{"id":698196,"date":"2025-11-08T13:30:37","date_gmt":"2025-11-08T10:30:37","guid":{"rendered":"https:\/\/buradabiliyorum.com\/en\/long-term-stability-for-perovskite-solar-cells-achieved-with-fluorinated-barrier-compound-2\/"},"modified":"2025-11-08T13:30:37","modified_gmt":"2025-11-08T10:30:37","slug":"long-term-stability-for-perovskite-solar-cells-achieved-with-fluorinated-barrier-compound-2","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/long-term-stability-for-perovskite-solar-cells-achieved-with-fluorinated-barrier-compound-2\/","title":{"rendered":"Long-term stability for perovskite solar cells achieved with fluorinated barrier compound"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a358449c1b88\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a358449c1b88\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/long-term-stability-for-perovskite-solar-cells-achieved-with-fluorinated-barrier-compound-2\/#High_efficiency_plus_stability\" >High efficiency plus stability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/long-term-stability-for-perovskite-solar-cells-achieved-with-fluorinated-barrier-compound-2\/#The_idea_had_been_germinating_for_years\" >The idea had been germinating for years<\/a><\/li><\/ul><\/nav><\/div>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/long-term-stability-fo.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/long-term-stability-fo.jpg\" data-sub-html=\"A fluorinated compound between the perovskite and the buckyball (C&lt;sub&gt;60&lt;\/sub&gt;) contact layer forms an almost monomolecular film that acts as a chemical protective barrier and increases the stability of the cell. Credit: Guixiang Li\/Nature Photonics 2025\">\n<figure class=\"article-img\">\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/long-term-stability-fo.jpg\" alt=\"Long-term stability for perovskite solar cells: a big step forward\" title=\"A fluorinated compound between the perovskite and the buckyball (C60) contact layer forms an almost monomolecular film that acts as a chemical protective barrier and increases the stability of the cell. Credit: Guixiang Li\/Nature Photonics 2025\" width=\"800\" height=\"529\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                A fluorinated compound between the perovskite and the buckyball (C<sub>60<\/sub>) contact layer forms an almost monomolecular film that acts as a chemical protective barrier and increases the stability of the cell. Credit: Guixiang Li\/Nature Photonics 2025<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>Perovskite solar cells are inexpensive to produce and generate a high amount of electric power per surface area. However, they are not yet stable enough, losing efficiency more rapidly than the silicon market standard. Now, an international team led by Prof. Dr. Antonio Abate has dramatically increased their stability by <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>lying a novel coating to the interface between the surface of the perovskite and the top contact layer. This has even boosted efficiency to almost 27%, which represents the state-of-the-art.<\/p>\n<p>After 1,200 hours of continuous operation under standard illumination, no decrease in efficiency was observed. The study involved research teams from China, Italy, Switzerland and Germany and has been <a rel=\"nofollow\" target=\"_blank\" href=\"https:\/\/www.nature.com\/articles\/s41566-025-01791-1\" target=\"_blank\">published<\/a> in <i>Nature Photonics<\/i>.<\/p>\n<p>&#8220;We used a fluorinated compound that can slide between the perovskite and the buckyball (C<sub>60<\/sub>) contact layer, forming an almost compact monomolecular film,&#8221; explains Abate. These Teflon-like molecular layer chemically isolate the perovskite layer from the contact layer, resulting in fewer defects and losses. Additionally, the inter<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">media<\/a>te layer increases the structural stability of both adjacent layers, particularly the C60 layer, making it more uniform and compact.<\/p>\n<p>&#8220;It&#8217;s actually like the Teflon effect,&#8221; says Abate. &#8220;The intermediate layer forms a chemical barrier that prevents defects while still allowing the electric contact.&#8221;<\/p>\n<p>Much of the experimental research was conducted by the first author, Guixiang Li, while he was a Ph.D. student in Abate&#8217;s team. Guixiang Li is now a professor at Southeast University in Nanjing, China, and continues the collaboration. The study also involved teams from the \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL) and Imperial College London.<\/p>\n<p>                                                                                                        <!-- TechX - News - In-article --><\/p>\n<h2><span class=\"ez-toc-section\" id=\"High_efficiency_plus_stability\"><\/span>High efficiency plus stability<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Using this approach, perovskite solar cells can achieve a lab-scale efficiency of 27%, which is slightly higher than the 26% efficiency without the intermediate layer. The increase in stability is huge: even after 1,200 hours of continuous illumination by a &#8220;standard sun,&#8221; this high efficiency does not decrease. &#8220;1,200 hours corresponds to one year of outdoor use,&#8221; Abate emphasizes.<\/p>\n<p>In the comparison cell without the &#8220;Teflon layer,&#8221; the efficiency dropped by 20% after just 300 hours. The coating also provides exceptional thermal stability when aged for 1,800 hours at 85 \u00b0C and tested for 200 cycles between \u201340 \u00b0C and +85 \u00b0C. The perovskite solar cells presented here have an inverted (p-i-n) structure, which lends itself particularly well to use in tandem cells, for example in combination with silicon cells.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_idea_had_been_germinating_for_years\"><\/span>The idea had been germinating for years<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8220;The idea of using such Teflon-like molecules to form an intermediate film has been on my mind since my postdoctoral days in Henry Snaith&#8217;s lab, who did pioneer research on the perovskite materials. At that time, in 2014, the efficiency was only 15%, declining significantly within a few hours. We have made huge progress,&#8221; says Abate.<\/p>\n<p>These results pave the way for the next generation of highly efficient and highly stable perovskite-based optoelectronic devices.<\/p>\n<div class=\"article-main__more p-4\">\n<p><strong>More information:<\/strong><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\tGuixiang Li et al, Stabilizing high-efficiency perovskite solar cells via strategic interfacial contact engineering, <i>Nature Photonics<\/i> (2025). <a rel=\"nofollow\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1038\/s41566-025-01791-1\" target=\"_blank\">DOI: 10.1038\/s41566-025-01791-1<\/a><\/p>\n<\/p><\/div>\n<div class=\"d-inline-block text-medium my-4\">\n                                                Provided by<br \/>\n                                                                                                    Helmholtz Association of German Research Centres<br \/>\n                                                    \t\t\t\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.helmholtz.de\/en\/\" target=\"_blank\" rel=\"nofollow\"><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<use href=\"https:\/\/techx.b-cdn.net\/tmpl\/v2\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/svg><br \/>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>\n                                                <strong>Citation<\/strong>:<br \/>\n                                                Long-term stability for perovskite solar cells achieved with fluorinated barrier compound (2025, November 7)<br \/>\n                                                retrieved 8 November 2025<br \/>\n                                                from https:\/\/techxplore.com\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2025-11-term-stability-perovskite-solar-cells.html\n                                            <\/p>\n<p>\n                                            This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n                                            part may be reproduced without the written permission. The content is provided for information purposes only.\n                                            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><script id=\"facebook-jssdk\" async=\"\" src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMN63nwsw68G3Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more Like this articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/buradabiliyorum.com\/en\/category\/sciencee\/\" target=\"_blank\" >Science category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/techxplore.com\/news\/2025-11-term-stability-perovskite-solar-cells.html\" target=\"_blank\" >Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A fluorinated compound between the perovskite and the buckyball (C60) contact layer forms an almost monomolecular film that acts as a chemical protective barrier and increases the stability of the cell. Credit: Guixiang Li\/Nature Photonics 2025 Perovskite solar cells are inexpensive to produce and generate a high amount of electric power per surface area. However,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":698197,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/long-term-stability-fo.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-698196","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/698196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=698196"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/698196\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/698197"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=698196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=698196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=698196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}