Molecular doped, color-tunable, high-mobility, emissive, organic semiconductors for light-emitting transistors

• DOI: 10.1126/sciadv.abp8775
• Publication Date: 2022-07-08T17:59:05Z
• Authors: Zhengsheng Qin; Can Gao; Haikuo Gao; Tianyu Wang; Huanli Dong; Wenping Hu
• Keywords: Organic semiconductor

Developing high-mobility emissive organic semiconductors with tunable colors is crucial for light-emitting transistors (OLETs), a pivotal component of integrated optoelectronic devices, but remains great challenge. Here, we demonstrate series color-tunable, high-mobility, emissive, via molecular doping semiconductor, 2,6-diphenylanthracene, as the host. The well-matched structures and sizes efficient energy transfer between host guest enable intrinsically high charge transport colors. High mobility highest value >2 cm 2 V −1 s strong emission photoluminescence quantum yield >15.8% are obtained these molecular-doped semiconductors. Last, large color gamut constructed OLETs up to 59% National Television System Committee standard, meanwhile an extremely current density approaching 326.4 kA −2 , showing potential full-color smart display, electrically pumped lasers other related logic circuitries.