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dc.contributor.authorLiu, Wenzhu
dc.contributor.authorShi, Jianhua
dc.contributor.authorZhang, Liping
dc.contributor.authorHan, Anjun
dc.contributor.authorHuang, Shenglei
dc.contributor.authorLi, Xiaodong
dc.contributor.authorPeng, Jun
dc.contributor.authorYang, Yuhao
dc.contributor.authorGao, Yajun
dc.contributor.authorYu, Jian
dc.contributor.authorJiang, Kai
dc.contributor.authorYang, Xinbo
dc.contributor.authorLi, Zhenfei
dc.contributor.authorDu, Junlin
dc.contributor.authorSong, Xin
dc.contributor.authorYu, Youlin
dc.contributor.authorMa, Zhixin
dc.contributor.authorYao, Yubo
dc.contributor.authorZhang, Haichuan
dc.contributor.authorXu, Lujia
dc.contributor.authorKang, Jingxuan
dc.contributor.authorXie, Yi
dc.contributor.authorLiu, Hanyuan
dc.contributor.authorMeng, Fanying
dc.contributor.authorLaquai, Frédéric
dc.contributor.authorDi, Zengfeng
dc.contributor.authorLiu, Zhengxin
dc.date.accessioned2021-06-07T06:40:11Z
dc.date.available2021-06-07T06:40:11Z
dc.date.issued2021-06-03
dc.identifier.urihttp://hdl.handle.net/10754/669424
dc.description.abstractGreat achievements in last five years, such as record-efficient amorphous/crystalline silicon heterojunction (SHJ) solar cells and cutting-edge perovskite/SHJ tandem solar cells, place hydrogenated amorphous silicon (a-Si:H) at the forefront of emerging photovoltaics. Due to the extremely low doping efficiency of trivalent boron (B) in amorphous tetravalent silicon, light harvesting of aforementioned devices are limited by their fill factors (FF), which is a direct metric of the charge carrier transport. It is challenging but crucial to develop highly conductive doped a-Si:H for minimizing the FF losses. Here we report intensive light soaking can efficiently boost the dark conductance of B-doped a-Si:H "thin" films, which is an abnormal Staebler-Wronski effect. By implementing this abnormal effect to SHJ solar cells, we achieve a certificated power conversion efficiency (PCE) of 25.18% (26.05% on designated area) with FF of 85.42% on a 244.63-cm2 wafer. This PCE is one of the highest reported values for total-area "top/rear" contact silicon solar cells. The FF reaches 98.30 per cent of its Shockley-Queisser limit.
dc.publisherarXiv
dc.relation.urlhttps://arxiv.org/pdf/2106.01657.pdf
dc.rightsArchived with thanks to arXiv
dc.titleAbnormal Staebler-Wronski effect of amorphous silicon
dc.typePreprint
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentKing Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955-6900, Saudi Arabia
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterial Science and Engineering Program
dc.eprint.versionPre-print
dc.contributor.institutionResearch Center for New Energy Technology, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences (CAS), Shanghai 201800, China
dc.contributor.institutionZhongwei New Energy (Chengdu) Co., Ltd, Sichuan 610200, China
dc.contributor.institutionResearch School of Electrical, Energy and Materials Engineering, The Australian National University, ACT 2600, Australia
dc.contributor.institutionInstitute of Photovoltaics, Southwest Petroleum University, Sichuan 610500, China
dc.contributor.institutionCollege of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou 215006, China
dc.contributor.institutionSchool of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
dc.contributor.institutionTongwei Solar Co., Ltd, Sichuan 610200, China
dc.contributor.institutionState Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
dc.identifier.arxivid2106.01657
kaust.personGao, Yajun
kaust.personZhang, Haichuan
kaust.personXu, Lujia
kaust.personKang, Jingxuan
kaust.personLaquai, Frederic
refterms.dateFOA2021-06-07T06:42:30Z


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