| 摘要 |
<p>An organic electroluminescent device comprises an anode, a positive-hole transport layer made of an organic compound, an emitting layer made of an organic compound, an electron transport layer made of an organic compound, an electron-injecting layer and a cathode which are layered in sequence. The electron-injecting layer is made of an alkaline metal compound comprising at least one of Li, Rb, Cs, Na and K including alkaline metal oxides, alkaline metal peroxides, alkaline metal compound oxides, alkaline metal halides, alkaline metal nitride and alkaline metal salt such as Li2O, Li2O2, Rb2O, Cs2O, Rb2O2, Cs2O2, LiAlO2, LiBO2, LiCl, RbCl, NaCl, KAlO2, Na2WO4, K2SiO3 and Li2CO3. <IMAGE></p> |
