Strain in Halide Perovskites and Solar Cell Stability: Accelerated Stress Tests under Bias Voltage

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2024-12-26 DOI:10.1021/acsenergylett.4c02822

Fanny Baumann, Masoud Karimipour, Jessica Padilla-Pantoja, Emigdio Chávez-Angel, Jose Manuel Caicedo Roque, Rémy Pouteaux, Alex Alcalá Ibarra, Sonia R. Raga, José Santiso, Monica Lira-Cantu

{"title":"Strain in Halide Perovskites and Solar Cell Stability: Accelerated Stress Tests under Bias Voltage","authors":"Fanny Baumann, Masoud Karimipour, Jessica Padilla-Pantoja, Emigdio Chávez-Angel, Jose Manuel Caicedo Roque, Rémy Pouteaux, Alex Alcalá Ibarra, Sonia R. Raga, José Santiso, Monica Lira-Cantu","doi":"10.1021/acsenergylett.4c02822","DOIUrl":null,"url":null,"abstract":"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 <i>in situ</i> X-ray diffraction, photoluminescence, and quasi <i>in situ</i> 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.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"17 1","pages":""},"PeriodicalIF":19.3000,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Energy Letters ","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acsenergylett.4c02822","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

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.

Abstract Image

查看原文本刊更多论文

卤化物钙钛矿应变与太阳能电池稳定性：偏置电压下的加速应力试验

卤化物钙钛矿太阳能电池（PSCs）的寿命是目前该技术实施和商业化的主要问题。在操作条件下，拉伸和压缩应变改变了卤化物钙钛矿（HP）的晶格，影响了PSC的稳定性。然而，控制应变响应的机制仍然是未知的。在这项工作中，我们监测了PSCs在连续光照射和偏压下加速稳定性试验中的应变演变。增材工程导致压缩HP晶格，提高PSC的稳定性。利用原位x射线衍射、光致发光和准原位电化学阻抗谱跟踪了HP晶格的时间演变，以及采用改良HP和参考HP的器件的电响应。我们的结果表明，晶格膨胀（应变）与器件的电流衰减和稳定性之间存在良好的相关性。此外，与目前的理解相反，我们观察到HP中的晶格压缩不足以确保防止退化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.