Nanostructured ZrO2–Y2O3-Based System for Perovskite Solar Cells

Abstract

ZrO₂/Y₂O₃ nanoparticles containing 0, 3, and 10 mol % Y₂O₃ were synthesized under hydrothermal conditions. The structural and optoelectronic properties of the nanoparticles were studied using appropriate measurement techniques. From the synthesized ZrO₂–Y₂O₃ nanostructured systems, electron-conductive thin-film photoelectrodes were fabricated and used to develop perovskite solar cells (PSCs) with the device configuration glass/FTO/ZrO₂–Y₂O₃/CH₃NH₃PbI₃/Spiro-MeO-TAD/Au. Comparative study of the PSC photovoltaic characteristics under 1000 W/m² illumination (AM1.5G) has shown that the devices based on ZrO₂–Y₂O₃ photoelectrodes exhibit a higher power conversion efficiency than the PSC based on undoped ZrO₂ photoelectrodes.