| 摘要 |
<p>The present invention relates to an organic light emitting device, including a light emitting layer with a light-emitting polymer, and an electron transporting layer with an electron transporting material on the light emitting layer where the glass transition temperatures of the electron transporting material (Tg(ETM)) measured in degrees Celsius, and the glass transition temperatures of the light-emitting polymer (Tg(LEP)) satisfy the following inequality: Tg(ETM) + Tg(LEP) > 270, wherein the Tg(ETM) is greater than 140 degrees Celsius. The device may include a polymer light-emitting layer and a non-polymeric (small molecule) include electron-transporting layer deposited on the light emitting layer, wherein the electron-transporting layer may include a blend of an electron transporting material with small molecule carriers and electron donating materials with small molecule dopant.</p> |
