{"id":20393,"date":"2022-10-24T15:04:49","date_gmt":"2022-10-24T15:04:49","guid":{"rendered":"https:\/\/peymantaeidi.net\/stem-cell\/?p=20393"},"modified":"2022-10-24T18:33:40","modified_gmt":"2022-10-24T18:33:40","slug":"nanostructures-help-in-many-ways","status":"publish","type":"post","link":"https:\/\/peymantaeidi.net\/stem-cell\/2022\/10\/24\/nanostructures-help-in-many-ways\/","title":{"rendered":"Nanostructures help in many ways"},"content":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/peymantaeidi.net\/stem-cell\/wp-content\/uploads\/2022\/07\/photo-1512314889357-e157c22f938d\" class=\"ff-og-image-inserted\" alt=\"image\" \/><\/div>\n<div class=\"thumbnail single-post-thumbnail\">\n<div class=\"attachment-wt450_250 hide-in-mob\"><ins class=\"adsbygoogle\" data-ad-client=\"ca-pub-4000288052572090\" data-ad-slot=\"5191473366\" data-ad-format=\"auto\"><\/ins><\/div>\n<\/div>\n<div class=\"caption ta\">\n<div class=\"caption\">Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie<\/div>\n<\/div>\n<div class=\"main-article-body of-type-ews\">\n<p>Tandem solar cells made of perovskite and silicon enable significantly higher efficiencies than silicon solar cells alone. Tandem cells from HZB have already achieved several world records. Most recently, in November 2021, HZB research teams achieved a certified efficiency of 29.8 % with a tandem cell made of perovskite and silicon. This was an absolute world record that stood unbeaten at the top for eight months. It was not until the summer of 2022 that a Swiss team at EPFL succeeded in surpassing this value.<\/p>\n<h2>Joined forces<\/h2>\n<p>Three HZB teams had worked closely together for the record-breaking tandem cell. Now they present the details in Nature Nanotechnology. The journal also invited them to write a research briefing, in which they summarise their work and give an outlook on future developments.<\/p>\n<h2>Textures improves the performance<\/h2>\n<p>\u201cOur competences complement each other very well,\u201d says Prof. Dr. Christiane Becker, who developed the world record cell with the team led by Dr. Bernd Stannowski (silicon bottom cell) and Prof. Dr. Steve Albrecht (perovskite top cell). Becker\u2019s team introduced a nanooptical structure into the tandem cell: a gently corrugated nanotexture on the silicon surface. \u201cMost surprising, this texture brings several advantages at once: it reduces reflection losses and ensures a more regular perovskite film formation,\u201d says Becker. In addition, a dielectric buffer layer on the back of the silicon reduces parasitic absorption at near-infrared wavelengths.<\/p>\n<p>As a conclusion, the researchers hold: customised nanotextures can help to improve perowskite semiconductor materials on diverse levels. These results are not only valuable for tandem solar cells made of perovskite and silicon, but also for perovskite-based light-emitting diodes.<\/p>\n<p> <ins class=\"adsbygoogle\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-4000288052572090\" data-ad-slot=\"3908435902\" data-full-width-responsive=\"true\"><\/ins> <\/p>\n<div class=\"clear\">\/Public Release. This material from the originating organization\/author(s) may be of a point-in-time nature, edited for clarity, style and length. The views and opinions expressed are those of the author(s).View in full <a rel=\"nofollow noopener\" target=\"_blank\">here<\/a>.<\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie Tandem solar cells made of perovskite and silicon enable<\/p>\n","protected":false},"author":1,"featured_media":5353,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/20393"}],"collection":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/comments?post=20393"}],"version-history":[{"count":2,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/20393\/revisions"}],"predecessor-version":[{"id":20395,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/posts\/20393\/revisions\/20395"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/media\/5353"}],"wp:attachment":[{"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/media?parent=20393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/categories?post=20393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/peymantaeidi.net\/stem-cell\/wp-json\/wp\/v2\/tags?post=20393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}