[16p-Z18-1~11] 12.4 Organic light-emitting devices and organic transistors

▼ [16p-Z18-9] Multi-resonance green TADF emitters based on bridged diarylamine derivatives

〇(DC)Guanting Liu¹, Hisahiro Sasabe^1,2, Kengo Kumada¹, Junji Kido^1,2 (1.Dept. of Organic Device Engineering, Yamagata Univ., 2.Dept. of Organic Materials Science, Yamagata Univ.)

Keywords:Multiple resonance effect, TADF, Narrow full width at half maximum

Thermally Activated Delayed Fluorescence (TADF) organic EL devices that can achieve 100% internal quantum efficiency can achieve both low cost and high efficiency of organic EL 1). TADF materials that utilize multiple resonances can narrow the spectrum while maintaining high efficiency 2). In this study, we have developed new carbon and oxygen bridged multiple resonance TADF materials DMAc-BN and PXZ-BN. The PXZ-BN has achieved a maximum external quantum efficiency of 23.3% and a half-width of 47 nm.