{"id":168408,"date":"2023-07-26T22:23:22","date_gmt":"2023-07-27T03:23:22","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/07\/new-study-reveals-spin-in-quantum-dots-carrier-multiplication"},"modified":"2023-07-26T22:23:22","modified_gmt":"2023-07-27T03:23:22","slug":"new-study-reveals-spin-in-quantum-dots-carrier-multiplication","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/07\/new-study-reveals-spin-in-quantum-dots-carrier-multiplication","title":{"rendered":"New study reveals spin in quantum dots\u2019 carrier multiplication"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/new-study-reveals-spin-in-quantum-dots-carrier-multiplication2.jpg\"><\/a><\/p>\n<p>A new approach to developing semiconductor materials at tiny scales could help boost applications that rely on converting light to energy. A Los Alamos-led research team incorporated magnetic dopants into specially engineered colloidal quantum dots\u2014nanoscale-size semiconductor crystals\u2014and was able to achieve effects that may power solar cell technology, photo detectors and applications that depend on light to drive chemical reactions.<\/p>\n<p>\u201cIn quantum dots comprising a lead-selenide core and a cadmium-selenide shell, manganese ions act as tiny magnets whose magnetic spins strongly interact with both the core and the shell of the quantum dot,\u201d said Victor Klimov, leader of the Los Alamos nanotechnology team and the project\u2019s principal investigator. \u201cIn the course of these interactions, energy can be transferred to and from the manganese ion by flipping its spin\u2014a process commonly termed spin exchange.\u201d<\/p>\n<p>In spin-exchange <a href=\"https:\/\/phys.org\/tags\/carrier\/\" rel=\"tag\" class=\"\">carrier<\/a> multiplication, a single absorbed photon generates not one but two <a href=\"https:\/\/phys.org\/tags\/electron-hole+pairs\/\" rel=\"tag\" class=\"\">electron-hole pairs<\/a>, also known as excitons, which occur as a result of spin-flip relaxation of an excited manganese ion.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new approach to developing semiconductor materials at tiny scales could help boost applications that rely on converting light to energy. A Los Alamos-led research team incorporated magnetic dopants into specially engineered colloidal quantum dots\u2014nanoscale-size semiconductor crystals\u2014and was able to achieve effects that may power solar cell technology, photo detectors and applications that depend on [\u2026]<\/p>\n","protected":false},"author":661,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,4,1617,1633,17],"tags":[],"class_list":["post-168408","post","type-post","status-publish","format-standard","hentry","category-chemistry","category-nanotechnology","category-quantum-physics","category-solar-power","category-sustainability"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/168408","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\/661"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=168408"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/168408\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=168408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=168408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=168408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}