[16p-K405-1~14] 12.5 Organic and hybrid solar cells

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[16p-K405-6] Fabrication and Evaluation of Formamidinium-Based Multiporous Layered Electrode Perovskite Solar Cells by Fully Non-Vacuum Process

〇(DC)Takaya Shioki¹, Shunsuke Oshita¹, Naonari Izumoto¹, Seigo Ito¹ (1.Univ. of Hyogo)

Keywords:

perovskite solar cells,carbon electrode

This study aims to enhance the practicality of carbon-based multiporous-layered electrode perovskite solar cells (MPLE-PSCs) by adopting a fully non-vacuum process using formamidinium (FA⁺)-based perovskite light-absorbing materials. While conventional MPLE-PSCs typically use CH₃NH₃PbI₃ with 5-ammonium valeric acid iodide (5-AVAI-MAPbI₃) as the light absorber, recent efforts have focused on replacing it with FA-based materials to achieve higher-quality crystallization. However, FA-based perovskites often require strict atmospheric control during crystallization. In this study, we optimized the crystallization process for RbCsFAPbI₃ to enable fabrication in air.
By optimizing precursor solution concentration, annealing temperature, and solvent, a mini-module with a 15.17 cm² active area and a power conversion efficiency of 4.5% was successfully fabricated. This work demonstrates the potential of MPLE-PSCs for low-cost, scalable, and durable solar energy applications.