Design and Optimization of CsPbI3 Perovskite Solar Cells Using SCAPS-1D

Muhamad Kevin Ristiansyah; Bayu Prasetya; Mochammad Ghulam Isaq Khan; Muhammad Yasin Siregar; Abyan Abdillah Saoloan Panjaitan; Eri Widianto; Eka Nurfani

doi:10.62755/gsm.2026.04

Articles Open Access 25 May 2026

Design and Optimization of CsPbI3 Perovskite Solar Cells Using SCAPS-1D

Muhamad Kevin Ristiansyah
Muhamad Kevin Ristiansyah
Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia
Bayu Prasetya
Bayu Prasetya
Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia
Mochammad Ghulam Isaq Khan
Mochammad Ghulam Isaq Khan
Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia
Muhammad Yasin Siregar
Muhammad Yasin Siregar
Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia
Abyan Abdillah Saoloan Panjaitan
Abyan Abdillah Saoloan Panjaitan
Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia
Eri Widianto
Eri Widianto
Department of Physics, Faculty of Engineering, Universitas Singaperbangsa Karawang, Telukjambe Timur, Karawang 41361, Indonesia
Eka Nurfani
Eka Nurfani^*
Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia
eka.nurfani@mt.itera.ac.id
0000-0002-6974-2796
* Corresponding author

Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia

Department of Physics, Faculty of Engineering, Universitas Singaperbangsa Karawang, Telukjambe Timur, Karawang 41361, Indonesia

Department of Materials Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera (ITERA), Lampung 35365, Indonesia

Abstract

This study investigates the optimization of CsPbI3-based perovskite solar cells using SCAPS-1D simulation with a device structure of FTO/ZnO/CsPbI3/Spiro-OMeTAD/metal. Key parameters, including absorber thickness, defect density, acceptor concentration, and transport layer properties, were systematically analyzed. The results show that absorber thickness significantly affects device performance, with an optimal thickness of 1.6 μm yielding an efficiency of 17.66%. Optimization of defect density and acceptor concentration further enhances device performance. After overall optimization, the power conversion efficiency increases from 16.3% to 23.1%, with *V*oc improving from 1.19 V to 1.39 V, *J*sc from 18.33 to 20.5 mA/cm2, and FF from 75.2% to 87.4%. The improvement is supported by enhanced J–V characteristics and near-unity quantum efficiency over a wide wavelength range. These results demonstrate that parameter optimization plays a crucial role in achieving high-performance CsPbI3 perovskite solar cells.

Keywords

CsPbI3 perovskite SCAPS-1D solar cells

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