利用锂喹啉配合物(8-hydroxy-quinolinato lithium,Liq)作电子注入层,制备了结构为氧化铟锡/锂喹啉配合物/铝{ITO(indium tin oxide)/TPD(N,N′-di-phenyl-N,N′-bis(3-methylphenyl)-1,1′biphenyl-4,4′diamine)/Alq3[tris-(8-hydroxy-quinolinato)aluminum]/Liq/Al}的电致发光器件。通过改变电子注入层Liq的厚度,考查了Liq厚度对器件电致发