{"id":6924,"date":"2022-09-23T14:38:00","date_gmt":"2022-09-23T12:38:00","guid":{"rendered":"https:\/\/www.institut-foton.eu\/?p=6924"},"modified":"2025-04-22T12:29:18","modified_gmt":"2025-04-22T10:29:18","slug":"deterministic-fabrication-of-3d-2d-perovskite-bilayer-stacks-for-durable-and-efficient-solar-cells","status":"publish","type":"post","link":"https:\/\/www.institut-foton.eu\/en\/deterministic-fabrication-of-3d-2d-perovskite-bilayer-stacks-for-durable-and-efficient-solar-cells\/","title":{"rendered":"Deterministic fabrication of 3D\/2D perovskite bilayer stacks for durable and efficient solar cells"},"content":{"rendered":"\n<p>Realizing solution-processed heterostructures is a long-enduring challenge in halide perovskites because of solvent incompatibilities that disrupt the underlying layer. By leveraging the solvent dielectric constant and Gutmann donor number, we could grow phase-pure two-dimensional (2D) halide perovskite stacks of the desired composition, thickness, and bandgap onto 3D perovskites without dissolving the underlying substrate. Characterization reveals a 3D\u20132D transition region of 20 nanometers mainly determined by the roughness of the bottom 3D layer. Thickness dependence of the 2D perovskite layer reveals the anticipated trends for n-i-p and p-i-n architectures, which is consistent with band alignment and carrier transport limits for 2D perovskites. We measured a photovoltaic efficiency of 24.5%, with exceptional stability of <em>T<\/em><sub>99<\/sub> (time required to preserve 99% of initial photovoltaic efficiency) of >2000 hours, implying that the 3D\/2D bilayer inherits the intrinsic durability of 2D perovskite without compromising efficiency.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:38% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"433\" height=\"566\" src=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2024\/01\/Pero2022-3.png\" alt=\"\" class=\"wp-image-6925 size-full\" srcset=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2024\/01\/Pero2022-3.png 433w, https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2024\/01\/Pero2022-3-230x300.png 230w\" sizes=\"auto, (max-width: 433px) 100vw, 433px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><strong>Photovoltaic performance and long-term stability of the 3D|PP-2D(BA<sub>2<\/sub>MA<sub>2<\/sub>Pb<sub>3<\/sub>I<sub>10<\/sub>) HaP bilayer solar cells. (A) <\/strong>Energy-level alignment for different n-values (n\u22644) of 2D perovskite with the 3D perovskite layer with an error of \u00b10.05eV. (<strong>B) <\/strong>Current voltage curves of the champion 3D\/PP-2D n-i-p PSCs as a function of the 2D layer thickness obtained by spin coating different concentration of the 2D perovskite solution in MeCN. (<strong>C) <\/strong>Variation in PCE of the n-i-p and p-i-n planar 3D|PP-2D PSCs as a function of 2D perovskite layer thickness. (<strong>D) <\/strong>External quantum efficiency of the device with and without the 2D layer, showing the absorption and current generation ability of the stack. (<strong>E) <\/strong>ISOS-L-1 stability measured at maximum power point tracking in ambient condition under continuous 1-sun illumination (55 \u030aC) for an epoxy encapsulated PSC. The initial PCE of the control device is 21%, the 3D|2D passivated device, 22.93%, the 3D|PP-2D bilayer PSC, 23.75% and the PP-2D perovskite device is 16.3%.<\/p>\n<\/div><\/div>\n\n\n\n<p>Article published in: Science<\/p>\n\n\n\n<p><a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.abq7652\">&#8216;Deterministic fabrication of 3D\/2D perovskite bilayer stacks for durable and efficient solar cells&#8217;, S.Sidhik, Y. Wang, M. De Siena, R. Asadpour, A. J. Torma, T. Terlier, K. Ho, W. Li, A. B. Puthirath, X. Shuai, A. Agrawal, B. Traore, M. Jones, R. Giridharagopal, P. M. Ajayan, J. Strzalka, D. S. Ginger, C. Katan, M. Ashraful Alam, J. Even, M. G. Kanatzidis, Aditya D. Mohite, <em>Science <strong>377<\/strong>, 1425-1430 (2022<\/em>).<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>September 2022<\/p>\n","protected":false},"author":9,"featured_media":6925,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[36],"tags":[110,44],"class_list":["post-6924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-departement-ohm","tag-perovskites"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["fr","en"],"languages":{"fr":{"title":true,"content":true,"excerpt":true},"en":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/6924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/comments?post=6924"}],"version-history":[{"count":2,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/6924\/revisions"}],"predecessor-version":[{"id":6927,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/6924\/revisions\/6927"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/media\/6925"}],"wp:attachment":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/media?parent=6924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/categories?post=6924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/tags?post=6924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}