CN106478609A - 一种应用于oled领域的材料 - Google Patents
一种应用于oled领域的材料 Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 39
- 150000001875 compounds Chemical class 0.000 claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 230000005525 hole transport Effects 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000006069 Suzuki reaction reaction Methods 0.000 claims description 3
- 150000001491 aromatic compounds Chemical group 0.000 claims description 3
- 125000001624 naphthyl group Chemical group 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
- 230000005540 biological transmission Effects 0.000 abstract 1
- 150000002989 phenols Chemical group 0.000 abstract 1
- 230000027756 respiratory electron transport chain Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 30
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 12
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- 239000000758 substrate Substances 0.000 description 7
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 239000012267 brine Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 4
- 229940125904 compound 1 Drugs 0.000 description 4
- 229940125782 compound 2 Drugs 0.000 description 4
- 229940126214 compound 3 Drugs 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000012044 organic layer Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000002390 rotary evaporation Methods 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- FMBGSKTVVMNVPG-PQRLSZSZSA-N Cc1cc(C2=C(C3)C(C4(c5ccccc5-c5c4cccc5)c(cc4)ccc4-c4nc(-c5ccccc5)c(C)c(C5C=CC=CC5)n4)=C[C@H]4C2=C4)c3cc1 Chemical compound Cc1cc(C2=C(C3)C(C4(c5ccccc5-c5c4cccc5)c(cc4)ccc4-c4nc(-c5ccccc5)c(C)c(C5C=CC=CC5)n4)=C[C@H]4C2=C4)c3cc1 FMBGSKTVVMNVPG-PQRLSZSZSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229940125898 compound 5 Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- RMBPEFMHABBEKP-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2C3=C[CH]C=CC3=CC2=C1 RMBPEFMHABBEKP-UHFFFAOYSA-N 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- 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
- C07D405/10—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 carbon chain containing aromatic rings
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/10—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- H10K50/00—Organic light-emitting devices
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- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
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Abstract
本发明提供了一种应用于OLED领域的材料,其特征在于,含有一种结构如通式(I)所示的化合物:其中,R为芳香性化合物;—A为
Description
技术领域
本发明涉及OLED领域,尤其涉及一种应用于OLED领域的材料。
背景技术
TFT-LCD作为一种显示屏,是一种非自发光之显示器,必须透过背光源投射光线,依序穿透TFT-LCD面板中之偏光板、玻璃基板、液晶层、彩色滤光片、玻璃基板、偏光板等相关零组件,最后进入人之眼睛成像,达到显示之功能。在实际应用中,TFT-LCD显示屏具有反应速率慢、耗电、视角窄等缺点,不足以成为完美的显示屏。
OLED,作为一种新型显示技术,具有自发光的特性,采用非常薄的有机材料涂层和玻璃基板制备得到。当有电流通过时,这些有机材料就会发光。目前,OLED的基本结构如三明治的结构,整个结构层中包括空穴传输层(HTL)、发光层(EL)与电子传输层(ETL)。当电力供应至适当电压时,正极空穴与阴极电荷就会在发光层中结合,产生光亮,依其配方不同产生红、绿和蓝三原色,构成基本色彩。由于OLED的特性是自己发光,因此,可视度和亮度均高,其次是电压需求低且省电效率高,加上反应快、重量轻、厚度薄,构造简单,成本低等,被视为21世纪最具前途的产品之一。
事实上,虽然OLED应用范围的不断扩大,但仍然存在不足,而决定OLED性能优劣的基本因素之一还是材料问题,因此,设计与合成一种新型OLED材料以克服其在实际应用过程中出现的不足,是OLED研究工作中的重点。
发明内容
基于上述背景,本申请提供了一种应用于OLED领域的材料,其包含一种芴的衍生化合物,可以应用于OLED器件中的空穴传输层、发光层、电子传输层中,最终得到一种性能更佳的OLED器件。
本发明的第一方面的主题是一种应用于OLED领域的材料,其特征在于,含有一种结构如通式(I)所示的化合物:
其中,R为芳香性化合物;—A为或X为O或S。
在本发明的一个实施例中,R为含有3-25个碳或氮的化合物,如包含苯环、萘环。
进一步地,R优选为选自以下结构:
所述化合物优选为选自以下结构:
所述化合物通过Suzuki偶联反应制备得到。
本发明的第二方面的主题是上述所述材料的应用:
一种含有上述所述材料的OLED空穴传输层;
一种含有上述所述材料的OLED发光层;
一种含有上述所述材料的OLED电子传输层;
一种含有上述所述材料的OLED器件。
优选地,在上述所述材料的应用中,所述材料优选地作为红光主体材料、绿光主体材料以及空穴传输材料。
具体实施方式
本发明提供了一种应用于OLED领域的材料,其特征在于,含有一种结构如通式(I)所示的化合物:
其中,R为芳香性化合物;—A为或X为O或S。
在本发明的一个实施例中,R为含有3-25个碳或氮的化合物,如包含苯环、萘环。
进一步地,R优选为选自以下结构:
所述化合物优选为选自以下结构:
所述化合物通过Suzuki偶联反应制备得到。
本发明还提供了上述所述材料的应用:
一种含有上述所述材料的OLED空穴传输层;
一种含有上述所述材料的OLED发光层;
一种含有上述所述材料的OLED电子传输层;
一种含有上述所述材料的OLED器件。
优选地,在上述所述材料的应用中,所述材料优选地作为红光主体材料、绿光主体材料以及空穴传输材料。
实施例1
1、一种应用于OLED领域的化合物,其结构如式(I-1)所示:
2、所述化合物的制备方法包括:
往反应瓶中加入0.1mol中间体A-1、0.1mol中间体B-1以及1000mL的甲苯,加入碳酸钾200mmol和1mmol催化剂Pd[P(C6H5)3]4,氮气保护下回流反应24小时,反应完成后加入蒸馏水500ml,冷却过滤,用二氯甲烷萃取,盐水洗,分出有机层,旋蒸除去有机溶剂,粗产品过柱,再用二氯甲烷和乙醇重结晶纯化得到化合物(I-1);
其中,
3、分子量表征MS 639.2311
H-NMR:7.53(2H),7.62(4H),7.71(4H),7.58(1H),7.67(1H),7.76(1H),7.34(2H),7.49(2H),7.64(2H),7.61(2H),7.64(2H),7.36(2H),7.48(2H),7.51(2H)。
实施例2
1、一种应用于OLED领域的化合物,其结构如式(I-2)所示:
2、所述化合物的制备方法包括:
往反应瓶中加入0.1mol中间体A-2、0.1mol中间体B-2以及1000mL的甲苯,加入碳酸钾200mmol和1mmol催化剂Pd[P(C6H5)3]4,氮气保护下回流反应24小时,反应完成后加入蒸馏水500ml,冷却过滤,用二氯甲烷萃取,盐水洗,分出有机层,旋蒸除去有机溶剂,粗产品过柱,再用二氯甲烷和乙醇重结晶纯化得到化合物(I-2);
其中,
3、分子量表征MS 655.2082
H-NMR:7.53(2H),7.62(4H),7.71(4H),7.58(1H),7.75(1H),7.78(1H),7.39(2H),7.49(2H),7.64(2H),7.61(2H),7.64(2H),7.36(2H),7.48(2H),7.53(2H)。
实施例3
1、一种应用于OLED领域的化合物,其结构如式(I-3)所示:
2、所述化合物的制备方法包括:
往反应瓶中加入0.1mol中间体A-3、0.1mol中间体B-3以及1000mL的甲苯,加入碳酸钾200mmol和1mmol催化剂Pd[P(C6H5)3]4,氮气保护下回流反应24小时,反应完成后加入蒸馏水500ml,冷却过滤,用二氯甲烷萃取,盐水洗,分出有机层,旋蒸除去有机溶剂,粗产品过柱,再用二氯甲烷和乙醇重结晶纯化得到化合物(I-3);
其中,
3、分子量表征MS 655.2082
H-NMR:7.53(2H),7.62(4H),7.71(4H),7.58(1H),7.67(1H),7.76(1H),7.34(2H),7.49(2H),7.62(2H),7.67(2H),7.56(2H),7.36(2H),7.48(2H),7.51(2H)。
实施例4
1、一种应用于OLED领域的化合物,其结构如式(I-4)所示:
2、所述化合物的制备方法包括:
往反应瓶中加入0.1mol中间体A-4、0.1mol中间体B-4以及1000mL的甲苯,加入碳酸钾200mmol和1mmol催化剂Pd[P(C6H5)3]4,氮气保护下回流反应24小时,反应完成后加入蒸馏水500ml,冷却过滤,用二氯甲烷萃取,盐水洗,分出有机层,旋蒸除去有机溶剂,粗产品过柱,再用二氯甲烷和乙醇重结晶纯化得到化合物(I-4);
其中,
3、分子量表征MS 639.2311
H-NMR:7.53(2H),7.62(4H),7.71(4H),7.58(1H),7.67(1H),7.76(1H),7.34(2H),7.49(2H),7.64(2H),7.61(2H),7.64(2H),7.36(2H),7.48(2H),7.51(2H)。
应用实施例——器件
对比应用实施例:
将透明阳极电极ITO基板在异丙醇中超声清洗5-10分钟,并暴露在紫外光下20-30分钟,随后用plasma处理5-10分钟。随后将处理后的ITO基板放入蒸镀设备。首先蒸镀一层30-50nm的NPB作为空穴传输层,然后是发光层的蒸镀,混合蒸镀,CBP,以及5--10%的Ir(ppy)3,随后蒸镀20-40nm的Alq3作为电子传输层,随后再蒸镀0.5-2nmLiF,随后蒸镀100-200nm的金属Al。
应用实施例1
将透明阳极电极ITO基板在异丙醇中超声清洗5-10分钟,并暴露在紫外光下20-30分钟,随后用plasma处理5-10分钟。随后将处理后的ITO基板放入蒸镀设备。首先蒸镀一层30-50nm的NPB作为空穴传输层,然后是发光层的蒸镀,混合蒸镀化合物1,以及5--10%的Ir(ppy)3,随后蒸镀20-40nm的Alq3,随后再蒸镀0.5-2nmLiF,随后蒸镀100-200nm的金属Al。
应用实施例2
将对比实施例中的CBP换成化合物2,作为发光层。
应用实施例3
将对比实施例中的CBP换成化合物3,作为发光层。
应用实施例4
将对比实施例中的CBP换成化合物4,作为发光层。
应用实施例5
将对比实施例中的Alq3换成化合物1,作为电子传输层。
应用实施例6
将对比实施例中的Alq3换成化合物2,作为电子传输层。
应用实施例7
将对比实施例中的Alq3换成化合物3,作为电子传输层。
应用实施例8
将对比实施例中的Alq3换成化合物4,作为电子传输层。
其中:
OLED器件制作如下:
对比应用实施例:ITO/NPB/CBP:Ir(ppy)3/Alq3/LiF/Al;
应用实施例1:ITO/NPB/化合物1:Ir(ppy)3/Alq3/LiF/Al;
应用实施例2:ITO/NPB/化合物2:Ir(ppy)3/Alq3/LiF/Al;
应用实施例3:ITO/NPB/化合物3:Ir(ppy)3/Alq3/LiF/Al;
应用实施例4:ITO/NPB/化合物4:Ir(ppy)3/Alq3/LiF/Al;
应用实施例5:ITO/NPB/CBP:Ir(ppy)3/化合物1/LiF/Al;
应用实施例6:ITO/NPB/CBP:Ir(ppy)3/化合物2/LiF/Al;
应用实施例7:ITO/NPB/CBP:Ir(ppy)3/化合物3/LiF/Al;
应用实施例8:ITO/NPB/CBP:Ir(ppy)3/化合物4/LiF/Al。
在1000nits下,OLED器件结果如下:
器件 | Cd/A | Driver Voltage | CIEx | CIEy |
对比应用实施例 | 10cd/A | 4.6V | 0.33 | 0.64 |
应用实施例1 | 18cd/A | 4.2V | 0.33 | 0.64 |
应用实施例2 | 18cd/A | 3.9V | 0.33 | 0.64 |
应用实施例3 | 20cd/A | 3.6V | 0.33 | 0.64 |
应用实施例4 | 16cd/A | 4.0V | 0.33 | 0.64 |
应用实施例5 | 19cd/A | 4.1V | 0.33 | 0.64 |
应用实施例6 | 17cd/A | 3.9V | 0.33 | 0.64 |
应用实施例7 | 16cd/A | 4.0V | 0.33 | 0.64 |
应用实施例8 | 16cd/A | 3.7V | 0.33 | 0.64 |
以上对本发明的具体实施例进行了详细描述,但其只是作为范例,本发明并不限制于以上描述的具体实施例。对于本领域技术人员而言,任何对本发明进行的等同修改和替代也都在本发明的范畴之中。因此,在不脱离本发明的精神和范围下所作的均等变换和修改,都应涵盖在本发明的范围内。
Claims (10)
1.一种应用于OLED领域的材料,其特征在于,含有一种结构如通式(I)所示的化合物:
其中,R为芳香性化合物;—A为 X为O或S。
2.根据权利要求1所述材料,其特征在于,R为含有3-25个碳或氮的化合物。
3.根据权利要求2所述材料,其特征在于,R含苯环、萘环。
4.根据权利要求1所述材料,其特征在于,R选自以下结构:
5.根据权利要求1所述材料,其特征在于,R选自以下结构:
6.根据权利要求1所述材料,其特征在于,所述化合物通过Suzuki偶联反应制备得到。
7.一种含有权利要求1-6中任意一项所述材料的OLED空穴传输层。
8.一种含有权利要求1-6中任意一项所述材料的OLED发光层。
9.一种含有权利要求1-6中任意一项所述材料的OLED电子传输层。
10.一种含有权利要求1-6中任意一项所述材料的OLED器件。
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