基于新型螺氧杂蒽主体的高效蓝色磷光有机发光二极管

引用本文: 关玉巧, 陈钢, 宋娟, 汪成新, 钱妍, 章琴, 邓玲玲, 冯增勤, 尚文娟, 陶友田, 陈淑芬, 汪联辉, 黄维. 基于新型螺氧杂蒽主体的高效蓝色磷光有机发光二极管[J]. 物理化学学报, 2017, 33(4): 816-822. doi: 10.3866/PKU.WHXB201612223 shu

Citation: GUAN Yu-Qiao, CHEN Gang, SONG Juan, WANG Cheng-Xin, QIAN Yan, ZHANG Qin, DENG Ling-Ling, FENG Zeng-Qin, SHANG Wen-Juan, TAO You-Tian, CHEN Shu-Fen, WANG Lian-Hui, HUANG Wei. One-Step Synthesized Novel Spiro[fluorene-9,9'-xanthene]-Based Materials as Highly Efficient Blue Phosphorescent Hosts in Organic Light-Emitting Devices[J]. Acta Physico-Chimica Sinica, 2017, 33(4): 816-822. doi: 10.3866/PKU.WHXB201612223 shu

基于新型螺氧杂蒽主体的高效蓝色磷光有机发光二极管

关玉巧 ^1, ,
陈钢 ^2, ,
宋娟 ^1, ,
汪成新 ^1, ,
钱妍 ^1, ,
章琴 ^1, ,
邓玲玲 ^2, ,
冯增勤 ^1, ,
尚文娟 ^1,3, ,
陶友田 ^4, ,
陈淑芬 ^1, ,
汪联辉 ^1, ,
黄维 ^1,4,

1.
南京邮电大学, 先进生物与化学制造协同创新中心, 有机电子与信息显示国家重点实验室培育基地, 南京 210023;
2.
南京邮电大学光电工程学院, 南京 210023;
3.
吉林大学, 电子科学与工程学院, 集成光电子国家重点联合实验室, 长春 130012;
4.
南京工业大学, 先进生物与化学制造协同创新中心, 柔性电子重点实验室, 南京 211816
基金项目:
国家重点基础研究发展规划项目（973）（2015CB932202，2012CB933301），国家自然科学基金（61274065，51173081，61136003，BZ2010043，21373114，21573111，21003076，6150508，21304047），江苏省杰出青年科学基金（BK20160039），教育部创新团队（IRT1148），江苏省自然科学基金（BM2012010，BK20141424），江苏高校优势学科建设工程项目（YX030001），江苏省普通高校研究生实践创新项目（SJLX15_0390），南京邮电大学攀登项目（NY214085）及吉林大学开放课题（IOSKL2015KF32）资助

摘要: 我们以钯为催化剂、通过一步交联耦合反应合成了一系列以螺[芴-9，9'-氧杂蒽]（SFX）为基本构建单元的新型主体材料，这些材料具有较高的三线态能级和产率，可用作蓝色磷光材料的主体。接着，以这些材料和空穴传输型材料TAPC 作为双主体、以FIrpic 为发光客体，制作了蓝色磷光有机发光器件（PHOLED）。SFX主体材料可以向FIrpic 提供有效的能量转移，而TAPC可以提高发光层的空穴迁移率、同时降低器件工作电压，因此我们制备的蓝色发光器件具有良好的性能。其中，以TAPC：PF-SFX和TAPC：C8OPF-SFX为双主体的两个PHOLED，最大电流效率和亮度分别达到22.56、25.93 cd·A^-1和6421、6196 cd·m^-2。上述实验结果表明，只存在C、H、O时，SFX是构建高效蓝色磷光主体材料的有效结构单元。

关键词:

English

One-Step Synthesized Novel Spiro[fluorene-9,9'-xanthene]-Based Materials as Highly Efficient Blue Phosphorescent Hosts in Organic Light-Emitting Devices

1.
Key Laboratory for Organic Electronics and Information Displays and Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China;
2.
School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China;
3.
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China;
4.
Key Laboratory of Flexible Electronics and National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
Received Date: 31 October 2016
Revised Date: 22 December 2016
Available Online: 22 December 2016
Fund Project:
The project was supported by the National Key Basic Research Program of China (973) (2015CB932202, 2012CB933301), National Natural Science Foundation of China (61274065, 51173081, 61136003, BZ2010043, 21373114, 21573111, 21003076, 61505086, 21304047), Science Fund for Distinguished Young Scholars of Jiangsu Province, China (BK20160039), Ministry of Education of China (IRT1148), Natural Science Foundation of Jiangsu Province, China (BM2012010, BK20141424), Priority Academic Program Development of Jiangsu Provincial Higher Education Institutions, China (YX030001), Ordinary University Graduate Student Practical Innovation Projects of Jiangsu Province, China (SJLX15_0390), Pandeng Project of Nanjing University of Posts and Telecommunications, China (NY214085), and Open Foundation from Jilin University, China (IOSKL2015KF32).

Abstract: We synthesized a series of novel spiro[fluorene-9,9'-xanthene] (SFX)-based host materials via a one-step palladium-catalyzed cross-coupling reaction. These materials have high triple energy levels and high yield, and thus can be used as hosts for blue phosphors. Blue phosphorescent organic light-emitting devices (PHOLEDs) with a bis(3,5-difluoro-2-(2-pyridyl)phenyl-(2-carboxypyri-dyl)iridium(III) (FIrpic) emission were fabricated. Furthermore, we applied cohosts composed of one of the new synthesized materials and the hole transport material di-[4-(N,N-ditolyl-amino)-phenyl]cyclohexane (TAPC) to the blue PHOLEDs to successfully acquire efficient blue emissions. The SFX-based material provided efficient energy transfer while TAPC improved the mobility of the cohost as well as reduced the working voltage. Maximum current efficiencies of 22.56 and 25.93 cd·A^-1 and the maximum brightnesses of 6421 and 6196 cd·m^-2 were obtained for the PHOLEDs with TAPC: 2-(9-phenyl-fluoren-9-yl)spiro[fluorene-9,9'-xanthene] (PF-SFX) and TAPC: 2-(9-(4-(octyloxy)-phenyl)-9H-fluoren-9-yl)spiro[fluorene-9,9'-xanthene] (C8OPF-SFX) cohosts, respectively. The experimental results obtained for the four SFX-based host materials were enough to declare that SFX is an effective main unit that can be used to build efficient host materials for blue phosphors containing only C, H, and O basic elements.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

基于新型螺氧杂蒽主体的高效蓝色磷光有机发光二极管

English

One-Step Synthesized Novel Spiro[fluorene-9,9'-xanthene]-Based Materials as Highly Efficient Blue Phosphorescent Hosts in Organic Light-Emitting Devices

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

基于新型螺氧杂蒽主体的高效蓝色磷光有机发光二极管

English

One-Step Synthesized Novel Spiro[fluorene-9,9'-xanthene]-Based Materials as Highly Efficient Blue Phosphorescent Hosts in Organic Light-Emitting Devices

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs