DataVXACS Energy LettersPaper
journal article·2025-08-08Open access

DMSO-Free Tin Halide Perovskites for Indoor Photovoltaics

Debendra Prasad Panda, Rabeb Issaoui, Zafar Iqbal, G. Krishnamurthy Grandhi, Muhammad Okash Ur Rehman, Fengshuo Zu, Paola Alippi, Madineh Rastgoo, Shengnan Zuo, Enrica Luzzi, Maxim Simmonds, Lorenzo Miele, Luigi Sanguigno, Meng Li, Paolo Aprea, Ernesto Di Maio, Norbert Koch, Paola Vivo, Antonio Abate

ACS Energy Letters· Volume 10· Issue 8
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Source abstract

Abstract

High Resolution Image Download MS PowerPoint Slide Indoor photovoltaic (IPV) technology has emerged as an effective strategy to sustainably power batteryless Internet of Things (IoT) devices. Though tin perovskite solar cells offer competitive IPV performance, their effectiveness is often compromised by Sn 2+ oxidation, particularly when processed with dimethyl sulfoxide (DMSO) solvent. This work explored the IPV performance of DMSO-free tin perovskites FASnI 3– x Br x by tuning the halide composition. Notably, X-ray photoelectron spectroscopy confirms no traces of Sn 4+, highlighting the critical role of eliminating DMSO. Under 1000 lx indoor illumination, the power conversion efficiency (PCE) increases with Br content, reaching a maximum of 11.1% for FASnI 2 Br without introducing any reducing agent. Remarkably, after six months of storage, it exhibited an impressive indoor PCE of 11.9%, demonstrating the effectiveness of the DMSO-free processing route for the intrinsic stability of the tin perovskite. These findings provide crucial insights for developing high-performance, lead-free perovskite materials for sustainable energy applications and IoT devices.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Chalcogenide Semiconductor Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical, Materials and Industrial Production Engineering

University of Naples Federico II

Helmholtz-Zentrum Berlin für Materialien und Energie (HZB), Hahn-Meitner-Platz 1, 14109 Berlin, Germany

Hybrid Solar Cells, Faculty of Engineering and Natural Sciences

Tampere University

CNR-ISM, Consiglio Nazionale delle Ricerche, Istituto di Struttura della Materia, Via Salaria Km 29.3, I-00015 Monterotondo Stazione, Roma, Italy

Key Laboratory for Special Functional Materials of Ministry of Education, School of Nanoscience and Materials Engineering

Henan University

Institut für Physik & Center for Science of Materials Berlin, Newtonstraße 15, 12489 Berlin, Germany

Department of Chemistry Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany

Funding

Helmholtz-Zentrum Berlin f?r Materialien und Energie · Research Council of Finland · Ministero dell'Universit? e della Ricerca · NextGenerationEU · Ministero dell'ambiente e della sicurezza energetica

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