COMPUTATIONAL STUDY ON THE EFFECT OF ANODE LAYER VARIATION ON THE PERFORMANCE OF FASNI3- BASED PEROVSKITE SOLAR CELLS

• Main Author: Ariyanto, Febri
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/86776
• Institution: Institut Teknologi Bandung

The development of lead-free perovskite solar cells (PSC) is gaining traction due to concerns over the toxicity of lead-based materials. This study explores various anode materials as back contact of tin-based perovskites with complete configuration consisting of FTO/TiO2/FASnI3/PTAA/Anode to enhance the performance of FASnI3-based PSC. Using SCAPS-1D and density functional theory (DFT) simulations, we analyze the impact of varying work functions of various metals including several alloy metals on the device performance and stability. The initial calculation results using previous research as reference indicate the work function of metal contacts ranging from 4.7 eV to 6.1 eV enable to optimize the Power Conversion Efficiency (PCE). By utilizing DFT, confirming the accuracy of the work function parameter by computing the difference between vacuum potential and Fermi level of each material, further validating the device’s capability with PCE 17%. These results highlight the significance of selecting suitable anode materials to improve both the efficiency and durability of tin-based PSCs based on their layer configuration. Key properties of the anode material, such as work function and electrical conductivity, can optimize the charge extraction, minimizing recombination losses, and enhancing overall device performance. This leads to improved power conversion efficiency and longer operational lifetimes. Keywords: DFT, FASnI3, lead-free perovskite, metal back contact, photovoltaic stability, power conversion efficiency, SCAPS-1D.