Linear-shaped thermally activated delayed fluorescence emitter using 1,5-naphthyridine as an electron acceptor for efficient light extraction

被引：13

作者：

Lee, Youngnam ^{[1
]}

Woo, Seung-Je ^{[2
]}

Kim, Jang-Joo ^{[2
]}

Hong, Jong-In ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Chem, Seoul 08826, South Korea

[2] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 08826, South Korea

来源：

ORGANIC ELECTRONICS | 2020年 / 78卷

关键词：

Organic light emitting diode; Thermally activated delayed fluorescence; Light out coupling efficiency; Emitting dipole orientation; Naphthyridine; PHOTOPHYSICAL PROPERTIES; DIODES; ORIENTATION; HOST;

D O I：

10.1016/j.orgel.2019.105600

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, we developed a donor-pi-acceptor-pi-donor-type thermally activated delayed fluorescence (TADF) emitter (NyDPAc) using 1,5-naphthyridine as a core moiety. NyDPAc exhibited a high horizontal dipole ratio and thus a high external quantum efficiency (20.9%) even at a relatively low photoluminescence quantum yield (57%). 1,5-naphthyridine as an electron acceptor represents a promising core moiety for efficient TADF materials.

引用

页数：6

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