{"id":204897,"date":"2025-01-30T04:27:01","date_gmt":"2025-01-30T10:27:01","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/01\/ultrafast-imaging-advance-tracks-dark-excitons-precisely-in-time-and-space"},"modified":"2025-01-30T04:27:01","modified_gmt":"2025-01-30T10:27:01","slug":"ultrafast-imaging-advance-tracks-dark-excitons-precisely-in-time-and-space","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/01\/ultrafast-imaging-advance-tracks-dark-excitons-precisely-in-time-and-space","title":{"rendered":"Ultrafast imaging advance tracks dark excitons precisely in time and space"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/ultrafast-imaging-advance-tracks-dark-excitons-precisely-in-time-and-space2.jpg\"><\/a><\/p>\n<p>How can the latest technology, such as solar cells, be improved? An international research team led by the University of G\u00f6ttingen is helping to find answers to questions like this with a new technique. For the first time, the formation of tiny, difficult-to-detect particles\u2014known as dark excitons\u2014can be tracked precisely in time and space. These invisible carriers of energy will play a key role in future solar cells, LEDs and detectors. The results are <a href=\"https:\/\/www.nature.com\/articles\/s41566-024-01568-y\" target=\"_blank\">published<\/a> in Nature Photonics.<\/p>\n<p>Dark excitons are tiny pairs made up of one electron together with the hole it leaves behind when it is excited. They carry energy but cannot emit light (hence the name \u201cdark\u201d). One way to visualize an <a href=\"https:\/\/phys.org\/tags\/exciton\/\" rel=\"tag\" class=\"\">exciton<\/a> is to imagine a balloon (representing the electron) that flies away and leaves behind an empty space (the hole) to which it remains connected by a force known as a Coulomb interaction. Researchers talk about \u201cparticle states\u201d that are difficult to detect but are particularly important in atomically thin, two-dimensional structures in special semiconductor compounds.<\/p>\n<p>In an earlier publication, the research group led by Professor Stefan Mathias from the Faculty of Physics at the University of G\u00f6ttingen was able to show how these dark excitons are created in an unimaginably short time and describe their dynamics with the help of quantum mechanical theory.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How can the latest technology, such as solar cells, be improved? An international research team led by the University of G\u00f6ttingen is helping to find answers to questions like this with a new technique. For the first time, the formation of tiny, difficult-to-detect particles\u2014known as dark excitons\u2014can be tracked precisely in time and space. These [\u2026]<\/p>\n","protected":false},"author":396,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,1617,1633,17],"tags":[],"class_list":["post-204897","post","type-post","status-publish","format-standard","hentry","category-particle-physics","category-quantum-physics","category-solar-power","category-sustainability"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/204897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/396"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=204897"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/204897\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=204897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=204897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=204897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}