Stability, as an important factor limiting the practical application of perovskite solar cells, has attracted many scientists. Herein, we introduce a hydrophobic molecule of thiosalicylic acid as a passivator to enhance the device stability. The strategy not only improves the thermal stability and anti-moisture of the perovskite film by double anchoring of functional groups to uncoordinated lead ions and the hydrophobicity of the aromatic ring, but also enhances the electronic properties by removing deep trap states of the perovskite film. Further research on the perovskite solar cells with thiosalicylic acid passivation shows that the efficiency of the device can reach 18.07% and good stability. When stored in the air with a relative humidity of 30% for 15 days, the efficiency can still maintain 89.98% of the initial value. The present work offers a simple and effective strategy in fabrication of stable and efficient perovskite solar cells.

作为限制钙钛矿太阳能电池实际应用的重要因素，稳定性吸引了许多科学家。在本文中，我们引入了硫代水杨酸的疏水分子作为钝化剂，以增强器件的稳定性。该策略不仅通过将官能团双锚定至未配位的铅离子和芳环的疏水性来改善钙钛矿膜的热稳定性和抗潮性，而且通过去除钙钛矿膜的深陷阱态来增强电子性能。对硫代水杨酸钝化钙钛矿型太阳能电池的进一步研究表明，该器件的效率可以达到18.07％，并且具有良好的稳定性。当在相对湿度为30％的空气中存储15天时，效率仍然可以保持初始值的89.98％。