{"id":7125,"date":"2018-09-13T11:15:55","date_gmt":"2018-09-13T09:15:55","guid":{"rendered":"https:\/\/www.uni.lu\/fr\/events\/physics-seminar-on-the-role-of-dislocations-in-chalcopyrite-solar-cell-absorbers\/"},"modified":"2018-09-13T11:15:55","modified_gmt":"2018-09-13T09:15:55","slug":"physics-seminar-on-the-role-of-dislocations-in-chalcopyrite-solar-cell-absorbers","status":"publish","type":"events","link":"https:\/\/www.uni.lu\/fr\/events\/physics-seminar-on-the-role-of-dislocations-in-chalcopyrite-solar-cell-absorbers\/","title":{"rendered":"Physics Seminar: On the role of dislocations in chalcopyrite solar cell absorbers"},"content":{"rendered":"<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\"><p><strong>About the topic<\/strong><\/p><p>The structural and electronic properties of Frank partial dislocations in the photovoltaic absorber material Cu (In,Ga)Se2 are studied by means of calculations based on density-functional theory. In line with recent experimental observations, we find that point defect segregation inside and around such dislocation cores is preferred. Furthermore, our results show that decorated Frank partials are non-radiative recombination centers and their annihilation is essential in order to obtain Cu (In,Ga)Se2 absorbers with high conversion efficiencies.<\/p><p><strong>About the speaker<\/strong><\/p><p>Daniel started his studies in Universidad del Norte where he obtained a B.Sc. in electronic engineering.<\/p><p>Afterwards he changed fields and started a M.Sc in applied physics in the same University. In 2011, he<\/p><p>came to Germany to continue his studies and pursued a M.Sc in computational science in Goethe<\/p><p>Universit\u00e4t Frankfurt. Then he started a doctorate in materials science in TU Darmstadt where he<\/p><p>successfully defended his thesis on September 2018.<\/p><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":0,"featured_media":7126,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"featured_image_focal_point":[],"show_featured_caption":false,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"event_start_date":"2018-09-18 16:00:00","event_end_date":"2018-09-18 17:30:00","event_speaker_name":"Dr. Daniel Barragan","event_speaker_link":"","event_is_online":false,"event_location":"Campus Limpertsberg - Batiment des Sciences BSC 3.04","event_street":"","event_location_link":"","event_zip_code":"","event_city":"","event_country":"LU"},"events-topic":[316],"events-type":[],"organisation":[76,25,226],"authorship":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Physics Seminar: On the role of dislocations in chalcopyrite solar cell absorbers - Universit\u00e9 du Luxembourg<\/title>\n<meta name=\"description\" content=\"About the topicThe structural and electronic properties of Frank partial dislocations in the photovoltaic absorber material Cu (In,Ga)Se2 are studied by\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uni.lu\/fr\/events\/physics-seminar-on-the-role-of-dislocations-in-chalcopyrite-solar-cell-absorbers\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Physics Seminar: On the role of dislocations in chalcopyrite solar cell absorbers\" \/>\n<meta property=\"og:description\" content=\"About the topicThe structural and electronic properties of Frank partial dislocations in the photovoltaic absorber material Cu (In,Ga)Se2 are studied by\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.uni.lu\/fr\/events\/physics-seminar-on-the-role-of-dislocations-in-chalcopyrite-solar-cell-absorbers\/\" \/>\n<meta property=\"og:site_name\" content=\"UNI FR\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/uni.lu\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/11\/2026\/03\/03120045\/UNIV_SM-Profile_1600x1600px-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2560\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.uni.lu\/fr\/events\/physics-seminar-on-the-role-of-dislocations-in-chalcopyrite-solar-cell-absorbers\/\",\"url\":\"https:\/\/www.uni.lu\/fr\/events\/physics-seminar-on-the-role-of-dislocations-in-chalcopyrite-solar-cell-absorbers\/\",\"name\":\"Physics Seminar: On the role of dislocations in chalcopyrite solar cell absorbers - 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