CN113387917B - 一种含有螺芴衍生物的有机化合物、有机电致发光器件和显示面板 - Google Patents

一种含有螺芴衍生物的有机化合物、有机电致发光器件和显示面板 Download PDF

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CN113387917B
CN113387917B CN202110744372.5A CN202110744372A CN113387917B CN 113387917 B CN113387917 B CN 113387917B CN 202110744372 A CN202110744372 A CN 202110744372A CN 113387917 B CN113387917 B CN 113387917B
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CN113387917A (zh
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韩建厅
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Kunshan Govisionox Optoelectronics Co Ltd
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Abstract

本发明公开了一种含有螺芴衍生物的有机化合物、有机电致发光器件和显示面板。该含有螺芴衍生物的有机化合物结构如通式(1)所示。本发明的有机化合物以螺芴衍生物为核心，结构刚性较强，空间位阻大，不易转动，使得本发明的有机化合物材料的立体结构更加稳定。本发明的含有螺芴衍生物的有机化合物应用于有机电致发光器件时，有机电致发光器件的光电性能以及寿命得到有效提升。

Description

一种含有螺芴衍生物的有机化合物、有机电致发光器件和显 示面板
技术领域
本发明涉及有机电致发光技术领域，尤其是涉及一种含有螺芴衍生物的有机化合物、有机电致发光器件和显示面板。
背景技术
当前，有机发光二极管(Organic Light-Emitting Diode，OLED)显示技术已经在智能手机，平板电脑等领域获得应用，进一步还将向电视等大尺寸应用领域扩展，但是，和实际的产品应用要求相比，OLED器件的发光效率和使用寿命等性能还需要进一步提升。目前对OLED发光器件提高性能的研究包括：降低器件的驱动电压、提高器件的发光效率、提高器件的使用寿命等。为了实现OLED器件的性能的不断提升，不但需要从OLED器件结构和制作工艺的创新，更需要OLED光电功能材料不断研究和创新，创制出更高性能的OLED功能材料。
发明内容
针对现有技术存在的上述问题，本发明提供了含有螺芴衍生物的有机化合物、有机电致发光器件和显示面板。能够有效提升有机电致发光器件的光电性能以及寿命。
为达此目的，本发明采用如下技术方案：
本发明提供一种含有螺芴衍生物的有机化合物，具有如通式(1)所示结构：
通式(1)中，J1、J2分别表示为C，J1与J2通过取代或未取代的亚乙烯基或亚乙基连接；
所述取代亚乙烯基或亚乙基的基团独立选自氰基、卤素、C1-10烷基、C6-30芳基、C2-30杂芳基、通式(2)、通式(3)所示结构中的一种或多种；
通式(1)中，A连接在通式(1)两侧苯环上的任意碳原子上，A表示为通式(2)或通式(3)所示结构：
通式(2)中，所述i为0或1；所述X表示为-O-、-S-、-C(R3)(R4)-或-N(R5)-；
所述Z1每次出现相同或不同地表示为N、C或C-R6；
所述Ar1表示为单键、取代或未取代的C6-30亚芳基、取代或未取代的C2-30亚杂芳基；
所述R3-R5分别独立地表示为C1-10的烷基、取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
R6表示为氢原子，C1-10的烷基、取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
通式(3)中，所述Z2、Z3、Z4分别独立地表示为N或CH，且Z2、Z3、Z4中至少有一个表示为N；
所述Ar2表示为单键、取代或未取代的C6-30亚芳基、取代或未取代的C2-30亚杂芳基；
所述R1、R2分别独立地表示为取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
所述取代C6-30芳基、C2-30杂芳基、C6-30亚芳基或C2-30亚杂芳基的基团任选自氰基、卤素、C1-10烷基、C6-30芳基、C2-30杂芳基中的一种或几种；
所述杂芳基、亚杂芳基中杂原子任选自氧原子、硫原子或氮原子。
可选地，所述C6-30芳基为苯基、萘基、蒽基、菲基、芘基、二联苯基、三联苯基、二甲基芴基或二苯基芴基；
所述C2-30杂芳基为吡啶基、萘啶基、二苯并呋喃基、二苯并噻吩基、咔唑基或氮杂咔唑基；
所述C1-10烷基为甲基、乙基、丙基、异丙基或叔丁基。
可选地，所述Ar1、Ar2各自独立地表示为单键、取代或未取代的亚苯基、取代或未取代的亚萘基、取代或未取代的亚联苯基、取代或未取代的亚三联苯基、取代或未取代的亚吡啶基、取代或未取代的亚呋喃基、取代或未取代的亚萘啶基、取代或未取代的亚二苯并呋喃基、取代或未取代的亚二苯并噻吩基、取代或未取代的亚二甲基芴基、取代或未取代的亚咔唑基中的任一种。
可选地，所述R1、R2分别独立地表示为取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种。
可选地，所述R3-R5分别独立地表示为甲基、乙基、丙基、异丙基、叔丁基、戊基、取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种；R6表示为氢原子、甲基、乙基、丙基、异丙基、叔丁基、戊基、取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种。
可选地，所述取代用的基团任选自甲基、乙基、丙基、异丙基、叔丁基、戊基、苯基、萘基、萘啶基、二联苯基、三联苯基、呋喃基、二苯并呋喃基、咔唑基或吡啶基中的一种或几种。
可选地，所述含有螺芴衍生物的有机化合物选自如式(1)-式(230)所示的化合物。
本发明提供一种有机电致发光器件，包括阳极、阴极和有机功能层，所述有机功能层位于所述阴极和阳极之间，所述有机功能层含有上述任一项所述的含有螺芴衍生物的有机化合物。
优选地，所述有机功能层包括发光层、空穴阻挡层、电子传输层中的至少一种。
本发明提供一种显示面板，包括上述任一项所述的有机电致发光器件。
本发明有益效果在于：
本发明的化合物均以螺芴衍生物为核心，此结构刚性较强，空间位阻大，不易转动，使得本发明的有机化合物材料的立体结构更加稳定。进一步地，本发明含有螺芴衍生物的有机化合物在母核上进一步增加杂蒽酮或三嗪衍生物基团后，材料玻璃化转变温度(Tg)，提高了材料的稳定性。取代基团的加入使得材料分子量增加，本发明的有机化合物材料的蒸镀温度低，因此，材料加工温度和分解温度之间的温度区间变宽，提高了材料的使用加工窗口。
本发明化合物作为OLED的空穴阻挡层或者电子传输层使用时，合适的LUMO能级能够有效地实现电子传输，提升激子在发光层中的复合效率，减少了能量损失，使发光层主体材料能量充分传递至掺杂材料，从而提升材料应用于器件后的发光效率。
本发明的化合物作为发光层主体材料使用时，使得电子和空穴在发光层的分布更加平衡，提升了空穴注入和传输性能；有效提高激子利用率和高荧光辐射效率，降低高电流密度下的器件的效率滚降，降低器件驱动电压，提高器件的电流效率和寿命。
附图说明
图1为本发明的有机电致发光器件的结构示意图。
其中，1为透明基板层，2为阳极层，3为空穴注入层，4为空穴传输层，5为电子阻挡层，6为发光层，7为空穴阻挡层，8为电子传输层，9为电子注入层，10为阴极层，11为CPL层。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明的实施例，对本发明实施例中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一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的第一方面提供了一种含有螺芴衍生物的有机化合物，具有如通式(1)所示结构：
通式(1)中，J1、J2分别表示为C，J1与J2通过取代或未取代的亚乙烯基或亚乙基连接；
所述取代亚乙烯基或亚乙基的基团独立选自氰基、卤素、C1-10烷基、C6-30芳基、C2-30杂芳基、通式(2)、通式(3)所示结构中的一种或多种；
通式(1)中，A连接在通式(1)两侧苯环上的任意碳原子上，A表示为通式(2)或通式(3)所示结构：
通式(2)中，所述i为0或1；所述X表示为-O-、-S-、-C(R3)(R4)-或-N(R5)-；
所述Z1每次出现相同或不同地表示为N、C或C-R6；
所述Ar1表示为单键、取代或未取代的C6-30亚芳基、取代或未取代的C2-30亚杂芳基；
所述R3-R5分别独立地表示为C1-10的烷基、取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
R6表示为氢原子，C1-10的烷基、取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
通式(3)中，所述Z2、Z3、Z4分别独立地表示为N或CH，且Z2、Z3、Z4中至少有一个表示为N；
所述Ar2表示为单键、取代或未取代的C6-30亚芳基、取代或未取代的C2-30亚杂芳基；
所述R1、R2分别独立地表示为取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
所述取代C6-30芳基、C2-30杂芳基、C6-30亚芳基或C2-30亚杂芳基的基团任选自氰基、卤素、C1-10烷基、C6-30芳基、C2-30杂芳基中的一种或几种；
所述杂芳基、亚杂芳基中杂原子任选自氧原子、硫原子或氮原子。
在一种可选地实施方式中，C6-30芳基为苯基、萘基、蒽基、菲基、芘基、二联苯基、三联苯基、二甲基芴基或二苯基芴基；
所述C2-30杂芳基为吡啶基、萘啶基、二苯并呋喃基、二苯并噻吩基、咔唑基或氮杂咔唑基；
所述C1-10烷基为甲基、乙基、丙基、异丙基或叔丁基。
在一种可选地实施方式中，Ar1、Ar2各自独立地表示为单键、取代或未取代的亚苯基、取代或未取代的亚萘基、取代或未取代的亚联苯基、取代或未取代的亚三联苯基、取代或未取代的亚吡啶基、取代或未取代的亚呋喃基、取代或未取代的亚萘啶基、取代或未取代的亚二苯并呋喃基、取代或未取代的亚二苯并噻吩基、取代或未取代的亚二甲基芴基、取代或未取代的亚咔唑基中的任一种。
在一种可选地实施方式中，R1、R2分别独立地表示为取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种。
在一种可选地实施方式中，R3-R5分别独立地表示为甲基、乙基、丙基、异丙基、叔丁基、戊基、取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种；R6表示为氢原子、甲基、乙基、丙基、异丙基、叔丁基、戊基、取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种。
在一种可选地实施方式中，取代用的基团任选自甲基、乙基、丙基、异丙基、叔丁基、戊基、苯基、萘基、萘啶基、二联苯基、三联苯基、呋喃基、二苯并呋喃基、咔唑基或吡啶基中的一种或几种。
在一种可选地实施方式中，具体地，所述含有螺芴衍生物的有机化合物为具有以下结构之一的化合物：
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本发明的第二方面提供了一种有机电致发光器件，包括阳极、阴极和有机功能层，所述有机功能层位于所述阴极和阳极之间，所述有机功能层含有上述任一项所述的含有螺芴衍生物的有机化合物。
优选地，在一种可选地实施方式中，所述有机功能层包括发光层、空穴阻挡层、电子传输层中的至少一种。
本发明的第三方面提供了一种显示面板，包括上述有机电致发光器件。
下面结合附图，对本发明含有螺芴衍生物的有机化合物的制备实施例以及器件实验例进行具体描述。
中间体F的制备：
中间体F1的制备过程：
在氮气气氛下，向250m1三口瓶中加入5mmol原料A1、5mmol原料B1溶解到40ml四氢呋喃中，加入15mmol碳酸钾和0.25mmol Pd(PPh3)4，将反应混合物加热至65℃，回流18小时，利用TLC观察反应，直至反应完全，自然冷却至室温，用***进行萃取，收集有机层，用无水硫酸镁干燥，旋蒸除去溶剂。所得物质通过硅胶柱(石油醚作为洗脱剂)纯化，得到目标产物中间体C1。
准备250ml三口烧瓶，将6.68mol中间体C1溶解在50ml的二甲基甲酰胺中，加入6.90mol的氧化银，0.34mol的醋酸钯，5.89mol的三氟乙酸酐，将反应混合物加热至130℃，回流36小时，反应完全，将反应混合物自然冷却至室温，加水将反应猝灭，用乙酸乙酯萃取，收集有几层，用无水硫酸镁干燥，旋蒸除去溶剂，所得物质通过硅胶柱(石油醚作为洗脱剂)纯化，得到目标产物中间体D1。
500mL三口瓶中，加入3g原料D1和30mL干燥的四氢呋喃，氮气保护下降温至-78℃，缓慢滴加4ml丁基锂的正己烷溶液(2.5mol/L)，加毕于-78℃保温反应30分钟，再缓慢滴入2.6g原料E1，缓慢升至25℃反应两小时，停止，加入氯化铵水溶液水解，有机层硫酸钠干燥后，浓缩至干，再加入20mL二氯甲烷溶解，氮气下于0℃向其中缓慢滴加2g甲烷磺酸，加毕升至25℃反应1小时，加水分液，有机层浓缩后经硅胶柱层析分离，石油醚洗脱，浓缩洗脱液得到3.34g目标产物F1，产率75％。
中间体F2至中间体F17的制备方法与中间体F1的制备方法相同，涉及的原料和反应方程式如下：
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中间体G的制备：
中间体G1的制备过程：
在250mL三口瓶中，通入氮气，将10.0mol原料F1、12.0mol原料K1、0.3g Pd(dppf)Cl2和30.0mmol醋酸钾加入100mL的1，4-二恶烷中，在130℃下，反应5小时。通过硅胶柱层析分离纯化得到目标产物，HPLC纯度99.7％，收率63.8％。
其余中间体G的合成参考中间体G1的合成方法。
制备实施例1化合物1的合成
在250mL三口瓶中，称取11.11mol中间体F1和7.40mol中间体G1，用体积比为3∶1∶1的甲苯、水和乙醇的混合溶液溶解；再加入0.012mol Pd(OAc)2、7.21mmol Cs2CO3和14.42mmol Xphos；在氮气保护、120℃条件下，微波反应3小时。反应结束后，用二氯甲烷萃取得到有机层，再用无水MgSO4干燥，进一步通过柱层析方法分离纯化得到目标产物。
制备实施例2化合物12的合成
制备实施例3化合物30的合成
制备实施4化合物47的合成
制备实施5化合物68的合成
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制备实施6化合物87的合成
制备实施7化合物99的合成
制备实施8化合物124的合成
制备实施9化合物133的合成
制备实施10化合物178的合成
制备实施11化合物180的合成
制备实施12化合物182的合成
制备实施13化合物189的合成
制备实施14化合物192的合成
制备实施15化合物198的合成
制备实施16化合物202的合成
制备实施17化合物204的合成
制备实施18化合物220的合成
制备实施例得到的含有螺芴衍生物的有机化合物的结构表征如表1所示：
表1
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本发明含有螺芴衍生物的有机化合物具有高的玻璃化转变温度(Tg)和三线态能级(T1)，合适的HOMO能级、LUMO能级，可作为发光层、空穴阻挡层、电子传输层材料在有机电致发光器件中使用。对本发明上述实施例制备的化合物分别进行HOMO能级测试、LUMO能级测试、T1能级以及热性能测试，结果如表2所示。
表2
其中，三线态能级T1是由Horiba的Fluorolog-3系列荧光光谱仪测试，材料的测试条件为2*10-5mol/L的甲苯溶液；玻璃化转变温度Tg由示差扫描量热法(DSC，德国耐驰公司DSC204F1示差扫描量热仪)测定，升温速率10℃/min；最高占据分子轨道HOMO能级是由电离能量测试***(IPS-3)测试，测试为大气环境；Eg通过双光束紫外可见分光光度计(型号：TU-1901)进行测试，LUMO＝HOMO+Eg。*所示结构与下文对应。
由上表数据可知，本发明含有螺芴衍生物的有机化合物具有适当的HOMO能级、LUMO能级，适合作为发光层、空穴阻挡层或电子传输层材料；同时，本发明的含有螺芴衍生物的有机化合物具有较高的热稳定性，使得采用用本发明的有机化合物的OLED器件寿命得到提升。
以下通过器件实施例1-36和器件比较例1详细说明本发明的含有螺芴衍生物的有机化合物在器件中作为主体发光层或电子传输层或空穴阻挡层的应用效果。器件实施例2-12、器件比较例1与器件实施例1相比，所述器件的制作工艺完全相同，并且采用了相同的基板材料和电极材料，电极材料的膜厚也保持一致，所不同的是器件中发光层主体的材料发生了改变；器件实施例13-24对器件的空穴阻挡层材料做了变换；器件实施例25-36对器件的电子传输层材料做了变换，各实施例所得器件的性能测试结果如表4所示。
器件实施例1
如图1所示，透明基板层1为透明PI膜，对阳极层2(ITO(15nm)/Ag(150nm)/ITO(15nm))进行洗涤，即依次进行清洗剂洗涤(SemiClean M-L20)、纯水洗涤、干燥，再进行紫外线-臭氧洗涤以清除阳极层表面的有机残留物。在进行了上述洗涤之后的阳极层2上，利用真空蒸镀装置，蒸镀HT-1和P-1作为空穴注入层3，膜厚为10nm，HT-1和P-1的质量比为97∶3。接着蒸镀HT-1作为空穴传输层4，厚度为130nm。随后蒸镀EB-1作为电子阻挡层5，厚度为40nm。上述电子阻挡层材料蒸镀结束后，制作OLED发光器件的发光层6，其结构包括OLED发光层6所使用化合物1和GH-2作为主体材料，GD-1作为掺杂材料，掺杂材料掺杂比例为6％(质量比)，发光层膜厚为40nm。在上述发光层6之后，继续真空蒸镀HB-1，膜厚为5nm，此层为空穴阻挡层7。在上述空穴阻挡层7之后，继续真空蒸镀ET-1和Liq，ET-1和Liq质量比为1∶1，膜厚为35nm，此层为电子传输层8。在电子传输层8上，通过真空蒸镀装置，制作膜厚为1nm的LiF层，此层为电子注入层9。在电子注入层9上，通过真空蒸镀装置，制作膜厚为15nm的Mg∶Ag电极层，Mg、Ag质量比为1∶9，此层为阴极层10使用。在阴极层10上，真空蒸镀CP-1作为CPL层11，厚度为70nm。
相关材料的分子结构式如下所示：
如上所述地完成OLED发光器件后，用公知的驱动电路将阳极和阴极连接起来，测量器件的电压、电流效率，发光光谱以及器件的寿命。用同样的方法制备的器件实施例和比较例如表3所示；所得器件的电压、电流效率、颜色和10000nits亮度下的LT95寿命的测试结果如表4所示。
表3
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表4
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其中，电压、电流效率和色坐标是在电流密度为10mA/cm2条件下测试的，使用IVL(电流-电压-亮度)测试***(苏州弗士达科学仪器有限公司)；寿命测试***为日本***技研公司EAS-62C型OLED器件寿命测试仪；LT95指的是在10000nits下，器件亮度衰减到95％所用时间。
表4的结果表明本发明含有螺芴衍生物的有机化合物作为发光层主体材料、电子传输层材料、空穴阻挡层材料可应用于OLED发光器件中。器件实施例1-36与比较例1相比，无论是效率还是寿命获得较大改观，特别是器件的驱动寿命获得较大的提升。
虽然已通过实施例和优选实施方式公开了本发明，但应理解，本发明不限于所公开的实施方式。相反，本领域技术人员应明白，其意在涵盖各种变型和类似的安排。因此，所附权利要求的范围应与最宽的解释相一致以涵盖所有这样的变型和类似的安排。

Claims (8)

1.一种含有螺芴衍生物的有机化合物，其特征在于，具有如通式(1)所示结构：
通式(1)中，J1、J2分别表示为C，J1与J2通过取代或未取代的亚乙烯基或亚乙基连接；
所述取代亚乙烯基或亚乙基的基团独立选自氰基、卤素、C1-10烷基、C6-30芳基、C2-30杂芳基、通式(2)、通式(3)所示结构中的一种或多种；
通式(1)中，A连接在通式(1)两侧苯环上的任意碳原子上，A表示为通式(2)或通式(3)所示结构：
通式(2)中，所述i为0或1；所述X表示为-O-、-S-、-C(R3)(R4)-或-N(R5)-；
所述Z1每次出现相同或不同地表示为N、C或C-R6；
所述Ar1表示单键、取代或未取代的亚苯基、取代或未取代的亚萘基、取代或未取代的亚吡啶基中的任一种；
所述R3-R5分别独立地表示为C1-10的烷基、取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
R6表示为氢原子、C1-10的烷基、取代或未取代的C6-30的芳基、取代或未取代的C2-30杂芳基；
通式(3)中，所述Z2、Z3、Z4分别独立地表示为N或CH，且Z2、Z3、Z4中至少有一个表示为N；
所述Ar2表示单键、取代或未取代的亚苯基、取代或未取代的亚萘基、取代或未取代的亚吡啶基中的任一种；
所述R1、R2分别独立地表示为取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯并呋喃基中的任一种；
所述取代C6-30芳基、C2-30杂芳基的基团选自氰基、卤素、C1-10烷基、C6-30芳基、C2-30杂芳基中的一种或几种；
所述杂芳基中杂原子任选自氧原子、硫原子或氮原子。
2.根据权利要求1所述的有机化合物，其特征在于，所述C6-30芳基为苯基、萘基、蒽基、菲基、芘基、二联苯基、三联苯基、二甲基芴基或二苯基芴基；
所述C2-30杂芳基为吡啶基、萘啶基、二苯并呋喃基、二苯并噻吩基、咔唑基或氮杂咔唑基；
所述C1-10烷基为甲基、乙基、丙基、异丙基或叔丁基。
3.根据权利要求1所述的有机化合物，其特征在于，所述R3-R5分别独立地表示为甲基、乙基、丙基、异丙基、叔丁基、戊基、取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种；R6表示为氢原子、甲基、乙基、丙基、异丙基、叔丁基、戊基、取代或未取代的苯基、取代或未取代的萘基、取代或未取代的萘啶基、取代或未取代的吡啶基、取代或未取代的二联苯基、取代或未取代的三联苯基、取代或未取代的二甲基芴基、取代或未取代的二苯基芴基、取代或未取代的咔唑基、取代或未取代的二苯并呋喃基、取代或未取代的二苯并噻吩基、取代或未取代的氮杂咔唑基中的任一种。
4.根据权利要求1-3任一项所述的有机化合物，其特征在于，所述取代用的基团任选自甲基、乙基、丙基、异丙基、叔丁基、戊基、苯基、萘基、萘啶基、二联苯基、三联苯基、呋喃基、二苯并呋喃基、咔唑基或吡啶基中的一种或几种。
5.一种含有螺芴衍生物的有机化合物，其特征在于，所述含有螺芴衍生物的有机化合物为具有以下结构之一的化合物：
6.一种有机电致发光器件，包括阳极、阴极和有机功能层，所述有机功能层位于所述阴极和阳极之间，其特征在于，所述有机功能层含有权利要求1-5任一项所述的含有螺芴衍生物的有机化合物。
7.根据权利要求6所述的有机电致发光器件，其特征在于，所述有机功能层包括发光层、空穴阻挡层、电子传输层中的至少一种。
8.一种显示面板，其特征在于，包括如权利要求6或7所述的有机电致发光器件。
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