Numerical modelling and performance analysis of high efficiency perovskite based solar cells for next generation photovoltaics

Numerical modelling and performance analysis of high efficiency perovskite based solar cells for next generation photovoltaics | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Numerical modelling and performance analysis of high efficiency perovskite based solar cells for next generation photovoltaics Ahasan Habib Mehedi, Md. Mahfuzul Haque, Sheikh Hasib Cheragee, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8721747/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 15 You are reading this latest preprint version Abstract Perovskite materials have emerged as leading candidates for next-generation photovoltaics due to their superior optoelectronic properties, lightweight nature, high efficiency, and cost-effectiveness. Single-junction solar cells face fundamental efficiency limits due to spectral losses and thermalization losses. To overcome these constraints, double absorber architectures have gained attention. This study introduces a novel double-absorber solar cell architecture utilizing Rb2LiInBr6 as the upper absorber and MASnI3 as the lower absorber, simulated using SCAPS-1D. The device is optimized by fine-tuning absorber layer thicknesses to achieve efficient charge carrier extraction and enhanced power conversion efficiency (PCE). A comprehensive investigation is conducted on the effects of electron transport layer selection, absorber thickness variations, temperature fluctuations, defect densities, and metal work functions on device performance. The optimized structure, FTO/SnS2/Rb2LiInBr6/MASnI3/CuO/Au, exhibits outstanding photovoltaic characteristics, with an open-circuit voltage (Voc) of 1.1371 V, a short-circuit current density (Jsc) of 34.7112 mA/cm2, a fill factor (FF) of 82.21%, and a maximum PCE of 32.45%. Notably, an optimal MASnI3 thickness of ~1 μm significantly enhances performance, while increasing defect concentrations and temperature negatively impact efficiency, with stable operation maintained at 300 K. Furthermore, the findings indicate that a metal work function of 5.10 eV or higher is essential for efficient charge extraction. This study provides valuable insights into the development of high-performance perovskite-based double absorber solar cells, paving the way for future advancements in photovoltaic technology. Perovskite Solar Cell ETL HTL PCE SCAPS-1D Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 20 Apr, 2026 Reviews received at journal 07 Apr, 2026 Reviewers agreed at journal 29 Mar, 2026 Reviews received at journal 29 Mar, 2026 Reviewers agreed at journal 29 Mar, 2026 Reviewers agreed at journal 08 Mar, 2026 Reviews received at journal 07 Mar, 2026 Reviewers agreed at journal 06 Mar, 2026 Reviewers agreed at journal 06 Feb, 2026 Reviewers agreed at journal 06 Feb, 2026 Reviewers agreed at journal 06 Feb, 2026 Reviewers invited by journal 06 Feb, 2026 Editor assigned by journal 03 Feb, 2026 Submission checks completed at journal 03 Feb, 2026 First submitted to journal 28 Jan, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8721747","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":586943584,"identity":"9c204f82-f10f-410c-9538-310b3b4c5c3d","order_by":0,"name":"Ahasan Habib Mehedi","email":"","orcid":"","institution":"Jamalpur Science and Technology University","correspondingAuthor":false,"prefix":"","firstName":"Ahasan","middleName":"Habib","lastName":"Mehedi","suffix":""},{"id":586943587,"identity":"0a5bd5a9-9376-4004-bde8-98a2a4376b52","order_by":1,"name":"Md. 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Single-junction solar cells face fundamental efficiency limits due to spectral losses and thermalization losses. To overcome these constraints, double absorber architectures have gained attention. This study introduces a novel double-absorber solar cell architecture utilizing Rb2LiInBr6 as the upper absorber and MASnI3 as the lower absorber, simulated using SCAPS-1D. The device is optimized by fine-tuning absorber layer thicknesses to achieve efficient charge carrier extraction and enhanced power conversion efficiency (PCE). A comprehensive investigation is conducted on the effects of electron transport layer selection, absorber thickness variations, temperature fluctuations, defect densities, and metal work functions on device performance. The optimized structure, FTO/SnS2/Rb2LiInBr6/MASnI3/CuO/Au, exhibits outstanding photovoltaic characteristics, with an open-circuit voltage (Voc) of 1.1371 V, a short-circuit current density (Jsc) of 34.7112 mA/cm2, a fill factor (FF) of 82.21%, and a maximum PCE of 32.45%. Notably, an optimal MASnI3 thickness of ~1 μm significantly enhances performance, while increasing defect concentrations and temperature negatively impact efficiency, with stable operation maintained at 300 K. Furthermore, the findings indicate that a metal work function of 5.10 eV or higher is essential for efficient charge extraction. 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