Presentation Information
[2P10]Precise control of the Fe3O4 nanoparticle layer for enhancing the performance of solar cells
*Genki Hashimoto1, Tomoko K Shimizu1 (1. Department of Applied Physics and Physico-Informatics, Faculty of Science and Technology, Keio University, Yokohama, Kanagawa, 223-8522, Japan)
This study explores the use of Langmuir troughs for controlling the morphology of Fe3O4 nanoparticle layers as hole transport layers (HTLs) in perovskite solar cells (PSCs). Fe3O4 nanoparticles were deposited onto indium tin oxide (ITO) substrates, and their morphology was characterized using atomic force microscopy (AFM), scanning electron microscopy (SEM), and conductive AFM (C-AFM). AFM revealed a low-density, island-like structure, while SEM showed densely packed nanoparticles within each island. C-AFM measurements indicated lower current and higher resistance compared to the bare substrate, suggesting increased resistivity due to the nanoparticle layer. These results demonstrate the potential of Langmuir troughs for improving layer uniformity and device stability in PSCs.