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研究了有机光伏器件的激子阻挡层(EBL)的工作机制,对于像bathocuproine(BCP)和bathophenanthroline(Bphen)这样的电子阻挡层,主要利用的是他们的强的电子传输能力。而像copper phthalocyanine(CuPc)作为电子阻挡层则可利用它大的空穴传输能力和较低的HOMO能级。我们还发现当CuPc厚度为10～30nm时,CuPc表现出比BCP和Bphen高的EB特性。文中还较为详细地叙述了CuPc作为电子阻挡层的运行机制。
The working mechanism of an exciton blocking layer (EBL) for organic photovoltaic devices is studied. For the electron blocking layers such as bathocuproine (BCP) and bathophenanthroline (Bphen), their strong electron-transporting ability is mainly utilized. And as copper phthalocyanine (CuPc) as an electron barrier layer can use its large hole transport capacity and lower HOMO level. We also found that CuPc exhibits higher EB properties than BCP and Bphen when the CuPc thickness is 10-30 nm. The paper also describes in more detail CuPc as an electron barrier layer operating mechanism.