首页>
外国专利>
Emissive transition-metal complexes with both carbon-phosphorus ancillary and chromophoric chelates, synthetic method of preparing the same and phosphorescent organic light emitting diode thereof
Emissive transition-metal complexes with both carbon-phosphorus ancillary and chromophoric chelates, synthetic method of preparing the same and phosphorescent organic light emitting diode thereof
展开▼
机译:具有碳-磷辅助和发色螯合物的发光过渡金属配合物,其合成方法及其磷光有机发光二极管
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical carbon-nitrogen (C^N) or nitrogen-nitrogen (N^N) chromophoric ligands being incorporated into a coordination sphere thereof with a transition metal, and one carbon-phosphorus (C^P) chelate being incorporated into the coordination sphere; or ii) one carbon-nitrogen (C^N) or nitrogen-nitrogen (N^N) chromophoric ligand forming a coordination sphere thereof with a transition metal, and two identical carbon-phosphorus (C^P) chelates being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the chromophoric ligands possess a relatively lower energy gap in comparison with that of the non-chromophoric chelate, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that bright phosphorescence can be observed. The architecture and energy gap of the present molecular designs are suitable for generation of high efficiency blue, green and even red emissions.
展开▼