Optimizing hole transport materials and electrodes for enhanced performance in RbGeBr3-based on perovskite solar cells utilizing fullerene as an electron transport material.

Valizadeh, Shima; Shokri, Aliasghar; Lawal, Sani M.; Fough, Nazila

Abstract

In this work, the behavior of the electron transport material C60 and various organic and inorganic hole transfer materials, along with an inorganic perovskite material RbGeBr3, has studied in different perovskite solar cells. The finite element method is utilized to compute solutions to the Poisson, continuity, and electrical transport equations. To obtain the highest efficiency among these cells, the thickness of the electron-transporting and light-absorbing layers has been changed. Additionally, how the various electron-collecting metal electrodes affect each structure’s optimum efficiency has been investigated. Among all these designed structures, the architecture FTO/C60/RbGeBr3/NiO/Au has presented the highest efficiency of 16.48 %, along with an open circuit voltage of 0.92 V and a short circuit current of 22.25 mA/cm2. Moreover, by changing the gold contact instead of the nickel contact, the efficiency obtained was approximately the same value. The results of this research could assist with creating improved and more efficient mineral perovskite-based solar cells.

Citation

VALIZADEH, S., SHOKRI, A., LAWAL, S.M. and FOUGH, N. 2025. Optimizing hole transport materials and electrodes for enhanced performance in RbGeBr3-based on perovskite solar cells utilizing fullerene as an electron transport material. Results in physics [online], 73, article number 108280. Available from: https://doi.org/10.1016/j.rinp.2025.108280

• Journal Article Type: Article
• Acceptance Date: Apr 26, 2025
• Online Publication Date: Apr 28, 2025
• Publication Date: Jun 30, 2025
• Deposit Date: May 5, 2025
• Publicly Available Date: May 5, 2025
• Journal: Results in physics
• Electronic ISSN: 2211-3797
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 73
• Article Number: 108280
• DOI: https://doi.org/10.1016/j.rinp.2025.108280
• Keywords: Perovskite solar cells; Photovoltaic technology; Inorganic perovskite material; Final efficiency; COMSOL multiphysics simulator
• Public URL: https://rgu-repository.worktribe.com/output/2829808