Non-doped organic light-emitting diodes based on phenanthroimidazole-triphenylamine derivatives with a low efficiency roll-off of 9% at a high luminance of 10 000 cd m<sup>−2</sup>
Chunya Du, Futong Liu, Hui Liu, Xin He, Dongyan Jiang, Zijun Feng, Lei Gao, Ping Lü
Abstract
The “hot exciton” material TPPI-BZPCN is successfully achieved by fine-tuning the T<sub>1</sub> features of acceptor. The non-doped device based on TPPI-BZPCN exhibits a maximum EQE of 3.33%, and remains 3.03% at a high luminescence of 10 000 cd m<sup>−2</sup>.
Topics & Concepts
Materials scienceTriphenylamineOLEDDopingOptoelectronicsExcitonLuminescenceAcceptorDiodePhotochemistryLuminanceFluorescenceOpticsNanotechnologyPhysicsChemistryLayer (electronics)Quantum mechanicsCondensed matter physicsOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsOrganic Electronics and Photovoltaics