1986 年，一种双层异质结的器件结构被柯达公司的邓青云博士提出，通过

1986 年，一种双层异质结的器件结构被柯达公司的邓青云博士提出，通过将 n <br>型四羧基苝的衍生物（PV）作为受体，将 p 型的酞菁铜（CuPc）作为给体，构建了双层结构的平面异质结薄膜，并以此制备出了能量转换效率约为 1%的 OSCs。[24] 如图 1-2b，与肖特基型电池相比，双层异质结型电池具有更高的激子解离效率，有效地减小了电荷传输过程中的复合，大幅提升了器件的光伏性能。研究人员们开始注意到决定光伏性能的关键是来源于给受体之间的界面，而不是电极和活性层之间的界面，该工作引起了研究人员们对有机光伏的研究兴趣

In 1986, a double-layer heterojunction device structure was proposed by Dr. Deng Qingyun of Kodak Company, by combining n<br>A derivative of type tetracarboxyperylene (PV) was used as a receptor, and p-type copper phthalocyanine (CuPc) was used as a donor to construct a bilayer planar heterojunction film. Based on this, OSCs with an energy conversion efficiency of about 1% were prepared. [24] As shown in Figure 1-2b, compared with Schottky type batteries, double-layer heterojunction type batteries have higher exciton dissociation efficiency, effectively reducing recombination during charge transfer, and significantly improving the photovoltaic performance of the device. Researchers have begun to notice that the key to determining photovoltaic performance comes from the interface between the donor and acceptor, rather than the interface between the electrode and the active layer. This work has sparked researchers' interest in organic photovoltaics research

In 1986, a device structure of double-layer heterojunction was proposed by Dr. Deng Qingyun of Kodak Company. By adding N<br> A planar heterojunction thin film with a double-layer structure was constructed by using the derivative (PV) of type I tetracarboxylic perylene as acceptor and copper phthalocyanine (CuPc) as donor, and OSCs with energy conversion efficiency of about 1% was prepared. [24] As shown in Figure 1-2b, compared with Schottky battery, the double-layer heterojunction battery has higher exciton dissociation efficiency, effectively reduces recombination in the process of charge transfer, and greatly improves the photovoltaic performance of the device. Researchers began to notice that the key to determine photovoltaic performance comes from the interface between donor and acceptor, rather than the interface between electrode and active layer, which aroused researchers' interest in organic photovoltaic research.