{"id":32997,"date":"2013-05-14T16:26:06","date_gmt":"2013-05-14T13:26:06","guid":{"rendered":"http:\/\/www.fyysika.ee\/uudised\/?p=32997"},"modified":"2013-05-14T16:32:22","modified_gmt":"2013-05-14T13:32:22","slug":"fluorestseeruva-lisandiga-polumeersed-paiksepaneelid-jalle-parem","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=32997","title":{"rendered":"Fluorestseeruva lisandiga pol\u00fcmeersed p\u00e4iksepaneelid: j\u00e4lle parem"},"content":{"rendered":"

Yale\u2019i \u00dclikooli f\u00fc\u00fcsikud parendasid fluorestsentsainega pol\u00fcmeerse p\u00e4iksepaneeli neeldumisn\u00e4itajat ning energiamuundefektiivsust. Skvaraiinv\u00e4rv (squaraine<\/em>) soodustab paneeli aktiivkihis valguse neeldumist ning elektronide ringlust energiamuundusts\u00fcklis. T\u00f6\u00f6r\u00fchm tahab avastusega p\u00e4iksepaneelituru keskmist hinda s\u00f5elata.<\/strong><\/p>\n

\"\"<\/a>

Piltlik viide pol\u00fcmeerpaneeli siseelule.<\/p><\/div>\n

P\u00e4ikesevalgus on p\u00f5hiline taastuvenergia allikas.Valgust, mida tundub eredamal p\u00e4eval inimsilmale liigagi palju, on aga keeruline elektromotoorj\u00f5uks muundada. Seda siiski tehakse ning kronoloogilises v\u00f5tmes \u00fcha paremini, \u00fcldjuhul p\u00e4iksepaneelidega.<\/p>\n

Pol\u00fcmeerse p\u00e4ikesepaneeli eeliseks on suur katvus ning mehaaniline elastus. Lisaks on need, mis p\u00f5hiline, odavad \u2013 kerged ka. Seevastu on pol\u00fcmeerpaneelid v\u00f5rreldes konkurentidega v\u00e4hemv\u00f5imekad, nende efektiivsus on ligi 8 %. 50 % pol\u00fcmeerkihis neeldunud valgusest l\u00e4heb soojuskadude teed, sest paneeli pol\u00fcmeerahelad ei ole veel piisavalt h\u00e4sti joondatavad. Heade omaduste \u00fclekaalu t\u00f5ttu on teadusmaailma t\u00e4helepanu pol\u00fcmeerpaneelidele suur.<\/p>\n

Skvaraiinv\u00e4rvaine lisamisel fotorakku, mis t\u00f6\u00f6tab F\u00f6ster resonants-energiasiirde (FRET<\/em>) p\u00f5him\u00f5ttel, saavutas Yale\u2019i t\u00f6\u00f6r\u00fchm paneeli energiamuunde efektiivsuses 38 % kasvu.<\/p>\n

FRET-t\u00fc\u00fcpi heterosiirdega pol\u00fcmeer-p\u00e4iksepaneelides saavad laengukandjad liikuda kaugemategi molekulide vahel. Skvaraiin, millel on infrapunases spektriosas tugev neelavus, laiendab paneeli spektraalset neelavust ning parendab \u00fchtlasi raku energiamuundev\u00f5imet.<\/p>\n

Meetod soodustab valgust neelavate materjalikihtide s\u00fcnergilist koost\u00f6\u00f6d. V\u00f5rreldes m\u00f6\u00f6dunud p\u00f5lvkonna pol\u00fcmeerpaneelidega ei vaja skvaraiiniga organiseeritud pol\u00fcmeerv\u00f5rgustiku loodavad laengukandjad elektromotoorv\u00f5rgustikku rakendamiseks j\u00e4relt\u00f6\u00f6tlust.<\/p>\n

5ndal mail ajakirjas Nature Photonics<\/em> avaldatud artikli \u201ePolymer bulk heterojunction solar cells employing F\u00f6erster resonance energy trasnfer\u201c<\/em> autor on Andr\u00e9 D. Taylor.<\/p>\n

Allikas: Phys.org<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Yale\u2019i \u00dclikooli f\u00fc\u00fcsikud parendasid fluorestsentsainega pol\u00fcmeerse p\u00e4iksepaneeli neeldumisn\u00e4itajat ning energiamuundefektiivsust. Skvaraiinv\u00e4rv (squaraine) soodustab paneeli aktiivkihis valguse neeldumist ning elektronide ringlust energiamuundusts\u00fcklis. T\u00f6\u00f6r\u00fchm tahab avastusega p\u00e4iksepaneelituru keskmist hinda s\u00f5elata. P\u00e4ikesevalgus on p\u00f5hiline taastuvenergia allikas.Valgust, mida tundub eredamal p\u00e4eval inimsilmale liigagi palju, on aga keeruline elektromotoorj\u00f5uks muundada. Seda siiski tehakse ning kronoloogilises v\u00f5tmes \u00fcha paremini, \u00fcldjuhul p\u00e4iksepaneelidega. […]<\/p>\n","protected":false},"author":449,"featured_media":32998,"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":[53],"class_list":{"0":"post-32997","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-teadusuudis","8":"tag-tulevikuenergia","9":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/32997","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\/449"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=32997"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/32997\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/media\/32998"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=32997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=32997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=32997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}