沟道掺杂浓度提高，同样的界面态密度造成的漏极特性漂移增大。
The shift of drain current induced by same interface states density increases with the increase of channel do - ping density.
通过对器件活性层和电极界面进行修饰和采用不同溶剂、不同给受体掺杂比例、不同活性层厚度成膜等方法对器件进行优化并研究其与器件性能之间的关系；
In addition, the surface morphology of active composite layer and the interface modification between active layer and electrodes could also influence the power conversion efficiency of the solar cell.
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