Solution-Processed Inorganic-Organic Hybrid Electron Injection Layer for Polymer Light-Emitting Devices

被引：57
作者：
Chiba, Takayuki [2 ]
Pu, Yong-Jin [1 ,2 ]
Hirasawa, Masakatsu [2 ]
Masuhara, Akito [2 ]
Sasabe, Hisahiro [1 ,2 ]
Kido, Junji [1 ,2 ]
机构：
[1] Yamagata Univ, Dept Organ Device Engn, Yonezawa, Yamagata 9928510, Japan
[2] Yamagata Univ, Res Ctr Organ Elect, Yonezawa, Yamagata 9928510, Japan
来源：
ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 11期
基金：
日本科学技术振兴机构;
关键词：
polymer light-emitting device; solution process; electron injection; lithium quinolate; ZnO nanoparticles; inorganic-organic hybrid; METAL-OXIDE; DIODES; INTERFACE; COMPLEXES; CATHODE;
D O I：
10.1021/am301732m
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A lithium quinolate complex (Liq) has high solubility in polar solvents such as alcohols and can be spin-coated onto emitting polymers, resulting in a smooth surface morphology. A polymer light-emitting device fabricated with spin-coated Liq as an electron injection layer (EIL) exhibited a lower turn-on voltage and a higher efficiency than a device with spin-coated Cs2CO3 and a device with thermally evaporated Ca. The mixture of ZnO nanoparticles and Liq served as an efficient EIL, resulting in a lower driving voltage even in thick films (similar to 10 nm), and it did not require a high-temperature annealing process.
引用
收藏
页码：6104 / 6108
页数：5
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