Red to near-infrared electrophosphorescence from an iridium complex coordinated with 2-phenylpyridine and 8-hydroxyquinoline
作者： Chun Yi , Chang-Jian Yang , Jian Liu , Min Xu , Jiang-Huai Wang
DOI: 10.1016/J.ICA.2007.04.017
关键词: Crystal structure 、 2-Phenylpyridine 、 Bathochromic shift 、 Iridium 、 Fluorescence 、 Excited state 、 Phosphorescence 、 Chemistry 、 Photoluminescence 、 Photochemistry
摘要: Abstract An iridium complex coordinated with 2-phenylpyridine (ppy) and 8-hydroxyquinoline (q), ppy2Irq, was synthesized its thermal stability, absorption, photoluminescence, crystal structure electrophosphorescence were characterized. The melting point of this material reaches as high 374 °C does not suffer decomposition upon heating at vacuum therefore can be well sublimated. When ppy2Irq used a guest emitting in the electrophosphorescent device, emission is 100% saturated red light starting ∼600 nm, extending into near-infrared region. bathochromic shift, compared to fluorescence phosphorescence from Alq3, Ptq2 Ir(ppy)3, analyzed originate triplet excited state ligand analysis excludes origin π–π intermolecular interactions.
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