High-efficiency quantum-dot light-emitting diodes enabled by boosting the hole injection

Authors :: Chunyan Cheng
Aqiang Liu
Guohang Ba
Ivan S. Mukhin
Fei Huang
Regina M. Islamova
Wallace C. H. Choy
Jianjun Tian
Source :: Journal of Materials Chemistry C. 10:15200-15206
Publication Year :: 2022
Publisher :: Royal Society of Chemistry (RSC), 2022.
Abstract: We devise a high-carrier-mobility hole-transport layer with less hole loss, obtained via doping poly(9-vinylcarbazole) into poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-(4,4′-(N-(4-butylphenyl)))], achieving high external quantum efficiency QLEDs (22.7%).

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