有機電界発光素子である。
< 19 > In an organic electroluminescent element composed of one or more organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer comprising a repeating unit containing at least one selected from the structures represented by the following general formulas (AI-1) and (AI-2) as a partial structure. It is an organic electroluminescent element containing at least seeds.
＜２０＞ 少なくとも一方が透明または半透明である一対の電極間に挾持された、１つまたは複数の有機化合物層より構成される有機電界発光素子において、
前記有機化合物層の少なくとも１層が、下記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有する有機電界発光素子である。
< 20 > In an organic electroluminescent element composed of one or more organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer composed of a repeating unit containing at least one selected from the structures represented by the following general formulas (BI-1) and (BI-2) as a partial structure. It is an organic electroluminescent element containing at least seeds.
Claims (20)
前記有機化合物層の少なくとも１層が、下記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上と、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子とを含有し、
前記電荷輸送性ポリエステルが、下記一般式（ＡＩＩ−１）または（ＡＩＩ−２）で示される電荷輸送性ポリエステルであることを特徴とする有機電界発光素子。
（一般式（ＡＩ−１）及び（ＡＩ−２）中、Ｒ1は各々独立に水素原子、炭素数１〜８のアルキル基、アルコキシ基あるいは置換もしくは無置換の芳香族基を表し、Ｔは炭素数１〜６の２価の直鎖状炭化水素または炭素数２〜１０の分枝状炭化水素を表し、ｌ、ｍは０または１を表す。）
（一般式（ＡＩＩ−１）及び（ＡＩＩ−２）中、Ａは前記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造を表し、Ｒは水素原子、アルキル基、置換もしくは未置換のアリール基、または、置換もしくは未置換のアラルキル基を表し、Ｙは２価のアルコール残基を表し、Ｚは２価のカルボン酸残基を表し、ＢおよびＢ’は、それぞれ独立に基−Ｏ−（Ｙ−Ｏ） n −Ｒ、または基−Ｏ−（Ｙ−Ｏ） n −ＣＯ−Ｚ−ＣＯ−Ｏ−Ｒ’（ここで、Ｒ、Ｙ、Ｚは上記と同じ意味を有し、Ｒ’はアルキル基、置換もしくは未置換のアリール基、または置換もしくは未置換のアラルキル基を表す。）を表し、ｎは１〜５の整数を表し、ｐは５〜５０００の整数を表す。） In an organic electroluminescent device composed of one or more organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer comprising a repeating unit containing at least one selected from the structures represented by the following general formulas (AI-1) and (AI-2) as a partial structure. Containing at least a species and a light-emitting polymer that emits light by a transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state ,
The organic electroluminescent device, wherein the charge transporting polyester is a charge transporting polyester represented by the following general formula (AII-1) or (AII-2) .
(In the general formulas (AI-1) and (AI-2), each R 1 independently represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group, or a substituted or unsubstituted aromatic group. A divalent linear hydrocarbon having 1 to 6 carbon atoms or a branched hydrocarbon having 2 to 10 carbon atoms is represented, and l and m represent 0 or 1.)
(In the general formulas (AII-1) and (AII-2), A represents the structure represented by the general formulas (AI-1) and (AI-2), and R represents a hydrogen atom, an alkyl group, a substituted or unsubstituted group. A substituted aryl group or a substituted or unsubstituted aralkyl group, Y represents a divalent alcohol residue, Z represents a divalent carboxylic acid residue, and B and B ′ each independently represent a group —O— (Y—O) n —R or a group —O— (Y—O) n —CO—Z—CO—O—R ′ (where R, Y and Z have the same meaning as above). R ′ represents an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group. N represents an integer of 1 to 5, and p represents an integer of 5 to 5000. .)
少なくとも前記発光層が、前記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移によりあるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有することを特徴とする請求項１に記載の有機電界発光素子。 The organic compound layer is composed of at least a light emitting layer, an electron transport layer and / or an electron injection layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of a repeating unit containing at least one selected from the structures represented by the general formulas (AI-1) and (AI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light by transition from an excited triplet state to a ground state of an electron energy level or by transition to a ground state via an excited triplet state. The organic electroluminescent element according to claim 1.
少なくとも前記発光層が、前記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有することを特徴とする請求項１に記載の有機電界発光素子。 The organic compound layer is composed of at least a hole transport layer and / or a hole injection layer, a light emitting layer, an electron transport layer and / or an electron injection layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of a repeating unit containing at least one selected from the structures represented by the general formulas (AI-1) and (AI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light upon transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state. The organic electroluminescent element according to claim 1.
少なくとも前記発光層が、前記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有することを特徴とする請求項１に記載の有機電界発光素子。 The organic compound layer is composed of at least a hole transport layer and / or a hole injection layer, and a light emitting layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of a repeating unit containing at least one selected from the structures represented by the general formulas (AI-1) and (AI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light upon transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state. The organic electroluminescent element according to claim 1.
前記発光層が、前記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上と、電子エネルギー準位の励起三重項状態から基底状態への遷移によりあるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子とを含有することを特徴とする請求項１に記載の有機電界発光素子。 The organic compound layer is composed of a light emitting layer having at least a charge transporting capability,
The light-emitting layer has at least one charge transporting polyester comprising a repeating unit containing at least one selected from the structures represented by the general formulas (AI-1) and (AI-2) as a partial structure, and an electron 2. A light-emitting polymer that emits light by transition from an excited triplet state of an energy level to a ground state or by transition to a ground state via an excited triplet state. The organic electroluminescent element as described.
前記有機化合物層の少なくとも１層が、下記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上と、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子とを含有し、
前記電荷輸送性ポリエステルが、下記一般式（ＢＩＩ−１）または（ＢＩＩ−２）で示される電荷輸送性ポリエステルであることを特徴とする有機電界発光素子。
（一般式（ＢＩ−１）及び（ＢＩ−２）中、Ｒ 1 は各々独立に水素原子、炭素数１〜８のアルキル基、アルコキシ基あるいは置換もしくは無置換の芳香族基を表し、Ｔは炭素数１〜６の２価の直鎖状炭化水素または炭素数２〜１０の分枝状炭化水素を表し、ｌ、ｍは０または１を表す。）
（一般式（ＢＩＩ−１）及び（ＢＩＩ−２）中、Ａは前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造を表し、Ｒは水素原子、アルキル基、置換もしくは未置換のアリール基、または置換もしくは未置換のアラルキル基を表し、Ｙは２価のアルコール残基を表し、Ｚは２価のカルボン酸残基を表し、ＢおよびＢ’は、それぞれ独立に基−Ｏ−（Ｙ−Ｏ） n −Ｒ、または基−Ｏ−（Ｙ−Ｏ） n −ＣＯ−Ｚ−ＣＯ−Ｏ−Ｒ’（ここで、Ｒ、Ｙ、Ｚは上記と同じ意味を有し、Ｒ’はアルキル基、置換もしくは未置換のアリール基、または置換もしくは未置換のアラルキル基を表す。）を表し、ｎは１〜５の整数を表し、ｐは５〜５０００の整数を表す。） In an organic electroluminescent device composed of one or more organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer composed of a repeating unit containing at least one selected from the structures represented by the following general formulas (BI-1) and (BI-2) as a partial structure. Containing at least a species and a light-emitting polymer that emits light by a transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state,
The organic electroluminescent device, wherein the charge transporting polyester is a charge transporting polyester represented by the following general formula (BII-1) or (BII-2) .
(In the general formulas (BI-1) and (BI-2), each R 1 independently represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group, or a substituted or unsubstituted aromatic group, A divalent linear hydrocarbon having 1 to 6 carbon atoms or a branched hydrocarbon having 2 to 10 carbon atoms is represented, and l and m represent 0 or 1.)
(In the general formulas (BII-1) and (BII-2), A represents the structure represented by the general formulas (BI-1) and (BI-2), and R represents a hydrogen atom, an alkyl group, a substituted or unsubstituted group. Represents a substituted aryl group, or a substituted or unsubstituted aralkyl group, Y represents a divalent alcohol residue, Z represents a divalent carboxylic acid residue, and B and B ′ each independently represents a group — O— (Y—O) n —R or a group —O— (Y—O) n —CO—Z—CO—O—R ′ (where R, Y, Z have the same meaning as above). , R ′ represents an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group.), N represents an integer of 1 to 5, and p represents an integer of 5 to 5000. )
少なくとも前記発光層が、前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移によりあるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有することを特徴とする請求項１０に記載の有機電界発光素子。 The organic compound layer is composed of at least a light emitting layer, an electron transport layer and / or an electron injection layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of repeating units containing at least one selected from the structures represented by the general formulas (BI-1) and (BI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light by transition from an excited triplet state to a ground state of an electron energy level or by transition to a ground state via an excited triplet state. The organic electroluminescent element according to claim 10 .
少なくとも前記発光層が、前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移によりあるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有することを特徴とする請求項１０に記載の有機電界発光素子。 The organic compound layer is composed of at least a hole transport layer and / or a hole injection layer, a light emitting layer, an electron transport layer and / or an electron injection layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of repeating units containing at least one selected from the structures represented by the general formulas (BI-1) and (BI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light by transition from an excited triplet state to a ground state of an electron energy level or by transition to a ground state via an excited triplet state. The organic electroluminescent element according to claim 10 .
少なくとも前記発光層が、前記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有し、且つ、
前記発光層が、電子エネルギー準位の励起三重項状態から基底状態への遷移により、あるいは励起三重項状態を経由しての基底状態への遷移により発光する発光性高分子を１種以上含有することを特徴とする請求項１０に記載の有機電界発光素子。 The organic compound layer is composed of at least a hole transport layer and / or a hole injection layer, and a light emitting layer,
At least the light emitting layer contains one or more charge transporting polyesters composed of repeating units containing at least one selected from the structures represented by the general formulas (BI-1) and (BI-2) as a partial structure. ,and,
The light-emitting layer contains one or more light-emitting polymers that emit light upon transition from an excited triplet state to a ground state of an electron energy level or a transition to a ground state via an excited triplet state. The organic electroluminescent element according to claim 10 .
前記有機化合物層の少なくとも１層が、下記一般式（ＡＩ−１）及び（ＡＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有することを特徴とする有機電界発光素子。
（一般式（ＡＩ−１）及び（ＡＩ−２）中、Ｒ 1 は各々独立に水素原子、炭素数１〜８のアルキル基、アルコキシ基あるいは置換もしくは無置換の芳香族基を表し、Ｔは炭素数１〜６の２価の直鎖状炭化水素または炭素数２〜１０の分枝状炭化水素を表し、ｌ、ｍは０または１を表す。） In an organic electroluminescent device composed of one or more organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer comprising a repeating unit containing at least one selected from the structures represented by the following general formulas (AI-1) and (AI-2) as a partial structure. Organic electroluminescent element characterized by containing more than seed | species .
(In the general formulas (AI-1) and (AI-2), each R 1 independently represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group, or a substituted or unsubstituted aromatic group. A divalent linear hydrocarbon having 1 to 6 carbon atoms or a branched hydrocarbon having 2 to 10 carbon atoms is represented, and l and m represent 0 or 1.)
前記有機化合物層の少なくとも１層が、下記一般式（ＢＩ−１）及び（ＢＩ−２）で示される構造から選択された少なくとも１種を部分構造として含む繰り返し単位よりなる電荷輸送性ポリエステルを１種以上含有することを特徴とする有機電界発光素子。
（一般式（ＢＩ−１）及び（ＢＩ−２）中、Ｒ 1 は各々独立に水素原子、炭素数１〜８のアルキル基、アルコキシ基あるいは置換もしくは無置換の芳香族基を表し、Ｔは炭素数１〜６の２価の直鎖状炭化水素または炭素数２〜１０の分枝状炭化水素を表し、ｌ、ｍは０または１を表す。） In an organic electroluminescent device composed of one or more organic compound layers sandwiched between a pair of electrodes, at least one of which is transparent or translucent,
1 is a charge transporting polyester comprising at least one organic compound layer composed of a repeating unit containing at least one selected from the structures represented by the following general formulas (BI-1) and (BI-2) as a partial structure. Organic electroluminescent element characterized by containing more than seed | species .
(In the general formulas (BI-1) and (BI-2), each R 1 independently represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkoxy group, or a substituted or unsubstituted aromatic group, A divalent linear hydrocarbon having 1 to 6 carbon atoms or a branched hydrocarbon having 2 to 10 carbon atoms is represented, and l and m represent 0 or 1.)
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