{"id":38,"date":"2024-11-15T18:16:43","date_gmt":"2024-11-15T18:16:43","guid":{"rendered":"https:\/\/mupages.marshall.edu\/sites\/fan2\/?page_id=38"},"modified":"2024-11-15T18:16:43","modified_gmt":"2024-11-15T18:16:43","slug":"porous-metal-oxide-thin-films-for-dye-sensitized-solar-cell","status":"publish","type":"page","link":"https:\/\/mupages.marshall.edu\/fan2\/porous-metal-oxide-thin-films-for-dye-sensitized-solar-cell\/","title":{"rendered":"Porous Metal Oxide Thin Films for Dye-Sensitized Solar Cell"},"content":{"rendered":"\n<p>The worldwide fossil energy crisis has brought much attention to the pursuit of alternative energy sources.\u00a0 Solar energy is one of the most abundant and green energy supplies.\u00a0 Dye-sensitized solar cell (DSSC) is a low cost photovoltaic device based on an organic sensitizer attached on a porous metal oxide semiconductor followed by an iodide\/tri-iodide contained polymer electrolyte and a counter electrode.\u00a0\u00a0 Figure 1 shows the schematic illustration of DSSC architect and working function.\u00a0 Electrons in dye molecules are excited by sun light incident through the front window.\u00a0 The excited charges inject into TiO<sub>2<\/sub> anode electrode then go outside circuit and reach counter electrode. The electronic charges are transferred to tri-iodide to yield iodide that reduces dye molecule to its original state.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"269\" height=\"196\" src=\"http:\/\/mupages.marshall.edu\/fan2\/wp-content\/uploads\/sites\/225\/2024\/11\/Solarcell.png\" alt=\"\" class=\"wp-image-39\" style=\"width:490px;height:auto\" \/><\/figure>\n\n\n\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/p>\n\n\n\n<p>Figure 1. Schematic illustration of dye-sensitized solar cell. Blue balls are TiO<sub>2<\/sub> nanoparticles attaching dye molecules as purple dots. Redox couple contained polymer electrolyte provides electrons to neutralize excited dye molecules.<\/p>\n\n\n\n<p>Different than traditional and expensive Si-based or p-n junction thin film solar cells, DSSC takes advantages of the high surface area of mesoporous thin films for harboring the light sensitizers.<sup>2<\/sup>\u00a0\u00a0 Porous titanium dioxide has been demonstrated to be the most efficient material to incorporate with dye molecules. This project focuses on the fabrication through a sol-gel method with the assistance of polymer templates as structure directing agents to generate porous structures with pore size ranging from a few to hundreds nanometers.\u00a0 The integrated solar cells are subject to characterization of the photo-electrical energy conversion efficiency using a semiconducting measurement system with an illumination of sun light simulator.<\/p>\n\n\n\n<p>Another goal of this project is the development of new polymer ionic electrolytes with high conductivity and excellent mechanical strength.&nbsp; The polymer gel electrolytes are qualified to fabricate solid state DSSCs and superior to liquid electrolytes in leakage concern.&nbsp; The highly stable and reliable polymer electrolyte potentially improves solar cell quality.&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The worldwide fossil energy crisis has brought much attention to the pursuit of alternative energy sources.\u00a0 Solar energy is one of the most abundant and green energy supplies.\u00a0 Dye-sensitized solar cell (DSSC) is a low cost photovoltaic device based on an organic sensitizer attached on a porous metal oxide semiconductor followed by an iodide\/tri-iodide contained [&hellip;]<\/p>\n","protected":false},"author":268,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-38","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/pages\/38","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/users\/268"}],"replies":[{"embeddable":true,"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/comments?post=38"}],"version-history":[{"count":1,"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/pages\/38\/revisions"}],"predecessor-version":[{"id":41,"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/pages\/38\/revisions\/41"}],"wp:attachment":[{"href":"https:\/\/mupages.marshall.edu\/fan2\/wp-json\/wp\/v2\/media?parent=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}