{"id":353735,"date":"2024-02-26T08:36:16","date_gmt":"2024-02-26T08:36:16","guid":{"rendered":"\/forum\/forums\/topic\/problem-in-tandem-cell-simulation-in-lumerical-fdtd\/"},"modified":"2024-02-26T08:36:16","modified_gmt":"2024-02-26T08:36:16","slug":"problem-in-tandem-cell-simulation-in-lumerical-fdtd","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-in-tandem-cell-simulation-in-lumerical-fdtd\/","title":{"rendered":"Problem in Tandem cell simulation in Lumerical FDTD"},"content":{"rendered":"<p>I&#8217;ve started to simulate perovskite-silicon tandem solar cell. <strong>But during simulation in fdtd i saw that using solar generation monitor i got about 22 mA\/cm2 current for top perovskite cell and got only 0.5 mA\/cm2 current for bottom silicon cell. That means no light is absorbed in the bottom cell but why this happened?<\/strong> I used the structure which is given in a paper. <strong>Please help me where is the problem and how i got that kinds of result. As the two cells are series connected so the overall current is 0.5 mA\/cm2 and for that the cell efficiency is too low. What should i do now to overcome this problem? use ITO as a interconnected layer between these two cells.<\/strong><\/p>\n<p><strong>I&#8217;ll give the structure which i used to simulate.<\/strong><\/p>\n<p><strong><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/02\/26-02-2024-1708936536-Tandem_Cell.png\" alt=\"\"><\/strong><\/p>\n","protected":false},"template":"","class_list":["post-353735","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["290837","2592","341856"],"_bbp_author_ip":["23.206.193.154"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["404"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["353735"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","290837","341856"],"_bbp_voice_count":["3"],"_bbp_reply_count":["5"],"_bbp_last_reply_id":["361139"],"_bbp_last_active_id":["361139"],"_bbp_last_active_time":["2024-04-08 15:00:55"]},"test":"u1702121student-cuet-ac-bd"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/353735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/353735\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=353735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}