Patent ID: 6344285
Filing Date: 2002-02-05
Classification: H01L,Y10S

Abstract:
An organic electroluminescence (EL) device comprising an electron transport layer formed between a pair of electrodes, wherein the electron transport layer comprises about 50-99.9 wt % of alcohol-soluble polymer selected from the group consisting of polyvinylpyrrolidone, polyvinylpyridine, polyethyleneoxide, lithium and sodium salts of polystyrene sulfonic acid containing about 0.01-50% of average ion per repeating unit, and lithium and sodium salts of perfluorinated ion exchange powder, and about 0.1-50 wt % of electron transporting material selected from the group consisting of lithium trifluoromethanesulfonate (LiCF3SO3), lithium perchlorate (LiClO4), lithium tetrafluoraborate (LiBF4), lithium hexafluorophosphate (LiPF6), and lithium bistrifluoromethanesulfonylamide (LiN(CF3SO2)2).