Work

Defect Passivation via Plasma Modification of Lead Halide Perovskite Thin Films

Year: 2026

Type: article

Abstract: ABSTRACT The defects located at surface and grain boundaries are generally agreed to be the key factors limiting the power conversion efficiency and operational stability of the halide perovskite solar cells. Therefore, new techniques for surface and grain boundaries passivation are being continuously developed and studied. In this work, we investigate the impact of diffuse coplanar surface barrier discharge (DCSBD) nitrogen plasma treatment on the photoluminescence properties and performance of halide perovskite thin films in solar cells. We show that plasma exposure leads to an increase in photoluminescence, attributed to reduced defect densities, resulting in implied open‐circuit voltage improvement of up to 80 mV. Furthermore, solar cells fabricated with plasma‐treated layers exhibited open‐circuit gains up to 60 mV. These results demonstrate that, with careful optimization, DCSBD nitrogen plasma treatment is an effective method for enhancing the efficiency of perovskite solar cells. Moreover, it is an easily scalable and dry process, two factors that make it an ideal method for industrial applications.

Source: Progress in Photovoltaics Research and Applications

DOI: 10.1002/pip.70075

Authors: Ales Vlk, Robert Hlavac, Lucie Landova, Mykhailo Khytko, Swarnendu Banerjee, Julius Vida, Jiří Fujera, Mostafa Othman, Aïcha Hessler‐Wyser, Christophe Ballif, Christian Wolff, Tomas Homola, Martin Ledinsky

Institutions: FZU - Institute of Physics of the Czech Academy of Sciences, Masaryk University, Czech Academy of Sciences, Czech Academy of Sciences, Institute of Plasma Physics, École Polytechnique Fédérale de Lausanne

Language: English

Topic: Perovskite Materials and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $5,150

Funders: National Science Foundation, European Commission, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Ministerstvo Školství, Mládeže a Tělovýchovy, Grantová Agentura České Republiky, Bundesamt für Energie

Awards: RADICALS - Rationally Designed Thin Contact Layers enabling Large-Scale Perovskite-on-Silicon Tandem Photovoltaics, Research infrastructure CzechNanoLab, G434337789, G4468028205, Understanding of halide perovskite thin films plasma passivation process to increase the photovoltaic conversion efficiency, G5171701700, A new PhD training for the next generation of sustainable science leaders, G5770367750, G6174040907, Triple junction solar modules based on perovskites and silicon for high performance, low-cost and small environmental footprint, R&D centre for plasma and nanotechnology surface modifications, Fully connected virtual and physical perovskite photovoltaics lab

OpenAlex ID: W7129349945

FWCI: 1.754

Cites: 35

Cited by: 1

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