Under the circumstances ofdoping with mass 1.5%(wt) of the rubrene in DPVBi, whenchanging the thickness of doped layer, the luminance, the effi-ciency and the CIE coordinates of the devices are to have anobvious change.

• 在掺杂浓度为1.；5%25(wt)左右的情况下；当改变掺杂层的总的厚度时；器件的亮度、效率和色坐标都有明显的改变。