Silicon-based hybrid solar cells (HSCs), especially PEDOT:PSS/Si HSC, have attracted the interest of researchers because they combine the advantages of organic and inorganic materials. A high quality PEDOT:PSS/Si heterojunction is the key to the good performance of PEDOT:PSS/Si HSC. However, as generally requisite to enhance light absorption for HSCs, Si Micro/Nano structures will reduce the interface contact quality between PEDOT:PSS and Si surface. The inferior interface contact quality will limit the separation efficiency of the photogenerated carriers. In this paper, we summarize the research progress in improving the interface contact between Si Micro/Nano structures and PEDOT:PSS film from three aspects: the optimization of Si Micro/Nano structures aimed to improve the fluid properties of PEDOT:PSS solution, the material modification of PEDOT:PSS and interface modification with the purpose to enlarge the heterojunction area and improve the electrical contact, and the specific deposition process of PEDOT:PSS solution developed to achieve the high filling rate of PEDOT:PSS on Si Micro/Nano structures. The insight of this paper is helpful for the preparation of high-quality heterojunction, which is vitally important for the development of high efficiency PEDOT:PSS/Si HSCs.

硅基混合太阳能电池 (HSC)，尤其是 PEDOT:PSS/Si HSC，因其结合了有机和无机材料的优点而引起了研究人员的兴趣。高质量的 PEDOT:PSS/Si 异质结是 PEDOT:PSS/Si HSC 良好性能的关键。然而，作为增强 HSC 光吸收的必要条件，Si 微/纳米结构会降低 PEDOT:PSS 和 Si 表面之间的界面接触质量。较差的界面接触质量将限制光生载流子的分离效率。在本文中，我们从三个方面总结了改善硅微/纳米结构与PEDOT:PSS薄膜界面接触的研究进展：硅微/纳米结构的优化旨在提高PEDOT:PSS溶液的流体性能，PEDOT:PSS的材料改性和界面改性，旨在扩大异质结面积和改善电接触，开发了PEDOT:PSS溶液的特定沉积工艺，实现了硅微/纳米上PEDOT:PSS的高填充率结构。本文的见解有助于制备高质量的异质结，这对开发高效 PEDOT:PSS/Si HSC 至关重要。