Perovskites solar cells are gaining interest due to their attractive solar-to-electricity conversion efficiencies; however, they suffer from certain problems, such as suboptimal ion migration and stability issues. We report here on the inclusion of a phenyloxazolium salt (2-phenyl-3-methyloxazolium iodide) in perovskite solar cells based on methyl ammonium lead triiodide (MAPbI3 ). The fabricated solar cells not only displayed improved photovoltaic properties, but importantly the oxazolium cations can protect the perovskite layers from UV exposure as they down-convert electromagnetic irradiation; that is, the photons in the UV are absorbed and re-emitted at a different wavelength. The loading of 2-phenyl-3-methyloxazolium iodide in the perovskite precursor solution was optimized, the resulting perovskite films characterized, and the solar cells fabricated from them evaluated for their performance. Overall, this simple approach serves to optimize the performance parameters of perovskites films for solar cell applications.

中文翻译：

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恶唑鎓碘化物修饰的钙钛矿用于太阳能电池的制造。

钙钛矿太阳能电池因其具有诱人的太阳能转换效率而备受关注。然而，它们遭受某些问题，例如次优的离子迁移和稳定性问题。我们在此报告了基于甲基铵三碘化铅（MAPbI3）的钙钛矿太阳能电池中包含的苯基恶唑鎓盐（2-苯基-3-甲基恶唑鎓碘化物）。所制造的太阳能电池不仅显示出改善的光伏性能，而且重要的是，恶唑鎓阳离子可以保护钙钛矿层免于受到紫外线的照射，因为它们可以将电磁辐射下转换。也就是说，紫外线中的光子会以不同的波长吸收并重新发射。优化了钙钛矿前体溶液中碘化2-苯基-3-甲基恶唑鎓的负载量，得到的钙钛矿薄膜具有以下特点：并用它们制造的太阳能电池评估了它们的性能。总体而言，这种简单的方法可以优化钙钛矿薄膜在太阳能电池应用中的性能参数。