Maheshwaran, Athithan; Park, Ho-Yeol; Choi, Jungmin; Sung, Kyungmin; Do, Yeongju; Park, Hyungjin; Kim, Hyein; Song, Myungkwan; Jin, Sung-Ho published an article about the compound: 4-Hydroxypicolinic acid( cas:22468-26-4,SMILESS:O=C(O)C1=NC=CC(O)=C1 ).Product Details of 22468-26-4. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:22468-26-4) through the article.
Two new highly efficient green emitting heteroleptic Ir(III) complexes, namely, bis[5-(2-ethylhexyl)-8-(trifluoromethyl)benzo[c][1,5]naphthyridin-6(5H)-one]iridium-4-((3,5-di(9H-carbazol-9-yl)benzyl)oxy)picolinate (Ir-HT) and bis[5-(2-ethylhexyl)-8-(trifluoromethyl) benzo[c][1,5]naphthayridin-6(5H)-one]iridium-4-((4-(5-phenyl-1,3,4-oxadiazol-2-yl)benzyl) oxy)picolinate (Ir-ET) were designed and synthesized for solution-processed phosphorescence organic light-emitting diodes (PHOLEDs). These new Ir(III) complexes are based on amide-bridged trifluoromethyl (-CF3) substituted phenylpyridine unit as main ligand and 1,3-bis(N-carbazolyl)benzene (mCP) unit and 1,3,4-oxadiazole (OXD) unit functionalized picolinate (pic) as an ancillary ligand. These multifunctional groups were attached into the 4-position of pic ancillary ligands via ether linkage. Interestingly, the solution-processed PHOLED device using Ir-HT as a dopant exhibited a maximum external quantum efficiency (EQEmax) of 20.92% and a maximum current efficiency (CEmax) of 64.04 cd A-1. Whereas PHOLED device using Ir-ET displayed a EQEmax of 20.68% and a CEmax of 65.02 cd A-1. This is one of best CE with high EQE for green Ir(III) complexes via solution-processed PHOLEDs using multifunctional ancillary ligands so far.
《Green Ir(III) complexes with multifunctional ancillary ligands for highly efficient solution-processed phosphorescence organic light-emitting diodes with high current efficiency》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(4-Hydroxypicolinic acid)Product Details of 22468-26-4.