High efficiency and low efficiency roll-off hole-transporting layer-free solution-processed fluorescent NIR-OLEDs based on oligothiophene–benzothiadiazole derivatives

• DOI: 10.1039/d0tc00450b
• Publication Date: 2020-03-12T03:03:20Z
• Authors: Taweesak Sudyoadsuk; Pongsakorn Chasing; Terdkait Kaewpuang; Thanaporn Manyum; Chaiyon Chaiwai; Supawadee Namuangruk; Vinich Promarak
• Keywords: Quantum Efficiency; Solution process

Two D–A–D type emitters exhibited superior simple hole-transporting free solution-processed OLEDs with maximum EQE of 1.52%, low efficiency roll-off and radiance 4463 mW Sr⁻¹ m⁻², which is one the best NIR-OLEDs.