{"id":115530,"date":"2014-11-04T00:00:00","date_gmt":"2014-11-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/mini-modules-and-tandem-organic-solar-cells-strategies-to-improve-device-efficiency\/"},"modified":"2014-11-04T00:00:00","modified_gmt":"2014-11-04T00:00:00","slug":"mini-modules-and-tandem-organic-solar-cells-strategies-to-improve-device-efficiency","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/dispositivos-semiconductores\/mini-modules-and-tandem-organic-solar-cells-strategies-to-improve-device-efficiency\/","title":{"rendered":"Mini-modules and tandem organic solar cells: strategies to improve device efficiency"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ikerne Etxebarria Zubizarreta <\/strong><\/h2>\n<p>A detailed analysis in the limitation of device area for p3ht:pcbm based organic solar cells was carried out by current-voltage, charge extraction and transient photovoltage characterization. Moreover, large area single cell performance was compared to mini-modules of similar active area. As a result, a reduction in the series resistance was observed for the mini-modules improving thus device performance.A roll-to-toll compatible novel patterning technique based on surface modification was also developed for the patterning of the active layer. As a result, 400 \u00c2\u00bfm and 120 \u00c2\u00bfm width patterned lines were achieved for conventional and inverted architecture devices, respectively.In order to achieve high efficiency devices, alternative polymers were tested and optimized in photovoltaic devices. The optimization of the low band gap polymer known as ptb7 was shown in detail. Differences in the working performance of conventional an inverted architecture devices were deeply analyzed.Finally, materials with complementary absorption spectra were stacked together in tandem cells. The performance of devices connected in either series or parallel was studied. Theoretical models were also developed and results were compared to those achieved experimentally.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Mini-modules and tandem organic solar cells: strategies to improve device efficiency<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Mini-modules and tandem organic solar cells: strategies to improve device efficiency <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ikerne Etxebarria Zubizarreta <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 11\/04\/2014<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Roberto Pacios<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: teofilo Rojo aparicio <\/li>\n<li>jan Gilot &#8212; (vocal)<\/li>\n<li>jenny Nelson (vocal)<\/li>\n<li>Mar\u00eda no Campoy quiles (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ikerne Etxebarria Zubizarreta A detailed analysis in the limitation of device area for p3ht:pcbm based organic solar [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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