{"id":22584,"date":"2011-11-17T21:25:20","date_gmt":"2011-11-17T18:25:20","guid":{"rendered":"http:\/\/www.fyysika.ee\/uudised\/?p=22584"},"modified":"2011-11-17T21:25:20","modified_gmt":"2011-11-17T18:25:20","slug":"varvustundlikud-paikesepatareid-pustitasid-rekordi","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=22584","title":{"rendered":"V\u00e4rvustundlikud p\u00e4ikesepatareid p\u00fcstitasid rekordi"},"content":{"rendered":"<p><strong>V\u00e4rvustundlikud Gr\u00e4tzeli p\u00e4ikesepatareid panid paika uue efektiivsusetaloni. Muutes fotoelementide koostist ja v\u00e4rvi, \u00f5nnestus EPFLi teadlastel t\u00f5sta nende energiat rohkem kui 12 protsendini. Uurimust\u00f6\u00f6 tulemused avaldati teadusajakirjas <em>Science<\/em>.<\/strong><\/p>\n<div id=\"attachment_22588\" style=\"width: 310px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2011\/11\/dyesensitize.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-22588\" class=\"size-medium wp-image-22588\" title=\"dyesensitize\" src=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2011\/11\/dyesensitize-300x168.jpg\" alt=\"\" width=\"300\" height=\"168\" srcset=\"https:\/\/www.fyysika.ee\/wp-content\/uploads\/2011\/11\/dyesensitize-300x168.jpg 300w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2011\/11\/dyesensitize-250x140.jpg 250w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2011\/11\/dyesensitize.jpg 324w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-22588\" class=\"wp-caption-text\">Rohelised v\u00e4rvustundlikud p\u00e4ikeseelemendid. Pilt: 011 EPFL<\/p><\/div>\n<p>EPFLi teadlased t\u00f5stsid oma kuulsa Gr\u00e4tzeli fotoelemendi efektiivsust 12,3 protsendini. See tulemus on v\u00f5rreldav praegu turul olevate r\u00e4nip\u00f5histe p\u00e4ikesepaneelide efektiivsusega. Lisaks on langenud selle tehnoloogia kasutuskulud, kirjutab <a href=\"http:\/\/www.physorg.com\/news\/2011-11-dye-sensitized-solar-cells.html\">Physorg.com<\/a>.<\/p>\n<p>Teadlased seadsid endale eesm\u00e4rgiks suurendada v\u00e4rvustundlike fotoelementide efektiivsust, et toota rohkem elektrit. Selleks asendati tavap\u00e4rased v\u00e4rvi koostisosad ruteenium ja jood porf\u00fcriini ja koobaltiga. See kombinatsioon v\u00f5imaldas teadlastel suurendada valguse neeldumist ning t\u00f5sta seega elektronide vahetamise efektiivsust. \u00a0Just see elektronide vahetus substraadi ja v\u00e4rvaine vahel ongi see, mis elektrit toodab.<\/p>\n<p>Gr\u00e4tzeli elemendid kopeerivad taimede fotos\u00fcnteesi protsessi, ning need uued p\u00e4ikesepatareid teevad seda veelgi paremini: uus keemiline koostis annab neile ka rohelise v\u00e4rvuse. See v\u00e4rv suurendab energiat elektriks muundava protsessi efektiivsust: et pealelangevast p\u00e4ikesevalgusest viimast v\u00f5tta, neelab fotoelement spektri k\u00f5ige k\u00f5rgema energiaga valgust ning \u00fctleb \u00fclej\u00e4\u00e4nust(kaasa arvatud rohelisest valgusest) \u00e4ra.<\/p>\n<p>Gr\u00e4tzeli fotoelemente saab kasutada painduvate ning l\u00e4bipaistvate p\u00e4ikesepaneelide valmistamiseks. Need on paljulubavaks alternatiiviks teatud rakendustes, kus tavap\u00e4raseid j\u00e4iku r\u00e4nip\u00f5hiseid paneele kasutada ei saa. Gr\u00e4tzeli fotoelementide teoreetiline maksimumefektiivsus on 30% &#8211; r\u00e4nip\u00f5histel elementidel vaid 26%.<\/p>\n<p><a href=\"http:\/\/www.physorg.com\/news\/2011-11-dye-sensitized-solar-cells.html\">Allikas<\/a><\/p>\n<p>Teadusartikkel: &#8220;<a href=\"http:\/\/www.sciencemag.org\/content\/334\/6056\/629\">Porphyrin-Sensitized Solar Cells with Cobalt (II\/III)\u2013Based Redox Electrolyte Exceed 12 Percent Efficiency<\/a>&#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u00e4rvustundlikud Gr\u00e4tzeli p\u00e4ikesepatareid panid paika uue efektiivsusetaloni. Muutes fotoelementide koostist ja v\u00e4rvi, \u00f5nnestus EPFLi teadlastel t\u00f5sta nende energiat rohkem kui 12 protsendini. Uurimust\u00f6\u00f6 tulemused avaldati teadusajakirjas Science. EPFLi teadlased t\u00f5stsid oma kuulsa Gr\u00e4tzeli fotoelemendi efektiivsust 12,3 protsendini. See tulemus on v\u00f5rreldav praegu turul olevate r\u00e4nip\u00f5histe p\u00e4ikesepaneelide efektiivsusega. Lisaks on langenud selle tehnoloogia kasutuskulud, kirjutab Physorg.com. [&hellip;]<\/p>\n","protected":false},"author":32,"featured_media":22588,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[16],"tags":[77,53],"class_list":{"0":"post-22584","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-teadusuudis","8":"tag-kytuseelemendid","9":"tag-tulevikuenergia","10":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/22584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22584"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/22584\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/media\/22588"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}