CN113582854A - 新型化合物及其在有机电致发光显示器件中的应用 - Google Patents
新型化合物及其在有机电致发光显示器件中的应用 Download PDFInfo
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- CN113582854A CN113582854A CN202110869509.XA CN202110869509A CN113582854A CN 113582854 A CN113582854 A CN 113582854A CN 202110869509 A CN202110869509 A CN 202110869509A CN 113582854 A CN113582854 A CN 113582854A
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/54—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/57—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton
- C07C211/61—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton with at least one of the condensed ring systems formed by three or more rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D219/00—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
- C07D219/02—Heterocyclic compounds containing acridine or hydrogenated acridine ring systems with only hydrogen, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/91—Dibenzofurans; Hydrogenated dibenzofurans
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/94—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom spiro-condensed with carbocyclic rings or ring systems, e.g. griseofulvins
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/624—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing six or more rings
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- H—ELECTRICITY
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- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/633—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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Abstract
Description
技术领域
本发明属于有机电致发光材料领域,具体涉及新型化合物及其在有机电致发光显示器件中的应用。
背景技术
目前,有机电致发光显示器件(OLED)的空穴传输材料要求对化合物分子具有良好的空穴迁移率和能级、优秀的成膜性和分子稳定性,其中9,9二苯基芴在OLED的空穴传输材料中广泛使用,表现出良好的空穴传输能力,但是可能出现结晶现象从而造成器件寿命降低。
发明内容
本发明的主要目的是提供一种新型环烷基取代的化合物,在9,9二苯基芴的苯基上同时连接一个胺基和环烷基,这一构造使得化合物整体具有极好的成膜性和抗结晶性,同时对分子的稳定性也有较大改善,作为空穴传输层材料能够较大程度地提升器件的使用寿命。
本发明提供一种新型环烷基取代的化合物,具有如化学式1所示的化学结构:
其中,在化学式1中,
X为单键,选自C、O、S或N原子;
Cy为碳原子数为5–30的环烷基;
R(a)和R(b)分别表示具有a和b个独立的R取代基,且a和b均为整数,0<a<5,0<b<5;
R为氢、氘、取代或未取代的碳原子数为1–20的烷基或烷氧基、取代或未取代的成环碳原子数为5–60的芳基、取代或未取代的成环碳原子数为5–60的杂芳基、取代或未取代的碳原子数为1–20的氟烷基或氰基;
Ar1至Ar3各自独立地为取代或未取代的成环碳原子数为5–60的亚芳基、取代或未取代的成环碳原子数为5–60的亚杂芳基。
本发明中新型化合物具有如下优势:极好的成膜性、抗结晶性以及分子稳定性。从位阻大小看,邻位大于间位而间位大于对位,大位阻化合物具有优良的抗结晶能力,能显著地提高材料稳定性和器件寿命,而环烷基相较于烷基具有更高的稳定性,提供较大位阻的同时具有好的热稳定性,另外环烷基与胺基的位置对器件的稳定性影响较大。本发明的新型化合物在9,9二苯基芴的苯基上同时连接一个胺基和环烷基,作为空穴传输层材料具有极好的成膜性和抗结晶性,同时对分子稳定性也有较大改善,能够较大程度地提升器件的使用寿命。
参考以下详细说明更易于理解本发明的上述以及其他特征、方面和优点。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述,本发明的其它特征、目的和优点将会变得更显著:
图1是实施例中有机电致发光显示器件的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例的附图,对本发明实施例的技术方案进行清楚、完整地描述。显然,所描述的实施例是本发明的一部分实施例,而不是全部的实施例。基于所描述的本发明的实施例,本领域普通技术人员在无需创造性劳动的前提下所获得的所有其它实施例,都属于本发明保护的范围。
本发明提供的新型环烷基取代的化合物,具有如化学式1所示的化学结构:
其中,在化学式1中,
X为单键,选自C、O、S或N原子;
Cy为碳原子数为5–30的环烷基;
R(a)和R(b)分别表示具有a和b个独立的R取代基,且a和b均为整数,0<a<5,0<b<5;
R为氢、氘、取代或未取代的碳原子数为1–20的烷基或烷氧基、取代或未取代的成环碳原子数为5–60的芳基、取代或未取代的成环碳原子数为5–60的杂芳基、取代或未取代的碳原子数为1–20的氟烷基或氰基;
Ar1至Ar3各自独立地为取代或未取代的成环碳原子数为5–60的亚芳基、取代或未取代的成环碳原子数为5–60的亚杂芳基。
根据一些实施方式,上述新型化合物具有如化学式1所示的化学结构:
在化学式2中,R(a)和R(b)分别表示具有a和b个独立的R取代基,a和b均为4。
根据一些实施方式,在化学式1或化学式2中,R为氢、氘、取代或未取代的碳原子数为1–20的烷基或烷氧基、取代或未取代的成环碳原子数为5–12的芳基、取代或未取代的成环碳原子数为5–12的杂芳基、取代或未取代的碳原子数为1–10的氟烷基或氰基;
Cy为碳原子数为5–15的环烷基;
Ar1至Ar3各自独立地为取代或未取代的成环碳原子数为5–12的亚芳基、取代或未取代的成环碳原子数为5–12的亚杂芳基。
根据一些实施方式,在化学式1或化学式2中,Cy与取代胺基位于苯环的相邻位置。
化学式1或化学式2中所示的新型化合物中取代基的描述如下,当不限于此。
“取代或未取代的”指选自以下一个或多个取代基取代:氘、卤素基团、腈基、硝基、羟基、羰基、酯基、酰亚胺基、氨基、氧化膦基团、烷氧基、芳氧基、烷基硫基、芳基硫基、烷基磺酰基、芳基磺酰基、甲硅烷基、硼基、烷基、环烷基、烯基、芳基、芳烷基、芳烯基、烷基芳基、烷基胺基、芳烷基胺基、杂芳基胺基、芳基胺基和杂环基,或未取代;或者连接以上取代基中的两个或多个取代基的取代基取代,或未取代,如“连接两个或多个取代基的取代基”包括联苯基,即联苯基可为芳基或者为连接两个苯基的取代基。
“芳基”可为单环芳基或多环芳基,单环芳基包括苯基、联苯基、三联苯基、四联苯基、五联苯基,多环芳基包括萘基、蒽基、菲基、芘基、苝基、芴基;以上对芳基的描述可用于亚芳基,不同之处在于亚芳基为二价。
“杂环基”包括吡啶基、吡咯基、嘧啶基、哒嗪基、呋喃基、噻吩基、咪唑基、吡唑基、唑基、异唑基、噻唑基、异噻唑基、三唑基、二唑基、噻二唑基、二噻唑基、四唑基、吡喃基、噻喃基、吡嗪基、嗪基、噻嗪基、二氧杂环己烯基、三嗪基、四嗪基、喹啉基、异喹啉基、喹啉基、喹唑啉基、喹喔啉基、萘啶基、吖啶基、呫吨基、菲啶基、二氮杂萘基、三氮杂茚基、吲哚基、二氢吲哚基、中氮茚基、酞嗪基、吡啶并嘧啶基、吡啶并吡嗪基、吡嗪并吡嗪基、苯并噻唑基、苯并唑基、苯并咪唑基、苯并噻吩基、苯并呋喃基、二苯并噻吩基、二苯并呋喃基、咔唑基、苯并咔唑基、二苯并咔唑基、吲哚并咔唑基、茚并咔唑基、吩嗪基、咪唑并吡啶基、吩嗪基、菲啶基、菲咯啉基、吩噻嗪基、咪唑并吡啶基、咪唑并菲啶基、苯并咪唑并喹唑啉基、苯并咪唑并菲啶基;以上对杂环基的描述可用于杂芳基,不同之处在于杂芳基为芳香族;以上对杂环基的描述可用于亚杂芳基,不同之处在于亚杂芳基为二价。
根据一些实施方式,化学式1或化学式2中所示新型化合物选自以下任一个化学结构:
以下合成实施例1至5详细描述了上述新型化合物2、38、49、83和162的制备方法,未注明制备方法的原料均为市售商品,其他新型化合物的合成方法与合成实施例1至7类似,通用技术路线如下所示:
合成实施例1
本合成实施例中合成新型化合物2,技术路线如下所示:
化合物2-3的合成:在三口烧瓶,先加入2-1(15g,54.9mmol)和NaOBu-t(10.5g,110mmol),再加入甲苯(100mL),体系氮气置换,反应液升温至70℃,加入Pd2(dba)3(0.15g,1%w/w)和t-Bu3P(1.5g,10%w/w),氮气置换。2-2(13.2g,54mmol)溶于30mL甲苯中缓慢滴加,滴加完毕后,体系加热至110℃反应3小时。反应结束后冷却至50℃,将反应液过硅胶,用100mL甲苯淋洗,所得滤液浓缩去一半体积,加入150mL乙醇,在室温下搅拌1小时,过滤后得到类白色固体2-3(15g,收率63.5%)。
化合物2-5的合成:将化合物2-3(15g,34.2mmol)溶解于40mL无水四氢呋喃,冷却到-78℃并在氮气氛下搅拌,向其中缓慢地添加14.4ml(36mmol的2.5M正丁基锂正己烷溶液,在-78℃和氮气氛下搅拌2小时,向其中滴加溶解于20mL无水四氢呋喃中的化合物2-4(6.1g,34mmol),在室温在氮气氛下搅拌8小时,将反应溶液冷却至0℃,向其中加入70mL1.0M氯化铵水溶液,用二氯甲烷萃取,有机层用无水硫酸镁干燥并过滤,溶液减压浓缩,用二氯甲烷:正己烷为10:90(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥获得固体化合物2-5(14g,70.7%)。
化合物2的合成:化合物2-5(10g,17.1mmol)溶解于100mL苯中,缓慢地向其中加入三氟甲烷磺酸(30g,20mmol),在氮气氛下回流并搅拌24小时,向其中缓慢地加入21mL 1.0M碳酸氢钠水溶液,用甲苯和蒸馏水萃取,无水硫酸镁干燥有机层并浓缩,用二氯甲烷:正己烷为10:90(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥,获得纯化的固体化合物2(5g,收率45%)。
合成实施例2
本合成实施例中合成新型化合物38,技术路线如下所示:
化合物38-3的合成:在三口烧瓶,先加入38-1(15g,54.9mmol),NaOBu-t(10.5g,110mmol),再加入甲苯(100mL),体系氮气置换,反应液升温至70℃,加入Pd2(dba)3(0.15g,1%w/w)和t-Bu3P(1.5g,10%w/w),氮气置换。38-2(19.4g,54mmol)溶于35mL甲苯中缓慢滴加,滴加完毕后,体系加热至110℃反应3小时。反应结束后,冷却至50℃,将反应液过硅胶,用100mL甲苯淋洗,所得滤液浓缩去一半体积,加入130mL乙醇,在室温下搅拌2小时,过滤后得到固体化合物38-3(20g,收率66.9%)。
化合物38-5的合成:将化合物38-3(15g,27.1mmol)溶解于40mL无水四氢呋喃,冷却到-78℃并在氮气氛下搅拌,向其中缓慢地添加11.6mL(29mmol)的2.5M正丁基锂正己烷溶液,在-78℃和氮气氛下搅拌2小时,向其中滴加溶解于20ml无水四氢呋喃中的化合物38-4(4.8g,27mmol),在室温在氮气氛下搅拌8小时。将反应溶液冷却至0℃,向其中加入70mL1.0M氯化铵水溶液,用二氯甲烷萃取,有机层用无水硫酸镁干燥并过滤,溶液减压浓缩,用二氯甲烷:正己烷为15:85(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥获得固体化合物38-5(13g,68.8%)。
化合物38的合成:化合物38-5(10g,14.3mmol)溶解于80mL苯中,缓慢地向其中加入三氟甲烷磺酸(30g,20mmol),在氮气氛下回流并搅拌24小时,向其中缓慢地加入21mL1.0M碳酸氢钠水溶液,用甲苯和蒸馏水萃取,无水硫酸镁干燥有机层并浓缩,用二氯甲烷:正己烷为15:85(V/V)的冲洗液进行硅胶柱色谱分离浓缩并干燥,获得纯化的固体化合物38(4.5g,收率42%)。
合成实施例3
本合成实施例中合成新型化合物49,技术路线如下所示:
化合物49-3的合成:在三口烧瓶,先加入49-1(15g,50mmol),NaOBu-t(10.5g,110mmol),再加入甲苯(100mL),体系氮气置换,反应液升温至70℃,加入Pd2(dba)3(0.15g,1%w/w)和t-Bu3P(1.5g,10%w/w),氮气置换。49-2(12.2g,50mmol)溶于35mL甲苯中缓慢滴加。滴加完毕后,体系加热至110℃,反应3小时。反应结束后,冷却至50℃,将反应液过硅胶,用100mL甲苯淋洗,所得滤液浓缩去一半体积,加入150mL乙醇,在室温下搅拌2小时。过滤后得到固体化合物49-3(17g,收率73.2%)。
化合物49-5的合成:将化合物49-3(15g,32.3mmol)溶解于50mL无水四氢呋喃,冷却到-78℃并在氮气氛下搅拌。向其中缓慢地添加14mL(35mmol)的2.5M正丁基锂正己烷溶液,在-78℃和氮气氛下搅拌2小时。向其中滴加溶解于30mL无水四氢呋喃中的化合物49-4(5.7g,32mmol),在室温在氮气氛下搅拌8小时。将反应溶液冷却至0℃,向其中加入70mL1.0M氯化铵水溶液,用二氯甲烷萃取,有机层用无水硫酸镁干燥并过滤,溶液减压浓缩。用二氯甲烷:正己烷为15:85(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥获得固体化合物49-5(13g,66.6%)。
化合物49的合成:化合物49-5(10g,16.4mmol)溶解于80mL苯中,缓慢地向其中加入三氟甲烷磺酸(30g,20mmol),在氮气氛下回流并搅拌24小时,向其中缓慢地加入21mL1.0M碳酸氢钠水溶液,用甲苯和蒸馏水萃取,无水硫酸镁干燥有机层并浓缩,用二氯甲烷:正己烷为10:90(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥,获得纯化的固体化合物49(4.3g,收率39%)。
合成实施例4
本合成实施例中合成新型化合物83,技术路线如下所示:
化合物83-3的合成:在三口烧瓶,先加入83-1(15g,46mmol),NaOBu-t(86g,90mmol),再加入甲苯(70mL),体系氮气置换,反应液升温至70℃,加入Pd2(dba)3(0.15g,1%w/w)和t-Bu3P(1.5g,10%w/w),氮气置换。83-2(17.2g,46mmol)溶于70mL甲苯中缓慢滴加。滴加完毕后,体系加热至110℃反应3小时。反应结束后,冷却至50℃,将反应液过硅胶,用100mL甲苯淋洗,所得滤液浓缩去一半体积,加入120mL乙醇,在室温下搅拌2小时,过滤后得到固体化合物83-3(20g,收率70.1%)。
化合物83-5的合成:将化合物83-3(15g,24.2mmol)溶解于70mL无水四氢呋喃,冷却到-78℃并在氮气氛下搅拌,向其中缓慢地添加14mL(35mmol)的2.5M正丁基锂正己烷溶液,在-78℃和氮气氛下搅拌2小时,向其中滴加溶解于20mL无水四氢呋喃中的化合物83-4(4.3g,24mmol),在室温在氮气氛下搅拌8小时。将反应溶液冷却至0℃,向其中加入70mL1.0M氯化铵水溶液,用二氯甲烷萃取,有机层用无水硫酸镁干燥并过滤,溶液减压浓缩。用二氯甲烷:正己烷为10:90(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥获得固体化合物83-5(12g,65.3%)。
化合物83的合成:化合物83-5(10g,13mmol)溶解于60mL苯中,缓慢地向其中加入三氟甲烷磺酸(30g,20mmol),在氮气氛下回流并搅拌24小时,向其中缓慢地加入21mL1.0M碳酸氢钠水溶液,用甲苯和蒸馏水萃取,无水硫酸镁干燥有机层并浓缩,用二氯甲烷:正己烷为10:90(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥,获得纯化的固体化合物83(5g,收率46%)。
合成实施例5
本合成实施例中合成新型化合物162,技术路线如下所示:
化合物162-3的合成:在三口烧瓶,先加入162-1(15g,46mmol),NaOBu-t(86g,90mmol),再加入甲苯(70mL),体系氮气置换,反应液升温至70℃,加入Pd2(dba)3(0.15g,1%w/w)和t-Bu3P(1.5g,10%w/w),氮气置换。162-2(13.1g,46mmol)溶于50mL甲苯中缓慢滴加到三口烧瓶,滴加完毕后,体系加热至110℃反应3小时,反应结束后冷却至50℃,将反应液过硅胶,用100mL甲苯淋洗,所得滤液浓缩去一半体积,加入120mL乙醇,在室温下搅拌2小时,过滤后得到固体化合物162-3(18g,收率73.8%)。
化合物162-5的合成:将化合物162-3(15g,28.3mmol)溶解于70mL无水四氢呋喃,冷却到-78℃并在氮气氛下搅拌,向其中缓慢地添加12mL(30mmol)的2.5M正丁基锂正己烷溶液,在-78℃和氮气氛下搅拌2小时,向其中滴加溶解于20mL无水四氢呋喃中的化合物162-4(5.5g,28mmol),在室温在氮气氛下搅拌8小时。将反应溶液冷却至0℃,向其中加入70mL1.0M氯化铵水溶液,用二氯甲烷萃取,有机层用无水硫酸镁干燥并过滤,溶液减压浓缩,用乙酸乙酯:正己烷为20:80(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥获得固体化合物162-5(12g,62.1%)。
化合物162的合成:化合物162-5(10g,13mmol)溶解于60mL苯中,缓慢地向其中加入三氟甲烷磺酸(30g,20mmol),在氮气氛下回流并搅拌24小时,向其中缓慢地加入21mL1.0M碳酸氢钠水溶液,用甲苯和蒸馏水萃取,无水硫酸镁干燥有机层并浓缩。用二氯甲烷:正己烷为8:92(V/V)的冲洗液进行硅胶柱色谱分离,浓缩并干燥,浓缩并干燥,获得纯化的固体化合物162(5g,收率51%)。
本发明还提供上述新型化合物在有机电致发光显示器件中的应用,具体是该新型化合物作为有机电致发光显示器件中空穴传输层的材料。以下器件实施例制备的有机电致发光显示器件,包括第一电极、第二电极、以及设置在第一电极和第二电极之间的一个或多个有机材料层,可为顶部发射型、底部发射型或双发射型,其有机材料层可为单层结构,也可为层合有两个或多个有机材料层的多层结构,如具有包括空穴注入层、空穴传输层、发光层、电子传输层、电子注入层等作为有机材料层的结构,可使用用于制备有机电致发光显示器件的常见方法和材料来制备。器件实施例1-1至1-12制备单色的有机电致发光显示器件结构采用红光、绿光或蓝光,分别将上述新型化合物2、5、10、24、38、49、88、106、162、175、180、和183用作空穴传输层材料,既可在空穴传输层1中使用,又可在红光、绿光或蓝光等各种光色的空穴传输层2中使用,在红光或绿光的空穴传输层2(与发光层相邻的空穴传输层)中使用效果最佳。
器件实施例1-1
按照如图1所示的结构制作红光有机电致发光显示器件,制备工艺为:在玻璃材质的基底101上,形成透明阳极ITO膜层,膜层厚度为150nm,得到第一电极102作为阳极,之后蒸镀与化合物的混合材料作为空穴注入层103,混合比例为3:97(质量比),之后蒸镀厚度为100nm的化合物得到第一层空穴传输层104,蒸镀厚度为100nm的本发明的新型化合物2,得到第二层空穴传输层105,以95:5的蒸镀速率蒸镀厚度为40nm的制作红光发光单元106,蒸镀厚度为10nm的形成电子阻挡层107,混合比例为4:6(质量比)形成厚度为30nm的电子传输层108,之后形成厚度为100nm的镁银(质量比1:9),作为第二电极109。
器件实施例1-2至1-12中分别采用上述新型化合物5、10、24、38、49、88、106、162、175、180、和183替代器件实施例1-1中新型化合物2作为第二空穴传输层105来制作红光有机电致发光显示器件,对比例1至3中分别采用化合物 替代器件实施例1-1中新型化合物2作为第二空穴传输层105来制作红光有机电致发光显示器件,得到的有机电致发光显示器件进行电压、效率和使用寿命的性能测试,如表1所示。
表1
从表1可以看出,采用本发明中新型化合物作为红光有机电致发光显示器件的空穴传输层材料,得到的器件发光效率高、驱动电压低和使用寿命长。
器件实施例2-1
按照如图1所示的结构制作绿光有机电致发光显示器件,制备工艺为:在玻璃材质的基底101上,形成透明阳极ITO膜层,膜层厚度为150nm,得到第一电极102作为阳极,之后蒸镀与化合物的混合材料作为空穴注入层103,混合比例为3:97(质量比),之后蒸镀厚度为100nm的化合物得到第一层空穴传输层104,再蒸镀厚度为40nm的本发明中新型化合物7,得到第二层空穴传输层105,以90:10的蒸镀速率蒸镀发光主体和发光客体,形成厚度为40nm的绿光发光单元106其中发光层主体为预先按40%与60%比例混合好的混合物,发光客体为蒸镀厚度为10nm的形成电子阻挡层107,混合比例为4:6(质量比)形成厚度为30nm的电子传输层108,之后形成厚度为100nm的镁银(质量比1:9),作为第二电极109。
器件实施例2-2至2-10中分别采用上述新型化合物14、19、59、75、83、118、129、162和167替代器件实施例2-1中新型化合物7作为第二空穴传输层105来制作绿光有机电致发光显示器件,对比例1至3中分别采用化合物D1、D2和D3替代器件实施例2-1中新型化合物2作为第二空穴传输层105来制作绿光有机电致发光显示器件,得到的有机电致发光显示器件进行电压、效率和使用寿命的性能测试,如表2所示。
表2
从表2可以看出,采用本发明中新型化合物作为绿光有机电致发光显示器件的空穴传输层材料,得到的器件发光效率高、驱动电压低和使用寿命长。
另外,本发明还提供一种包含上述任一有机电致发光显示器件的显示面板,以及包含上述任一显示面板的显示装置。
Claims (11)
3.根据权利要求1或2所述的新型化合物,其特征在于,在化学式1或化学式2中,R为氢、氘、取代或未取代的碳原子数为1–20的烷基或烷氧基、取代或未取代的成环碳原子数为5–12的芳基、取代或未取代的成环碳原子数为5–12的杂芳基、取代或未取代的碳原子数为1–10的氟烷基或氰基;
Cy为碳原子数为5–15的环烷基;
Ar1至Ar3各自独立地为取代或未取代的成环碳原子数为5–12的亚芳基、取代或未取代的成环碳原子数为5–12的亚杂芳基。
4.根据权利要求1或2所述的新型化合物,其特征在于,在化学式1或化学式2中,Cy与取代胺基位于苯环的相邻位置。
6.权利要求1至5任一项所述的新型化合物在有机电致发光显示器件中的应用。
7.一种有机电致发光显示器件,包含上述权利要求1至5任一项所述的新型化合物。
8.根据权利要求7所述的有机电致发光显示器件,其特征在于,所述新型化合物作为红光或绿光机电致发光显示器件的空穴传输层材料。
9.根据权利要求8所述的有机电致发光显示器件,其特征在于,所述新型化合物作为所述红光或绿光机电致发光显示器件中与发光层相邻的空穴传输层材料。
10.一种显示面板,其特征在于,包含权利要求7至9任一项所述有机电致发光显示器件。
11.一种显示装置,其特征在于,包含权利要求10所述的显示面板。
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