Parylene Capping for Prolonged Stability of Perovskite Solar Cells

Žan A, Schwarberg J, Wilhelm J, Zimmermann V, Topič M, Jošt M (2026)

Publication Type: Journal article

Publication year: 2026

Journal

Solar RRL Wiley-VCH

Book Volume: 10

Article Number: e70343

Journal Issue: 8

DOI: 10.1002/solr.70343

Abstract

The effect of Parylene capping on perovskite solar cells has been tested by its deposition on top of FACs perovskite devices, already capped with 30-nm-thick Al2O3, in three different thicknesses: 2, 5, and 15 μm. The cells were tested against ingress of water, in damp-heat chamber and long-term maximum power point operation. Devices immersed in water and tested in the damp-heat chamber were regularly measured under a sun simulator to monitor their performance, in addition to visual comparison. In all tests, Parylene-capped cells outperformed the reference without Parylene, clearly demonstrating the beneficial effect of Parylene. In the long-term stability test in air without additional encapsulant, the perovskite solar cell's t80 lifetime (time till 80% of initial performance) was tripled in the case of 5-μm-thick Parylene.

Authors with CRIS profile

Jannik Schwarberg Lehrstuhl für Elektronische Bauelemente

Involved external institutions

University of Ljubljana (UL) / Univerza v Ljubljani

Slovenia (SI) Fraunhofer-Institut für Integrierte Systeme und Bauelementetechnologie (IISB)

Germany (DE)

How to cite

APA:

Žan, A., Schwarberg, J., Wilhelm, J., Zimmermann, V., Topič, M., & Jošt, M. (2026). Parylene Capping for Prolonged Stability of Perovskite Solar Cells. Solar RRL, 10(8). https://doi.org/10.1002/solr.70343

MLA:

Žan, Ajdič, et al. "Parylene Capping for Prolonged Stability of Perovskite Solar Cells." Solar RRL 10.8 (2026).

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