{"id":30866,"date":"2013-07-01T15:16:31","date_gmt":"2013-07-01T15:16:31","guid":{"rendered":"https:\/\/silvaco.com\/%eb%b6%84%eb%a5%98%eb%90%98%ec%a7%80-%ec%95%8a%ec%9d%8c\/2d-ibc-shj-solar-cell-simulation-and-optimization\/"},"modified":"2026-10-16T08:50:55","modified_gmt":"2026-10-16T15:50:55","slug":"2d-ibc-shj-solar-cell-simulation-and-optimization","status":"publish","type":"post","link":"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/2d-ibc-shj-solar-cell-simulation-and-optimization\/","title":{"rendered":"2D IBC-SHJ Solar Cell Simulation and Optimization"},"content":{"rendered":"<h1 align=\"left\"><strong>2D IBC-SHJ Solar Cell Simulation and Optimization<\/strong><\/h1>\n<p><strong>Introduction<\/strong><\/p>\n<p>Interdigitated back contact silicon heterojunction (IBC-SHJ) combines the advantages of interdigitated back contact (IBC) and silicon heterojunction (SHJ) solar cells. Having all the contacts at the back of the cell eliminates contact shading, leading to a higher short-circuit current (JSC). Being a heterojunction device, IBC-SHJ also has the potential of higher open circuit voltage (VOC) due to the better surface passivation of the deposited amorphous silicon (a-Si) layer. The low temperature deposition, instead of high temperature diffusion, decreases thermal stress, which is the trend of future silicon solar cells. Rear surface passivation by deposited intrinsic amorphous silicon (a-Si) buffer layer in IBC-SHJ solar cells significantly improves open circuit voltage (VOC) and short circuit current (JSC) but can lead to very low fill factor (FF) with an \u201cS\u201d shape J-V curve. In this paper, methods to optimize IBC-SHJ solar cell with improved FF are discussed and guided by two-dimensional numerical simulation. The modeling of the IBC-SHJ solar cell requires device simulation software operating in two dimensions and incorporating amorphous silicon. To study this innovative structure, we use ATLAS two-dimensional (2-D) device simulation software that provides accurate bulk and interface defects needed to model amorphous silicon. We first present the geometrical structure of the solar cell, then review the general framework of the simulation by specifying the different physical models, and finally examine the simulation results in order to determine the important parameters to achieve high efficiency.<\/p>\n<p><img loading=\"lazy\" width=\"782\" height=\"1012\" src=\"https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2.jpg\" class=\"cleaned-enfold-image\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2.jpg 782w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2-232x300.jpg 232w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2-768x994.jpg 768w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2-545x705.jpg 545w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2-29x37.jpg 29w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2-43x55.jpg 43w, https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2-37x48.jpg 37w\" sizes=\"auto, (max-width: 782px) 100vw, 782px\" \/><\/p>\n<p><a href=\"https:\/\/silvaco.com\/dynamicweb\/jsp\/downloads\/DownloadDocStepsAction.do?req=download&#038;nm=simstd_Q3_2013_a2.pdf\" class=\"BGT-btn\" target=\"_blank\" rel=\"noopener noreferrer\">Download Simulation Standard<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Interdigitated back contact silicon heterojunction (IBC-SHJ) combines the advantages of interdigitated back contact (IBC) and silicon heterojunction (SHJ) solar cells. Having all the contacts at the back of the cell eliminates contact shading, leading to a higher short-circuit current (JSC). Being a heterojunction device, IBC-SHJ also has the potential of higher open circuit voltage (VOC) due to the better surface passivation of the deposited amorphous silicon (a-Si) layer. The low temperature deposition, instead of high temperature diffusion, decreases thermal stress, which is the trend of future silicon solar cells. Rear surface passivation by deposited intrinsic amorphous silicon (a-Si) buffer layer in IBC-SHJ solar cells significantly improves open circuit voltage (VOC) and short circuit current (JSC) but can lead to very low fill factor (FF) with an \u201cS\u201d shape J-V curve. In this paper, methods to optimize IBC-SHJ solar cell with improved FF are discussed and guided by two-dimensional numerical simulation. The modeling of the IBC-SHJ solar cell requires device simulation software operating in two dimensions and incorporating amorphous silicon. To study this innovative structure, we use ATLAS two-dimensional (2-D) device simulation software that provides accurate bulk and interface defects needed to model amorphous silicon. We first present the geometrical structure of the solar cell, then review the general framework of the simulation by specifying the different physical models, and finally examine the simulation results in order to determine the important parameters to achieve high efficiency.<\/p>\n","protected":false},"author":5,"featured_media":19674,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[7486],"tags":[],"class_list":["post-30866","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-simulation-standard-ko","entry","has-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>2D IBC-SHJ Solar Cell Simulation and Optimization - Silvaco<\/title>\n<meta name=\"description\" content=\"Interdigitated back contact silicon heterojunction (IBC-SHJ) combines the advantages of interdigitated back contact (IBC) and silicon heterojunction (SHJ) solar cells.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/2d-ibc-shj-solar-cell-simulation-and-optimization\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2D IBC-SHJ Solar Cell Simulation and Optimization\" \/>\n<meta property=\"og:description\" content=\"Interdigitated back contact silicon heterojunction (IBC-SHJ) combines the advantages of interdigitated back contact (IBC) and silicon heterojunction (SHJ) solar cells.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/2d-ibc-shj-solar-cell-simulation-and-optimization\/\" \/>\n<meta property=\"og:site_name\" content=\"Silvaco\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SilvacoSoftware\/\" \/>\n<meta property=\"article:published_time\" content=\"2013-07-01T15:16:31+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-16T15:50:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/silvaco.com\/wp-content\/uploads\/2020\/03\/simstd_Q3_2013_a2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"782\" \/>\n\t<meta property=\"og:image:height\" content=\"1012\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Ingrid Schwarz\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SilvacoSoftware\" \/>\n<meta name=\"twitter:site\" content=\"@SilvacoSoftware\" \/>\n<meta name=\"twitter:label1\" content=\"\uae00\uc4f4\uc774\" \/>\n\t<meta name=\"twitter:data1\" content=\"Ingrid Schwarz\" \/>\n\t<meta name=\"twitter:label2\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/2d-ibc-shj-solar-cell-simulation-and-optimization\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/2d-ibc-shj-solar-cell-simulation-and-optimization\\\/\"},\"author\":{\"name\":\"Ingrid Schwarz\",\"@id\":\"https:\\\/\\\/silvaco.com\\\/#\\\/schema\\\/person\\\/f85f880bc8a7ce823b36a9072e1f0a29\"},\"headline\":\"2D IBC-SHJ Solar Cell Simulation and Optimization\",\"datePublished\":\"2013-07-01T15:16:31+00:00\",\"dateModified\":\"2026-10-16T15:50:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/2d-ibc-shj-solar-cell-simulation-and-optimization\\\/\"},\"wordCount\":253,\"image\":{\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/2d-ibc-shj-solar-cell-simulation-and-optimization\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/silvaco.com\\\/wp-content\\\/uploads\\\/2020\\\/03\\\/simstd_Q3_2013_a2.jpg\",\"articleSection\":[\"Simulation Standard\"],\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/2d-ibc-shj-solar-cell-simulation-and-optimization\\\/\",\"url\":\"https:\\\/\\\/silvaco.com\\\/ko\\\/simulation-standard-ko\\\/2d-ibc-shj-solar-cell-simulation-and-optimization\\\/\",\"name\":\"2D IBC-SHJ Solar Cell Simulation and Optimization - 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