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Updated: Mar 24, 2026

Production and Characterization of Vacuum Deposited Organic Light Emitting Diodes
Published on: November 16, 2018
3D-Encapsulated iridium-complexed nanophosphors for highly efficient host-free organic light-emitting diodes
Fuquan Han1, Xiaolin Zhang, Jing Zhang
1Key Laboratory of Functional Inorganic Material Chemistry, School of Chemistry and Materials, Heilongjiang University, Ministry of Education, Harbin 150080, China. hxu@hlju.edu.cn.
Abstract:
Iridium-complexed nanosize phosphors 3D-encapsulated with nine 3,6-di-tert-butyl-N-propyl-carbazole groups were constructed as host-dopant integrated systems, which achieved a high photoluminescence quantum yield beyond 70% from neat evaporated films, and an electroluminescence external quantum efficiency up to ∼8.5% and near-zero roll-offs at 1000 cd m(-2) from its dual-layer host-free light-emitting diodes.

