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

被引：59

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

页码：6104 / 6108

页数：5

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