Fluorescent Blue Materials for Efficient Organic Light-Emitting Diode with High Color Purity

Bulletin of the Korean chemical society

Chanhyo Lee¹  Seung Uk Son¹  Kwan Hee Lee¹  Jong-In Hong¹  Kyungsun Choi¹  Su Jin Park¹  Young Keun Chung¹ 

关键词: Organic light-emitting diode;    Electroluminescence;    Fluorescent blue materials;    Dopants;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We report a new series of blue dopants composed of both electron donating and electron accepting moieties in one molecule, based on nalidixic acid. The EL device derived from the dopant exhibits pure blue light emission (0.15, 0.14) The current efficiency is estimated to be 3.88 cd/A at 100 cd/m2, which shows remarkable enhancement, compared to that of the host itself (2.5 cd/A at 100 cd/m2) under the same conditions. These results demonstrate that the incorporation of a proper guest into the host in a guest-host doped system improves not only the purity of the fluorescent blue emission but also elevates its quantum efficiency, thus improving the OLED performance.

【 授权许可】

Unknown