Phenanthro[9,10-d]imidazole as a new building block for blue light emitting materials

被引：230

作者：

Wang, Zhiming ^{[1
]}

Lu, Ping ^{[1
]}

Chen, Shuming ^{[2
]}

Gao, Zhao ^{[1
]}

Shen, Fangzhong ^{[1
]}

Zhang, Wensi ^{[1
]}

Xu, Yuanxiang ^{[1
]}

Kwok, Hoi Sing ^{[2
]}

Ma, Yuguang ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

[2] Hong Kong Univ Sci & Technol, Ctr Display Res, Inst Mol Funct Mat, Dept Chem, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 14期

基金：

美国国家科学基金会;

关键词：

PHOSPHORESCENT OLEDS; DIODES; EFFICIENT;

D O I：

10.1039/c1jm10321k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The blue light emitting compound, BPPI, based on a phenanthro[9,10-d]imidazole group, is prepared by a facial synthetic process and exhibits excellent thermal stability, highly efficient fluorescence and balanced carrier injection. The double-layered device based on BPPI shows a higher maximum luminance and a lower turn-on voltage than the multi-layered one with an independent electron injection layer. The results suggest that the phenanthroimidazole unit is an excellent building block for tuning the carrier injection properties as well as blue emission.

引用

页码：5451 / 5456

页数：6

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