苯基取代聚苯撑乙烯的合成及其电致发光性能.pdf

物理化学学报( Wuli Huaxue Xuebao)
1188
Acta Phys. -Chim. Sin. 2011, 27(5), 1188-1194
a
Article
www.whxb.pku.edu.cn
苯基取代聚苯撑乙烯的合成及其电致发光性能
莫越奇1常学义2胡苏军韩绍虎吴宏滨彭俊彪
(华南理工大学材料科学与工程学院,广州510640;广州砺剑光电材料科技有限公司,广州510730
华南理工大学高分子光电材料及器件研究所,广州510640)
摘要:聚苯撑乙烯(PPV)类聚合物是优异的发光材料,有望作为全色显示中三基色的材料之一得到应用.我们
米用2-溴-1,4-亚二甲苯二乙酯为原料,合成了商品名为 Supper Yellow PPV( SY PPV)的苯基取代PPV.中间
体、单体和聚合物的结构都通过核磁共振、元素分析进行了表征. SY PPV的吸收峰在434nm,吸收边在510
nm,带隙2.44eV.光致发光峰值和电致发光峰值分别在516和552nm. SY PPV的器件性能为:启动电压为
2.4V,最大亮度大于49000cd·m2,最大流明效率为21cdA-1,显著优于采用老方法合成 SY PPV的最大流明
效率(16-18cdA-)
关键词:聚苯撑乙烯;苯基取代聚苯撑乙烯;绿色发光聚合物;聚合物发光二极管;电致发光
中图分类号:O644
Synthesis and Electroluminescent Properties of Phenyl-substituted
Poly(phenylenevinylene
MO Yue-qi. CHANG Xue-yi? HU Su-jun HAN Shao-hu
WU Hong-bin PENG Jun-biao
(Key Laboratory of Special Functional Materials, South China University of Technology, Guangzhou 510640, P R. China,
Canton Oledking Optoelectronic Materials Co, Ltd, Guangzhou 510730, P R. China; nstitute of Polymer Optoelectronic
Materials and Devices, South China University of Technology. Guangzhou 510640, P R China)
Abstract: Poly(phenylenevinylene)( PPV) is one of the most efficient electroluminescent conjugated
polymers and has the potential to be commercialized as important components in full-color flat pan
displays. Here, we report an alternative synthetic route to the commercially available PPV derivative Super
ellow PPV (SY PPV)using 2-bromo-1 4-xylylene diacetate as a novel starting material. The intermediates
onomers, and the polymer were fully characterized by nuclear magnetic resonance(NMR)and elemental
analysis. The SY PPV film shows an absorption maximum at 434 nm and an absorption onset at 510 m
with an optical banda of ca 2.44 ev. The photoluminescent and electroluminescent maximum of SY PPV
are around 516 and 552 nm, respectively. The SY PPV obtained via this new synthetic route exhibits
improved electroluminescent properties, a turn on voltage of over 2.4 V, a luminance maximum exceeding
49000 cd. m", and a maximum luminous efficiency( LE)of 21 cd.A compared with the SY PPV prepared
by the traditional route(16-18 cd.A)
Key Words: Polyphenylenevinylene Phenyl-substituted polyphen lenevin lene Green light emitting
polymer; Polymer light-emitting device; Electroluminescence
Received: November 25, 2010; Revised: March 15, 2011; Published on Web: April 15, 2011
Yue-qi, Email
The project was supported by the National Natural Science Foundation of hina(20674021) and the Specialized Research Fund for the Doctoral
Program of Higher Education, China (20090172120012
国家自然科学基金(20674021)和高等学校博士学科点专项科研基金新教师基金课题(20090172120012)资助项目
ce of Acta Physico-chimica Si