{"id":3136,"date":"2026-02-23T09:38:47","date_gmt":"2026-02-23T08:38:47","guid":{"rendered":"https:\/\/www-preprod.cnrs-imn.fr\/anr-epcis\/"},"modified":"2026-04-01T11:59:51","modified_gmt":"2026-04-01T09:59:51","slug":"anr-epcis","status":"publish","type":"page","link":"https:\/\/www.cnrs-imn.fr\/en\/projects-collaborations\/academic-projects\/anr-epcis\/","title":{"rendered":"ANR EPCIS"},"content":{"rendered":"

ANR project<\/p>\n<\/div>

High Efficiency Epitaxial Tandem Cells CIGS-Silicon<\/h2><\/div>
<\/div><\/div>

Dates:<\/strong>
\nOctober 2020 – May 2024<\/p>\n

Project coordinator:<\/strong>
\nFonctions Optiques pour les Technologies de l’informatiON (FOTON Rennes)<\/p>\n

Partner laboratories :<\/strong><\/p>\n

    \n
  • IMN<\/li>\n
  • RIBER Bezons<\/li>\n
  • Ile-de-France Photovoltaic Institute (UMR-IPVF Palaiseau)<\/li>\n
  • Institute for Nanotechnologies (INL Lyon)<\/li>\n<\/ul>\n

    IMN staff involved:<\/strong>
    \nNicolas BARREAU, Eric GAUTRON<\/p>\n<\/div>

    <\/div><\/div>

    PV is growing fast and becoming one of the main pillars of the energy transition. The 30% efficiency target (roadmap published by COP21, initiated by IPVF and named “30-30-30”) will not be achieved with conventional solar cells based on simple junctions. Tandem junctions could theoretically reach 43% by combining a lower VIS\/NIR cell, made of single-crystal Si, with an upper cell absorbing the blue\/UV part of the solar spectrum, which could be made of CIGS and specially optimized with a gap of around 1.7 eV. We propose an innovative approach based on the use of wide-gap III-V intermediate epitaxial layers (GaP-based) between Si and CIGS. We expect the epitaxial structures (CIGS\/III-V\/Substrate Si) prepared in this project to reach 18% at 1.7 eV. Tandem cells (CIGS\/III-V\/Si\/Si substrate) with two terminals and 25% efficiency are proposed at the end of the project.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":0,"parent":3331,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"footnotes":""},"class_list":["post-3136","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/pages\/3136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/comments?post=3136"}],"version-history":[{"count":5,"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/pages\/3136\/revisions"}],"predecessor-version":[{"id":3180,"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/pages\/3136\/revisions\/3180"}],"up":[{"embeddable":true,"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/pages\/3331"}],"wp:attachment":[{"href":"https:\/\/www.cnrs-imn.fr\/en\/wp-json\/wp\/v2\/media?parent=3136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}