{"id":31421,"date":"2021-01-07T12:40:54","date_gmt":"2021-01-07T12:40:54","guid":{"rendered":"https:\/\/pv-tech.org\/technical-papers\/do-we-really-understand-the-failure-mechanism-of-a-perc-cell\/"},"modified":"2023-07-28T16:06:21","modified_gmt":"2023-07-28T16:06:21","slug":"do-we-really-understand-the-failure-mechanism-of-a-perc-cell","status":"publish","type":"technical-papers","link":"https:\/\/www.pv-tech.org\/technical-papers\/do-we-really-understand-the-failure-mechanism-of-a-perc-cell\/","title":{"rendered":"Do we really understand the failure mechanism of a PERC cell?"},"content":{"rendered":"<p>By Haidan Gong, Minge Gao, Yiwei Guo, Jian Wang; Wuxi Suntech Power Co., Ltd. Xiaogang Zhu, Jiayan Lu, Shan Yanyan &amp; Yi Liu; National Center of Supervision &amp; Inspection on Solar Photovoltaic Products Quality (CPVT), Wuxi, Jiangsu, China<\/p>\n<p>Because it leads to higher efficiencies than aluminium back-surface field (Al-BSF) cells, passivated emitter and rear cell (PERC) technology is attracting more and more attention in the industry and gaining market share. However, PERC technology brings new challenges with regard to the phenomenon of degradation: some monofacial\/bifacial PERC cell modules were found to demonstrate much higher power degradation than Al-BSF cell modules after damp-heat (DH: 85\u00b0C and 85% relative humidity RH, 1000h) and potential-induced degradation (PID: 85\u00b0C and 85% RH, \u20131,500V, 96h) tests, which will be the focus of this paper.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Because it leads to higher efficiencies than aluminium back-surface field (Al-BSF) cells, passivated emitter and rear cell (PERC) technology is attracting more and more attention in the industry and gaining market share. However, PERC technology brings new challenges with regard to the phenomenon of degradation: some monofacial\/bifacial PERC cell modules were found to demonstrate much higher power degradation than Al-BSF cell modules after damp-heat (DH: 85\u00b0C and 85% relative humidity RH, 1000h) and potential-induced degradation (PID: 85\u00b0C and 85% RH, \u20131,500V, 96h) tests, which will be the focus of this paper.<\/p>\n","protected":false},"author":1,"featured_media":31422,"template":"","paywall-tags":[8671],"technical-papers-categories":[2921,2929],"class_list":["post-31421","technical-papers","type-technical-papers","status-publish","has-post-thumbnail","hentry","paywall-tags-premium","technical-papers-categories-photovoltaics-international-papers","technical-papers-categories-pv-modules"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.5 (Yoast SEO v25.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Do we really understand the failure mechanism of a PERC cell? - PV Tech<\/title>\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.pv-tech.org\/technical-papers\/do-we-really-understand-the-failure-mechanism-of-a-perc-cell\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Do we really understand the failure mechanism of a PERC cell?\" \/>\n<meta property=\"og:description\" content=\"Because it leads to higher efficiencies than aluminium back-surface field (Al-BSF) cells, passivated emitter and rear cell (PERC) technology is attracting more and more attention in the industry and gaining market share. However, PERC technology brings new challenges with regard to the phenomenon of degradation: some monofacial\/bifacial PERC cell modules were found to demonstrate much higher power degradation than Al-BSF cell modules after damp-heat (DH: 85\u00b0C and 85% relative humidity RH, 1000h) and potential-induced degradation (PID: 85\u00b0C and 85% RH, \u20131,500V, 96h) tests, which will be the focus of this paper.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pv-tech.org\/technical-papers\/do-we-really-understand-the-failure-mechanism-of-a-perc-cell\/\" \/>\n<meta property=\"og:site_name\" content=\"PV Tech\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pages\/PV-Tech\/360525490632679\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-28T16:06:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.pv-tech.org\/wp-content\/uploads\/2021\/02\/Do-we-really-understand-the-failure.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1330\" \/>\n\t<meta property=\"og:image:height\" content=\"805\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@pv_tech\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\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.pv-tech.org\/technical-papers\/do-we-really-understand-the-failure-mechanism-of-a-perc-cell\/\",\"url\":\"https:\/\/www.pv-tech.org\/technical-papers\/do-we-really-understand-the-failure-mechanism-of-a-perc-cell\/\",\"name\":\"Do we really understand the failure mechanism of a PERC cell? 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