{"id":15166,"date":"2014-09-09T16:25:39","date_gmt":"2014-09-09T13:25:39","guid":{"rendered":"https:\/\/add-energy.ro\/organic-photovoltaic-technology-what-happens-to-the-sector\/"},"modified":"2014-09-09T16:25:39","modified_gmt":"2014-09-09T13:25:39","slug":"organic-photovoltaic-technology-what-happens-to-the-sector","status":"publish","type":"post","link":"http:\/\/add-energy.ro\/en\/organic-photovoltaic-technology-what-happens-to-the-sector\/","title":{"rendered":"Organic photovoltaic technology – what happens to the sector"},"content":{"rendered":"

\n\t \n<\/p>\n

\n\tConventional<\/span> photovoltaic<\/span> technology<\/span> uses<\/span> large panels<\/span>, heavy,<\/span> opaque<\/span>,<\/span> dark<\/span> silicon<\/span>, and this<\/span> could be<\/span> changed<\/span> soon.<\/span> IK4<\/span>–<\/span>Ikerlan<\/span> Research Center<\/span> is working with<\/span> the University<\/span> UPV<\/span> \/<\/span> EHU-<\/span> Basque<\/span> in<\/span> the European project<\/span> X10D<\/span>,<\/span> to come up with<\/span> alternatives to<\/span> the current<\/span> panels<\/span>.<\/span><\/span>\n<\/p>\n

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\n\tAccording<\/span> phys.org<\/span> what is<\/span> needed to<\/span> improve the functioning of<\/span> cells with<\/span> a large area<\/span> are materials<\/span> whose production<\/span> cost less<\/span> and are able to<\/span> provide greater<\/span> energy efficiency<\/span>.<\/span><\/span>\n<\/p>\n

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\n\tSolar panels<\/span> currently available<\/span> tend to be<\/span> rigid and<\/span> dark<\/span>.<\/span> Organic<\/span> photovoltaic<\/span> technology<\/span>,<\/span> by<\/span> contrast,<\/span> allows<\/span> the fabrication of<\/span> transparent and<\/span> flexible<\/span> solar panels<\/span> in<\/span> a variety<\/span> of colors.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tHowever<\/span>, this technology<\/span> must meet certain<\/span> requirements<\/span> if they<\/span> will<\/span> be accepted<\/span> on the market<\/span>:<\/span> greater efficiency<\/span>,<\/span> durability and<\/span> low<\/span> production<\/span> cost<\/span>.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tThus<\/span>, this research<\/span> aims<\/span> "<\/span>to explore<\/span> new materials<\/span> ability<\/span> to absorb<\/span> solar energy<\/span> and<\/span> to seek<\/span> appropriate strategies<\/span> to move<\/span> from the laboratory to<\/span> real<\/span> operations<\/span>,<\/span>"<\/span> emphasized<\/span> Ikerne<\/span> Etxebarria<\/span>,<\/span> a<\/span> researcher at the<\/span> UPV<\/span> \/<\/span> EHU<\/span> and<\/span> IK4-<\/span> Ikerlan<\/span>.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tThe research team<\/span> analyzed<\/span> and<\/span> the maximum size<\/span> of a cell<\/span> is<\/span> and how<\/span> great is the<\/span> surface.<\/span> Different cells<\/span> with different<\/span> structures and<\/span> surfaces<\/span> have been designed<\/span> for this purpose.<\/span> Once<\/span> the results<\/span> had been<\/span> analyzed<\/span>,<\/span> "<\/span>we found that<\/span> cells<\/span> of approximately 6<\/span> cm 2<\/span> strength<\/span> was directly proportional<\/span> to their size<\/span>.<\/span> In<\/span> larger areas<\/span>, however<\/span>,<\/span> the cell<\/span> performance<\/span> decreases<\/span> considerably<\/span>,<\/span> "underlined<\/span> Etxebarria<\/span>.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tThe investigator<\/span> came to the following<\/span> conclusions<\/span><\/strong>:<\/strong> in order to<\/span> be able<\/span> to<\/span> produce<\/span> a large area<\/span> solar<\/span> cells<\/span>,<\/span> it is necessary to<\/span> build<\/span> modules<\/span> with<\/span> small area<\/span> cells<\/span> are connected<\/span> in series or<\/span> in parallel.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tFor<\/span> the manufacture of the<\/span> modules<\/span> between the<\/span> electrode<\/span> layer<\/span> to be<\/span> structured<\/span>, in other<\/span> words<\/span>,<\/span> the cells must<\/span> be<\/span> connected to each other<\/span>.<\/span> "So far<\/span>,<\/span> the structure<\/span> has been made<\/span> mechanically or<\/span> by laser<\/span>, but<\/span> is the risk of<\/span> damaging the<\/span> substrate<\/span>.<\/span> However,<\/span> in this research<\/span>, we developed<\/span> a new technique<\/span> for<\/span> automatically<\/span> structuring,<\/span> "<\/span>adds<\/span> Ikerne<\/span> Etxebarria<\/span>.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tThis technique involves the<\/span> transformation of<\/span> the structure from<\/span> the substrate surface<\/span> in order<\/span> to<\/span> improve the efficiency of<\/span> the cell.<\/span> A<\/span> further object of this<\/span> research<\/span> was to<\/span> find a<\/span> way<\/span> to manufacture<\/span> highly efficient<\/span> cell<\/span>.<\/span> Therefore<\/span>, the first step<\/span> was to<\/span> optimize<\/span> the<\/span> production<\/span> of cells<\/span> based on<\/span> different polymers<\/span> in order<\/span> to achieve<\/span> maximum efficiency<\/span> of these materials<\/span>;<\/span> Second<\/span>, the polymers<\/span> which absorb light at<\/span> different wavelengths<\/span> were used<\/span> for the production of<\/span> tandem<\/span> cell<\/span> structure<\/span> to<\/span> make it more<\/span> effective.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\t"<\/span>Each<\/span> polymer<\/span> absorbs light<\/span> at a<\/span> different wavelength<\/span>.<\/span> Ideal<\/span> would be<\/span> to take advantage of<\/span> all the<\/span> sunshine,<\/span> but<\/span> there is no<\/span> polymer<\/span> capable of absorbing<\/span> light at<\/span> all wavelengths<\/span>.<\/span> So to<\/span> be able<\/span> to achieve<\/span> efficient use<\/span> of sunlight<\/span>,<\/span> one of the<\/span> possibilities<\/span> is to build<\/span> structures such as<\/span> tandem<\/span> cells<\/span> fabricated<\/span> to fit<\/span> with different<\/span> polymers,<\/span> one above the other<\/span>, "said<\/span> Etxebarria<\/span>.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tThese<\/span> tandem<\/span> structures<\/span> may be<\/span> connected<\/span> in series or<\/span> in parallel.<\/span> "I saw that<\/span>,<\/span> after several<\/span> measurements<\/span>,<\/span> greater efficiency<\/span> is achieved in<\/span> cells<\/span> connected in series<\/span>" added<\/span> the researcher<\/span>.<\/span><\/span>\n<\/p>\n

\n\t \n<\/p>\n

\n\tThe production of<\/span> cells<\/span> and<\/span> polymers<\/span> made<\/span> \u200b\u200busing<\/span> new materials<\/span> will<\/span> be much<\/span> more cost-effective<\/span>,<\/span> since these<\/span> polymers are<\/span> produced<\/span> in the laboratory<\/span> as opposed to<\/span> silicon<\/span> to be operated<\/span>.<\/span><\/span>\n<\/p>\n

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\n\t <\/p>\n","protected":false},"excerpt":{"rendered":"

  Conventional photovoltaic technology uses large panels, heavy, opaque, dark silicon, and this could be changed soon. IK4–Ikerlan Research Center is working with the University UPV \/ EHU- Basque in the European project X10D, to come up with alternatives to the current panels.   According phys.org what is needed to improve the functioning of cells … Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45,374,33,349,250,31],"tags":[],"class_list":["post-15166","post","type-post","status-publish","format-standard","hentry","category-clima-si-mediul-inconjurator","category-climate-and-the-environment-3","category-informatii-din-presa-internationala","category-international-press","category-news","category-stiri-utile-noutati"],"_links":{"self":[{"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/posts\/15166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/comments?post=15166"}],"version-history":[{"count":0,"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/posts\/15166\/revisions"}],"wp:attachment":[{"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/media?parent=15166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/categories?post=15166"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/add-energy.ro\/en\/wp-json\/wp\/v2\/tags?post=15166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}