| 摘要 |
An organic light emitting device comprising: (i) a first electrode; (ii) a region comprising a mixture of (1) a tertiary aromatic amine, (2) a metal oxinoid, and (3) a red emitting material represented by <CHEM> wherein X is a carbon C atom or a nitrogen N atom or optionally oxygen or sulfur; R1, R2 and R3 are each independently selected from the group consisiting of hydrogen, alkyl, substituted alkyl, aryl, and substituted aryl; M is a divalent, trivalent or tetravalent metal; (iii) a second electrode; (iv) an optional protective element coated on at least one of the first and second electrodes, wherein one of said first and second electrodes is a hole injection anode, and one of said electrodes is an electron injection cathode; and at least one of (v) a hole transport region situated between the anode and the region (ii), and wherein the hole transport region optionally includes a buffer layer; and (vi) an electron transport region situated between the cathode and the region (ii), and wherein said red emitting component is present in an amount of from 1 to about 40 weight percent based on total weights of components in region (ii). <IMAGE> |
