2026-04-17T19:10:28Zhttps://recercat.cat/oai/request

oai:recercat.cat:2072/4808782025-08-31T17:46:54Zcom_2072_98col_2072_378192

Strain in Halide Perovskites and Solar Cell Stability : Accelerated Stress Tests under Bias Voltage Baumann, Fanny Karimipour, M Padilla-Pantoja, Jessica Chávez Ángel, Emigdio Caicedo Roque, Jose Manuel Pouteaux, Rémy Alcalá Ibarra, Alex Ruiz Raga, Sonia Santiso, José Lira-Cantu, Monica Accelerated stress Cell stability Cell-be Cell/B.E Cell/BE Commercialisation Halide perovskites Lifespans Perovskite lattice Stress test The lifespan of halide perovskite solar cells (PSCs) is currently a major concern for the implementation and commercialization of the technology. Tensile and compressive strain alters the halide perovskite (HP) lattice under operando conditions, affecting PSC stability. However, the mechanisms governing strain responses are still unknown. In this work, we monitored the evolution of strain in PSCs during accelerated stability tests under continuous light irradiation and bias-voltage. Additive engineering led to a compression of the HP lattice, improving PSC stability. The temporal evolution of the HP lattice, together with the electrical response of devices employing modified and reference HP, was tracked by in situ X-ray diffraction, photoluminescence, and quasi in situ electrochemical impedance spectroscopy. Our results demonstrate a good correlation between lattice expansion (strain) and the device's current decay and stability. Additionally, and contrary to the current understanding, we observed that lattice compression in HP was not sufficient to ensure protection against degradation. 2025 info:eu-repo/date/embargoEnd/2026-01-31 Article https://ddd.uab.cat/record/306055 urn:10.1021/acsenergylett.4c02822 urn:oai:ddd.uab.cat:306055 urn:icn2uab:6722502 urn:scopus_id:85213470382 urn:articleid:23808195v10n1p476 urn:pmid:40114994 urn:pmc-uid:11922313 urn:pmcid:PMC11922313 urn:oai:pubmedcentral.nih.gov:11922313 eng Agencia Estatal de Investigación PID2022-143344OB-I00 Agencia Estatal de Investigación PRE2020-092669 Ministerio de Ciencia, Innovación y Universidades SEV-2017-0706 "la Caixa" Foundation 11760024 Agencia Estatal de Investigación PID2021-122349OA-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-01617 Agencia Estatal de Investigación CEX2021-001214-S ACS energy letters ; Vol. 10, Issue 1 (January 2025), p. 476-483 embargoed access Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. https://rightsstatements.org/vocab/InC/1.0/ application/pdf