Extremely superb efficiency and lifetime of deep blue phosphorescent OLEDs by introducing a hypsochromic emissive intermolecular complex (HEIC) with a negligibly small Δ<i>E</i><sub>ST</sub> and fast reverse intersystem crossing rate
Ki Ju Kim, Kyo Min Hwang, Hakjun Lee, Sunwoo Kang, Soo‐Byung Ko, Min‐Sik Eum, Young Kwan Kim, Taekyung Kim
Abstract
Concept of a hypsochromic emissive intermolecular complex (HEIC) compared with the conventional exciplex and electroplex. A mixed host system with HEIC exhibits blue-shifted electroluminescence as well as photoluminescence.
Topics & Concepts
Hypsochromic shiftIntersystem crossingMaterials scienceIntermolecular forcePhotoluminescenceElectroluminescenceExcimerPhosphorescencePhotochemistryOLEDOptoelectronicsExcitonFluorescenceSinglet stateNanotechnologyMoleculeChemistryOpticsPhysicsExcited stateQuantum mechanicsNuclear physicsLayer (electronics)Organic chemistryOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsOrganic Electronics and Photovoltaics