{"id":603909,"date":"2023-02-02T09:30:00","date_gmt":"2023-02-02T15:30:00","guid":{"rendered":"https:\/\/news.sellorbuyhomefast.com\/index.php\/2023\/02\/02\/inverted-perovskite-solar-cell-with-24-1-efficiency\/"},"modified":"2023-02-02T09:30:00","modified_gmt":"2023-02-02T15:30:00","slug":"inverted-perovskite-solar-cell-with-24-1-efficiency","status":"publish","type":"post","link":"https:\/\/newsycanuse.com\/index.php\/2023\/02\/02\/inverted-perovskite-solar-cell-with-24-1-efficiency\/","title":{"rendered":"Inverted perovskite solar cell with 24.1% efficiency"},"content":{"rendered":"
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An international research group has developed an inverted perovskite solar cell with an active area of 9.6 mm2 by using polymer dipoles for interfacial engineering. It retained 96% of its initial power conversion efficiency after continuous maximum power point (MPP) tracking for 1,000 hours.<\/p>\n

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An international research group has fabricated an inverted<\/a> perovskite solar cell based by using polymer to improve the low-defect crystallinity of the perovskite film. <\/span>Dipoles<\/a>, which are molecules with opposite charges<\/span><\/span> on the ends, are commonly used in solar research for interfacial engineering strategies in organic and perovskite solar cells.<\/span><\/p>\n

The scientists built the solar cell with an active area of 9.6 mm<\/span>2<\/span> and a p-i-n structure<\/a>, which means the perovskite cell material is deposited onto the hole transport layer, and then coated with the electron transport layer, unlike with conventional n-i-p device architecture. Inverted perovskite solar cells typically show strong stability, but lag behind conventional devices in terms of conversion efficiency and cell performance.<\/p>\n

The researchers said that dipoles on the perovskite sur<\/span>face can suppress ion migration, while facilitating <\/span>interfacial charge extraction and enhancing <\/span>hydrophobicity. They used a type of dipole known as b-pV2F and said it enabled a more compact perovskite film with an enlarged grain size of around 480 nm. <\/span><\/p>\n

\u201cAtomic force microscopy images showed that b-pV2F reduced the surface roughness from 54.4 to 41.1 nm, which is expected to ameliorate coverage with charge-transporting layers,\u201d they said.
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The team measured the entire film formation process via grazing incidence wide-angle x-ray scattering <\/span>(GIWAXS) and found that b-pV2F controls the perovskite crystallization by reducing perovskite formation energy, which results in a more ordered crystal structure. <\/span>The cell configuration features a glass\/indium tin oxide (ITO<\/span>) substrate, an electron acceptor made of phenyl-C61-butyric acid methyl ester (PCBM)<\/a>, a perovskite layer, a phenyl-C61-butyric acid methyl ester (PCBM)<\/a> layer<\/span>, and a silver (Ag) metal contact.<\/p>\n

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The device achieved a power conversion efficiency of 24.2% under standard illumination conditions, an open-circuit voltage of 1.18 V<\/span>, a short-circuit current of 24.8 mA\/cm<\/span>2<\/span> , and a fill factor of 84.3%. The Shanghai Institute of Microsystem and Information Technology (SIMIT) confirmed the results. <\/span><\/p>\n

\u201cThe stability of unencapsulated devices under working conditions shows that target perovskite solar cells retain 96% of the initial power conversion efficiency after continuous maximum power point <\/span><\/span>tracking for 1,000 hours,\u201d the scientists said. <\/span><\/p>\n

They described the cell technology in \u201cHighly efficient p-i-n perovskite solar cells that endure temperature variations<\/a>,\u201d which was recently published in Science<\/em>. The research group includes academics from Helmholtz-Zentrum Berlin<\/a> (HZB) and the University of Stuttgart<\/a> in Germany, the Chinese Academy of Sciences<\/a>, and Swansea University<\/a> in the United Kingdom.<\/p>\n

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\n Emiliano Bellini<\/p>\n","protected":false},"excerpt":{"rendered":"

An international research group has developed an inverted perovskite solar cell with an active area of 9.6 mm2 by using polymer dipoles for interfacial engineering. It retained 96% of its initial power conversion efficiency after continuous maximum power point (MPP) tracking for 1,000 hours. February 2, 2023 Emiliano Bellini An international research group has fabricated […]<\/p>\n","protected":false},"author":1,"featured_media":603910,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[534,55067,30808],"tags":[],"class_list":["post-603909","post","type-post","status-publish","format-standard","has-post-thumbnail","category-financial","category-inverted","category-perovskite"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/posts\/603909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/comments?post=603909"}],"version-history":[{"count":0,"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/posts\/603909\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/media\/603910"}],"wp:attachment":[{"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/media?parent=603909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/categories?post=603909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/newsycanuse.com\/index.php\/wp-json\/wp\/v2\/tags?post=603909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}