Perovskite photoelectric device using fluorine-containing sulfonate interface modifier and preparation method thereof

The invention relates to a perovskite photoelectric technology, in particular to a perovskite photoelectric device using a fluorine-containing sulfonate interface modifier and a preparation method of the perovskite photoelectric device. The perovskite photoelectric device comprises a perovskite light absorption layer and an interface modification layer laminated on the perovskite light absorption layer. The interface modification layer is made of fluorobenzene sulfonate. The interface of the perovskite photoelectric device is processed through the fluorobenzene sulfonate, and the defect state at the interface in the perovskite photoelectric device can be effectively passivated, so that the photoelectric property of the device is improved, and the perovskite photoelectric device with high efficiency and high stability is realized. 本发明涉及钙钛矿光电技术，具体涉及使用含氟磺酸盐界面修饰剂的钙钛矿光电器件及制备方法。钙钛矿光电器件包括钙钛矿吸光层和层叠在所述钙钛矿吸光层上的界面修饰层；所述界面修饰层由氟代苯磺酸盐制成。通过氟代苯磺酸盐对钙钛矿光电器件的界面进行处理，可对钙钛矿光电器件中界面处的缺陷态进行有效钝化，从而提升器件的光电性能，实现高效率、高稳定性的钙钛矿光电器件。