JP5353245B2 - ビス(3−アリールアミノ)ジフェニル金属化合物及び当該金属化合物を含有する有機エレクトロルミネッセンス素子 - Google Patents
ビス(3−アリールアミノ)ジフェニル金属化合物及び当該金属化合物を含有する有機エレクトロルミネッセンス素子 Download PDFInfo
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- JP5353245B2 JP5353245B2 JP2008555082A JP2008555082A JP5353245B2 JP 5353245 B2 JP5353245 B2 JP 5353245B2 JP 2008555082 A JP2008555082 A JP 2008555082A JP 2008555082 A JP2008555082 A JP 2008555082A JP 5353245 B2 JP5353245 B2 JP 5353245B2
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- metal compound
- light emitting
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- -1 diphenyl metal compound Chemical class 0.000 title claims abstract description 44
- 239000004305 biphenyl Substances 0.000 title claims abstract description 13
- 235000010290 biphenyl Nutrition 0.000 title claims abstract description 10
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 238000005401 electroluminescence Methods 0.000 title claims description 22
- 150000002736 metal compounds Chemical class 0.000 title description 2
- 125000003118 aryl group Chemical group 0.000 claims abstract description 14
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 8
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 8
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 8
- 125000004104 aryloxy group Chemical group 0.000 claims abstract description 8
- 125000003710 aryl alkyl group Chemical group 0.000 claims abstract description 7
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 7
- 125000005843 halogen group Chemical group 0.000 claims abstract description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 150000002894 organic compounds Chemical class 0.000 claims description 5
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
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- 125000004429 atom Chemical group 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 27
- 125000002947 alkylene group Chemical group 0.000 abstract description 6
- 125000001072 heteroaryl group Chemical group 0.000 abstract description 4
- 229910052710 silicon Inorganic materials 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052732 germanium Inorganic materials 0.000 abstract description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical group [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 69
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- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 125000001424 substituent group Chemical group 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 230000005525 hole transport Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
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- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
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- HDIBDCTZFLWGBS-UHFFFAOYSA-N bis(3-carbazol-9-ylphenyl)-diphenylgermane Chemical compound C1=CC=C(C=C1)[Ge](C1=CC=CC=C1)(C1=CC=CC(=C1)N1C2=C(C=CC=C2)C2=C1C=CC=C2)C1=CC=CC(=C1)N1C2=C(C=CC=C2)C2=C1C=CC=C2 HDIBDCTZFLWGBS-UHFFFAOYSA-N 0.000 description 6
- LYFDLJRYTIKHEE-UHFFFAOYSA-N bis(3-carbazol-9-ylphenyl)-diphenylsilane Chemical compound C1=CC=CC=C1[Si](C=1C=C(C=CC=1)N1C2=CC=CC=C2C2=CC=CC=C21)(C=1C=C(C=CC=1)N1C2=CC=CC=C2C2=CC=CC=C21)C1=CC=CC=C1 LYFDLJRYTIKHEE-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- ZOKIJILZFXPFTO-UHFFFAOYSA-N 4-methyl-n-[4-[1-[4-(4-methyl-n-(4-methylphenyl)anilino)phenyl]cyclohexyl]phenyl]-n-(4-methylphenyl)aniline Chemical compound C1=CC(C)=CC=C1N(C=1C=CC(=CC=1)C1(CCCCC1)C=1C=CC(=CC=1)N(C=1C=CC(C)=CC=1)C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 ZOKIJILZFXPFTO-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
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- ZVFQEOPUXVPSLB-UHFFFAOYSA-N 3-(4-tert-butylphenyl)-4-phenyl-5-(4-phenylphenyl)-1,2,4-triazole Chemical compound C1=CC(C(C)(C)C)=CC=C1C(N1C=2C=CC=CC=2)=NN=C1C1=CC=C(C=2C=CC=CC=2)C=C1 ZVFQEOPUXVPSLB-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
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- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
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- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- ZKGHGKNHPPZALY-UHFFFAOYSA-N 9-(3-bromophenyl)carbazole Chemical compound BrC1=CC=CC(N2C3=CC=CC=C3C3=CC=CC=C32)=C1 ZKGHGKNHPPZALY-UHFFFAOYSA-N 0.000 description 2
- MZYDBGLUVPLRKR-UHFFFAOYSA-N 9-(3-carbazol-9-ylphenyl)carbazole Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC(N2C3=CC=CC=C3C3=CC=CC=C32)=CC=C1 MZYDBGLUVPLRKR-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
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- MASVCBBIUQRUKL-UHFFFAOYSA-N POPOP Chemical compound C=1N=C(C=2C=CC(=CC=2)C=2OC(=CN=2)C=2C=CC=CC=2)OC=1C1=CC=CC=C1 MASVCBBIUQRUKL-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
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- OEERIBPGRSLGEK-UHFFFAOYSA-N carbon dioxide;methanol Chemical compound OC.O=C=O OEERIBPGRSLGEK-UHFFFAOYSA-N 0.000 description 2
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- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
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- MZWDAEVXPZRJTQ-WUXMJOGZSA-N 4-[(e)-(4-fluorophenyl)methylideneamino]-3-methyl-1h-1,2,4-triazole-5-thione Chemical compound CC1=NNC(=S)N1\N=C\C1=CC=C(F)C=C1 MZWDAEVXPZRJTQ-WUXMJOGZSA-N 0.000 description 1
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- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- HTPBWAPZAJWXKY-UHFFFAOYSA-L zinc;quinolin-8-olate Chemical compound [Zn+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 HTPBWAPZAJWXKY-UHFFFAOYSA-L 0.000 description 1
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- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
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Description
「2006アドバンストマテリアルR&D Report」、富士キメラ総研、2006年 時任静士著、「有機ELディスプレイ」、オーム社、2004年
で示されるビス(3−アリールアミノ)ジフェニル金属化合物によって解決される。
前記式(1)で表わされる化合物と発光材料もしくは他のホスト材料の共蒸着は、それぞれに蒸着源を用い、且つ温度をそれぞれ独立に制御することによって行うことができる。
参考例1(ビス[3−(N−カルバゾリル)フェニル]ジフェニルシラン)の合成
25mlのシュレンク管内をアルゴンガスにて置換し、N−(3−ブロモフェニル)カルバゾール0.68g(2.1mmol)とTHF(8ml)を加えてドライアイス−メタノールバスにて−78℃に冷却する。t−ブチルリチウム/n−ペンタン溶液 2.59ml(1.7M,4.4mmol)を滴下し、同温度で30分攪拌した後、ジフェニルジクロロシラン 210μl(1.0mmol)を加える。同温度でさらに10分攪拌した後、0℃に昇温し、同温度で4時間攪拌した。反応混合物を水100mlに加え、塩化メチレン(30ml×1、10ml×2)で抽出し、エバポレーターで溶媒を減圧留去した。反応粗生成物をシリカゲルカラムクロマトグラフィー(展開溶媒:ヘキサン/酢酸エチル=100/0〜20/1)によって精製することで、目的物を白色固体として0.53g得た。(収率80%)
FAB−MS(M/e):666(M+)
EA:観測値 C:86.34,H:5.21,N:4.18
理論値 C:86.45,H:5.14,N:4.20
25mlのシュレンク管内をアルゴンガスにて置換し、N−(3−ブロモフェニル)カルバゾール0.68g(2.1mmol)とTHF(8ml)を加えてドライアイス−メタノールバスにて−78℃に冷却する。t−ブチルリチウム/n−ペンタン溶液 2.59ml(1.7M,4.4mmol)を滴下し、同温度で30分攪拌した後、ジフェニルジクロロゲルマン 222μl(1.0mmol)を加える。同温度でさらに10分攪拌した後、0℃に昇温し、同温度で2時間攪拌した。反応混合物を水100mlに加え、塩化メチレン(30ml×1、10ml×2)で抽出し、エバポレーターで溶媒を減圧留去した。反応粗生成物をシリカゲルカラムクロマトグラフィー(展開溶媒:ヘキサン/酢酸エチル=100/0〜20/1)によって精製することで、目的物を白色固体として0.57g得た。(収率81%)
FAB−MS(M/e):712(M+)
EA:観測値 C:80.84,H:4.87,N:3.85
理論値 C:81.04,H:4.82,N:3.94
イーエッチシー製インジウム錫酸化物(以下ITOと略す)被膜付きガラスを透明電極基板として用い、アルバック機工製真空蒸着装置を使用して、同基板上に2×10−3Pa以下の真空度で、(1,1−ビス[4−(ジ−4−トリルアミノ)フェニル]シクロヘキサン(以下TAPCと略す)からなるホール輸送層3を膜厚40nm、ビス[3−(N−カルバゾリル)フェニル]ジフェニルシラン(2)中に既知の青色リン光発光材料であるビス[(4,6−ジフルオロフェニル)ピリジナト−N,C2](ピコリナト)イリジウム(以下FIrpicと略す)を5.3重量%含む発光層4を膜厚30nm、3−(4−ビフェニルイル)−4−フェニル−5−tert−ブチルフェニル−1,2,4−トリアゾール(昇華精製品・以下TAZと略す)からなるホールブロック層5を30nm、フッ化リチウム(以下LiFと略す)からなる電子輸送層6を0.5nm、電極7としてアルミニウム(Al)を100nm、順次真空蒸着させてエレクトロルミネッセンス素子を作製した。
なお、真空蒸着は、基板に対向して置かれた坩堝に原料を仕込み、坩堝ごと原料を加熱することによって行った。
前記素子のITO電極2を正極、Al電極7を負極として通電し、電極間電圧を上げていくと、+6V付近から素子は肉眼ではっきりと分かる程度の青色発光を開始し、+21Vにおいて1880cd/m2で発光した。この素子の発光に係る電流の効率を以下の式で求めた。
イーエッチシー製ITO被膜付きガラスを透明電極基板として用い、アルバック機工製真空蒸着装置を使用して、同基板上に2×10−3Pa以上の真空度で、TAPCからなるホール輸送層3を膜厚40nm、ビス[3−(N−カルバゾリル)フェニル]ジフェニルゲルマン(3)中にFIrpicを4.9重量%含む発光層4を膜厚30nm、TAZからなるホールブロック層5を30nm、LiFからなる電子輸送層6を0.5nm、電極7としてアルミニウム(Al)を100nm、順次真空蒸着させてエレクトロルミネッセンス素子を作製した。
イーエッチシー製ITO被膜付きガラスを透明電極基板として用い、アルバック機工製真空蒸着装置を使用して、同基板上に2×10−3Pa以下の真空度で、TAPCからなるホール輸送層3を膜厚40nm、既存発光層材料である1,3−ビス(N−カルバゾリル)ベンゼン(以下mCPと略す)中にFIrpicを5.4重量%含む発光層4を膜厚31nm、TAZからなるホールブロック層5を30nm、LiFからなる電子輸送層6を0.5nm、電極7としてアルミニウム(Al)を100nm、順次真空蒸着させてエレクトロルミネッセンス素子を作製した。
この素子の発光色を、プレサイスゲージ製有機EL評価装置を用いて評価した。電極間電圧+21Vにおいて得られたスペクトルより、JIS Z8701によって求めた色度座標の値はx=0.17,y=0.34であった。
Claims (4)
- ビス(3−アリールアミノ)ジフェニル金属化合物が、ビス[3−(N−カルバゾリル)フェニル]ジフェニルゲルマンである、請求項1記載のビス(3−アリールアミノ)ジフェニル金属化合物。
- 一対の電極間に発光層もしくは発光層を含む複数の有機化合物薄層を形成した有機エレクトロルミネッセンス素子であって、少なくとも発光層に請求項1又は2記載のビス(3−アリールアミノ)ジフェニル金属化合物を含有することを特徴とする有機エレクトロルミネッセンス素子。
- 発光層が、中心金属がイリジウム、白金、金、オスミウム又はルテニウムであるリン光性錯体色素を含有することを特徴とする、請求項3記載の有機エレクトロルミネッセンス素子。
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PCT/JP2008/050856 WO2008090907A1 (ja) | 2007-01-24 | 2008-01-23 | ビス(3-アリールアミノ)ジフェニル金属化合物及び当該金属化合物を含有する有機エレクトロルミネッセンス素子 |
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JP2001279237A (ja) * | 2000-03-31 | 2001-10-10 | Fuji Photo Film Co Ltd | 有機発光素子材料、新規アミン化合物、新規ヘテロ環化合物、およびそれらを用いた有機発光素子 |
JP2005097301A (ja) * | 2003-09-22 | 2005-04-14 | Samsung Sdi Co Ltd | 4,4’−ビス(カルバゾール−9−イル)−ビフェニル系シリコン化合物及びそれを利用した有機電界発光素子 |
JP2005183303A (ja) * | 2003-12-22 | 2005-07-07 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
JP2005220088A (ja) * | 2004-02-06 | 2005-08-18 | Chemiprokasei Kaisha Ltd | ケイ素含有多価アミン、それよりなるホール輸送材料およびそれを用いた有機el素子 |
JP2005306864A (ja) * | 2004-03-26 | 2005-11-04 | Fuji Photo Film Co Ltd | 有機電界発光素子およびケイ素化合物 |
US20060115674A1 (en) * | 2004-11-26 | 2006-06-01 | Au Optronics Corp. | Organic electroluminescent device |
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JP2001279237A (ja) * | 2000-03-31 | 2001-10-10 | Fuji Photo Film Co Ltd | 有機発光素子材料、新規アミン化合物、新規ヘテロ環化合物、およびそれらを用いた有機発光素子 |
JP2005097301A (ja) * | 2003-09-22 | 2005-04-14 | Samsung Sdi Co Ltd | 4,4’−ビス(カルバゾール−9−イル)−ビフェニル系シリコン化合物及びそれを利用した有機電界発光素子 |
JP2005183303A (ja) * | 2003-12-22 | 2005-07-07 | Fuji Photo Film Co Ltd | 有機電界発光素子 |
JP2005220088A (ja) * | 2004-02-06 | 2005-08-18 | Chemiprokasei Kaisha Ltd | ケイ素含有多価アミン、それよりなるホール輸送材料およびそれを用いた有機el素子 |
JP2005306864A (ja) * | 2004-03-26 | 2005-11-04 | Fuji Photo Film Co Ltd | 有機電界発光素子およびケイ素化合物 |
US20060115674A1 (en) * | 2004-11-26 | 2006-06-01 | Au Optronics Corp. | Organic electroluminescent device |
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