| 摘要 |
An organic Light-emitting device having a light-emitting layer comprising a light-emitting polymer, and an electron-transporting layer on the light-emitting layer and comprising an electron-transporting material, wherein the glass transition temperatures, measured in degrees Celsius, of the electron-transporting material (Tg(ETM)) and the light-emitting polymer (Tg(LEP)) satisfy the following inequality: Tg(ETM) + Tg(LEP) > 27O and wherein the glass transition temperature of the electron-transporting material is greater than 140 degrees Celsius. The device may comprise a polymer light-emitting layer and a non-polymeric (small-molecule) electron-transporting layer deposited on the light-emitting layer, the electron-transporting layer comprising a blend of electron-transporting materials containing small-molecule hosts and electron-donating materials containing small-molecule dopants. |
