Abstract Ni,Ti-co-doped MoO2 nanoparticles with excellent moisture stability and improved conductivity are synthesized via solvothermal cracking process for hole transporting material (HTM) in metal halide perovskite solar cells (MHP SCs). The Ni,Ti-doped MoO2 has similar oxidation state with pristine MoO2, but has better reduction stability than the MoO2 due to the weaker electronegativity of Ni and Ti than the Mo. Accordingly, the Ni,Ti-co-doped MoO2 HTM based MHP SC has 18.1% of power conversion efficiency at 1 sun (100 mW/cm2) condition. In addition, the un-encapsulated Ni,Ti-co-doped MoO2 HTM based MHP SC has 12–13% degradation after stability test under 85 °C/60% relative humidity for 20 days.

中文翻译：

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Ni、Ti 共掺杂 MoO2 纳米粒子具有高稳定性和改进的导电性，可用于平面金属卤化物钙钛矿太阳能电池中的空穴传输材料

摘要 通过溶剂热裂解工艺合成了镍、钛共掺杂的 MoO2 纳米粒子，该纳米粒子具有优异的水分稳定性和更高的导电性，用于金属卤化物钙钛矿太阳能电池 (MHP SCs) 中的空穴传输材料 (HTM)。Ni,Ti 掺杂的 MoO2 与原始 MoO2 具有相似的氧化态，但由于 Ni 和 Ti 的电负性比 Mo 弱，因此具有比 MoO2 更好的还原稳定性。因此，Ni,Ti 共掺杂的 MoO2 HTM 基 MHP SC 在 1 sun (100 mW/cm2) 条件下具有 18.1% 的功率转换效率。此外，未封装的 Ni,Ti 共掺杂 MoO2 HTM 基 MHP SC 在 85°C/60% 相对湿度下稳定性测试 20 天后降解 12-13%。