JP2017520904A - 多成分ホスト材料及びそれを含む有機電界発光デバイス - Google Patents
多成分ホスト材料及びそれを含む有機電界発光デバイス Download PDFInfo
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- JP2017520904A JP2017520904A JP2016564953A JP2016564953A JP2017520904A JP 2017520904 A JP2017520904 A JP 2017520904A JP 2016564953 A JP2016564953 A JP 2016564953A JP 2016564953 A JP2016564953 A JP 2016564953A JP 2017520904 A JP2017520904 A JP 2017520904A
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Abstract
Description
Ar1は、置換もしくは非置換の(C6−C30)アリール基を表し、
L1及びL2は、それぞれ独立して、単結合、または置換もしくは非置換の(C6−C30)アリーレン基を表し、置換アリーレン基の置換基(複数可)は、独立して、水素、重水素、ハロゲン、シアノ基、置換もしくは非置換の(C1−C30)アルキル基、置換もしくは非置換の(C2−C30)アルケニル基、置換もしくは非置換の(C2−C30)アルキニル基、置換もしくは非置換の(C3−C30)シクロアルキル基、置換もしくは非置換の(C6−C60)アリール基、置換もしくは非置換の3〜30員ヘテロアリール基、置換もしくは非置換のトリ(C1−C30)アルキルシリル基、置換もしくは非置換のトリ(C6−C30)アリールシリル基、置換もしくは非置換のジ(C1−C30)アルキル(C6−C30)アリールシリル基、及び置換もしくは非置換のモノもしくはジ(C6−C30)アリールアミノ基からなる群から選択されるか、あるいは、隣接する置換基間に連結して、窒素、酸素、及び硫黄から選択される少なくとも1個のヘテロ原子で炭素原子(複数可)の環が置換され得る、置換もしくは非置換の、単環式もしくは多環式の、(C3−C30)脂環式環または芳香族環を形成し、
R1〜R16、R21、及びR25〜R32は、それぞれ独立して、水素、重水素、ハロゲン、シアノ基、置換もしくは非置換の(C1−C30)アルキル基、置換もしくは非置換の(C2−C30)アルケニル基、置換もしくは非置換の(C2−C30)アルキニル基、置換もしくは非置換の(C3−C30)シクロアルキル基、置換もしくは非置換の(C6−C60)アリール基、置換もしくは非置換の3〜30員ヘテロアリール基、置換もしくは非置換のトリ(C1−C30)アルキルシリル基、置換もしくは非置換のトリ(C6−C30)アリールシリル基、置換もしくは非置換のジ(C1−C30)アルキル(C6−C30)アリールシリル基、または置換もしくは非置換のモノもしくはジ(C6−C30)アリールアミノ基を表すか、あるいは、隣接する置換基間に連結して、窒素、酸素、及び硫黄から選択される少なくとも1個のヘテロ原子で炭素原子(複数可)の環が置換され得る、置換もしくは非置換の、単環式もしくは多環式の、(C3−C30)脂環式環または芳香族環を形成し、
R5〜R8のうちの1つは、単結合を介してR9〜R12のうちの1つに連結し、
Ar2は、置換もしくは非置換の窒素含有5〜30員ヘテロアリール基を表し、
mは、0、1、2、3、または4を表し、
ヘテロアリール基は、B、N、O、S、Si、及びPから選択される少なくとも1個のヘテロ原子を含有し、
ヘテロアリール基は、(C6−C20)アリール基、トリ(C6−C12)アリールシリル基、S−もしくはO−含有5〜15員ヘテロアリール基、(C1−C6)アルキル基で置換された(C6−C15)アリール基、またはシアノ基で置換された(C6−C15)アリール基で置換され得る、ピロリル、イミダゾリル、ピラゾリル、トリアジニル、テトラジニル、トリアゾリル、テトラゾリル、ピリジル、ピラジニル、ピリミジニル、ピリダジニルなどの単環系ヘテロアリール基か、またはベンゾイミダゾリル、イソインドリル、インドリル、インダゾリル、ベンゾチアジアゾリル、キノリル、イソキノリル、シンノリニル、キナゾリニル、キノキサリニル、カルバゾリル、ナフチリジニル、フェナントリジニルなどの縮合環系ヘテロアリール基である。
Ar1、L1、R1〜R16、R21、及びmは、請求項1に定義されるとおりである。
Lは、以下の構造から選択され:
R101〜R109及びR111〜R123は、それぞれ独立して、水素、重水素、ハロゲン、非置換もしくはハロゲン(複数可)で置換された(C1−C30)アルキル基、置換もしくは非置換の(C3−C30)シクロアルキル基、シアノ基、置換もしくは非置換の(C1−C30)アルコキシ基、または置換もしくは非置換の(C6−C30)アリール基を表し、R120〜R123は、隣接する置換基(複数可)に連結して、置換もしくは非置換の縮合環、例えば、キノリンを形成してもよく、
R124〜R127は、それぞれ独立して、水素、重水素、ハロゲン、置換もしくは非置換の(C1−C30)アルキル基、または置換もしくは非置換の(C6−C30)アリール基を表し、R124〜R127がアリール基であるとき、それらは隣接する置換基(複数可)と連結して、置換もしくは非置換の、単環式もしくは多環式の、(C3−C30)脂環式環、芳香族環、または芳香族複素環、例えばフルオレン、ジベンゾチオフェン、またはジベンゾフランを形成してもよく、
R201〜R211は、それぞれ独立して、水素、重水素、ハロゲン、非置換もしくはハロゲン(複数可)で置換された(C1−C30)アルキル基、置換もしくは非置換の(C3−C30)シクロアルキル基、または置換もしくは非置換の(C6−C30)アリール基を表し、R208〜R211は、隣接する置換基(複数可)に連結して、置換もしくは非置換の、単環式もしくは多環式の、(C3−C30)脂環式環、芳香族環、または芳香族複素環、例えばフルオレン、ジベンゾチオフェン、またはジベンゾフランを形成してもよく、
f及びgは、それぞれ独立して、1〜3の整数を表し、fまたはgが2以上の整数である場合、R100のそれぞれは同じかまたは異なってもよく、
nは、1〜3の整数を表す。
Claims (6)
- 陽極と陰極との間に少なくとも1つの発光層を備える有機電界発光デバイスであって、前記発光層は、ホスト及びリン光性ドーパントを含み、前記ホストは、多成分ホスト化合物からなり、前記多成分ホスト化合物のうち少なくとも第1のホスト化合物は、ピリジンを含有するビカルバゾール誘導体である以下の式1により表され、第2のホスト化合物は、窒素含有ヘテロアリール基を含むカルバゾール誘導体である以下の式2により表され、
Ar1は、置換もしくは非置換の(C6−C30)アリール基を表し、
L1及びL2は、それぞれ独立して、単結合、または置換もしくは非置換の(C6−C30)アリーレン基を表し、前記置換アリーレン基の置換基(複数可)は、独立して、水素、重水素、ハロゲン、シアノ基、置換もしくは非置換の(C1−C30)アルキル基、置換もしくは非置換の(C2−C30)アルケニル基、置換もしくは非置換の(C2−C30)アルキニル基、置換もしくは非置換の(C3−C30)シクロアルキル基、置換もしくは非置換の(C6−C60)アリール基、置換もしくは非置換の3〜30員ヘテロアリール基、置換もしくは非置換のトリ(C1−C30)アルキルシリル基、置換もしくは非置換のトリ(C6−C30)アリールシリル基、置換もしくは非置換のジ(C1−C30)アルキル(C6−C30)アリールシリル基、及び置換もしくは非置換のモノもしくはジ(C6−C30)アリールアミノ基からなる群から選択されるか、あるいは、隣接する置換基間に連結して、窒素、酸素、及び硫黄から選択される少なくとも1個のヘテロ原子で炭素原子(複数可)の環が置換され得る、置換もしくは非置換の、単環式もしくは多環式の、(C3−C30)脂環式環または芳香族環を形成し;
R1〜R16、R21、及びR25〜R32は、それぞれ独立して、水素、重水素、ハロゲン、シアノ基、置換もしくは非置換の(C1−C30)アルキル基、置換もしくは非置換の(C2−C30)アルケニル基、置換もしくは非置換の(C2−C30)アルキニル基、置換もしくは非置換の(C3−C30)シクロアルキル基、置換もしくは非置換の(C6−C60)アリール基、置換もしくは非置換の3〜30員ヘテロアリール基、置換もしくは非置換のトリ(C1−C30)アルキルシリル基、置換もしくは非置換のトリ(C6−C30)アリールシリル基、置換もしくは非置換のジ(C1−C30)アルキル(C6−C30)アリールシリル基、または置換もしくは非置換のモノもしくはジ(C6−C30)アリールアミノ基を表すか、あるいは、隣接する置換基間に連結して、窒素、酸素、及び硫黄から選択される少なくとも1個のヘテロ原子で炭素原子(複数可)の環が置換され得る、置換もしくは非置換の、単環式もしくは多環式の、(C3−C30)脂環式環または芳香族環を形成し;
R5〜R8のうちの1つは、単結合を介してR9〜R12のうちの1つに連結し、
Ar2は、置換もしくは非置換の窒素含有5〜30員ヘテロアリール基を表し、
mは、0、1、2、3、または4を表し;
前記ヘテロアリール基は、B、N、O、S、Si、及びPから選択される少なくとも1個のヘテロ原子を含有し、
前記ヘテロアリール基は、(C6−C20)アリール基、トリ(C6−C12)アリールシリル基、S−もしくはO−含有5〜15員ヘテロアリール基、(C1−C6)アルキル基で置換された(C6−C15)アリール基、またはシアノ基で置換された(C6−C15)アリール基で置換され得る、ピロリル、イミダゾリル、ピラゾリル、トリアジニル、テトラジニル、トリアゾリル、テトラゾリル、ピリジル、ピラジニル、ピリミジニル、及びピリダジニルからなる群から選択される単環系ヘテロアリール基か、またはベンゾイミダゾリル、イソインドリル、インドリル、インダゾリル、ベンゾチアジアゾリル、キノリル、イソキノリル、シンノリニル、キナゾリニル、キノキサリニル、カルバゾリル、ナフチリジニル、及びフェナントリジニルからなる群から選択される縮合環系ヘテロアリール基である、有機電界発光デバイス。 - 式1及び2中のL1及びL2は、それぞれ独立して、単結合、または置換もしくは非置換の(C6−C18)アリーレン基を表す、請求項1に記載の有機電界発光デバイス。
- 式2中のAr2は、トリアジニル、ピリミジニル、キノリル、キナゾリニル、キノキサリニル、またはナフチリジニルである、請求項1に記載の有機電界発光デバイス。
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CN114122300A (zh) | 2022-03-01 |
JP6700196B2 (ja) | 2020-05-27 |
EP3140367B1 (en) | 2020-07-29 |
EP3140367A1 (en) | 2017-03-15 |
KR102395933B1 (ko) | 2022-05-11 |
KR20150127548A (ko) | 2015-11-17 |
CN106232770A (zh) | 2016-12-14 |
US20170062730A1 (en) | 2017-03-02 |
EP3140367A4 (en) | 2018-01-24 |
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