Electrical and Computer Engineering Faculty Publications

Document Type

Article

Publication Date

2-13-2026

Abstract

In this study, we present a comprehensive numerical investigation of chlorine-doped perovskite solar cells using the SCAPS-1D simulation framework, with the device structure ITO/ZnO/CH3NH3PbI3−xClx/NiOx/Au. This work focuses on optimizing active-layer properties and compositional engineering to enhance photovoltaic performance. Initially, the influence of absorber thickness on device parameters was investigated, revealing that CH3NH3PbI3 achieves optimal performance at 800 nm thickness, delivering a power conversion efficiency (PCE) of 24.17%, along with a short circuit current density (Jsc) of 25.31 mA cm−2, an open circuit voltage (Voc) of 1.15 V, and a fill factor (FF) of 82.75%. Subsequently, chlorine incorporation was systematically varied to evaluate its effect on device performance. The composition MAPbI2.8Cl0.2 emerged as the most favorable, achieving an enhanced PCE of 27.34%, with Jsc = 25.00 mA cm−2, Voc = 1.31 V, and FF = 83.63%. Finally, comparative simulations across different electron transport layers, hole transport layers, absorber materials, and lead-free perovskites highlight the performance advantages of an optimized structure. Our simulated results provide valuable insights into the design of highly efficient Cl-doped perovskite solar cells and demonstrate the potential of compositional tuning for next-generation photovoltaic devices.

Comments

This Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licence

Creative Commons License

Creative Commons Attribution-Noncommercial 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 License

Publication Title

Energy Advances

DOI

10.1039/D5YA00343A

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