Liu, YuqiangLi, YajuanWu, YiliangYang, GuangtaoMazzarella, LuanaProcel-Moya, PaulTamboli, Adele C.Weber, KlausBoccard, MathieuIsabella, OlindoYang, XinboSun, Baoquan2023-12-060927-796Xhttp://hdl.handle.net/1885/307689Photovoltaic (PV) technology offers an economic and sustainable solution to the challenge of increasing energy demand in times of global warming. The world PV market is currently dominated by the homo-junction crystalline silicon (c-Si) PV technology based on high temperature diffused p-n junctions, featuring a low power conversion efficiency (PCE). Recent years have seen the successful development of Si heterojunction technologies, boosting the PCE of c-Si solar cells over 26%. This article reviews the development status of high-efficiency c-Si heterojunction solar cells, from the materials to devices, mainly including hydrogenated amorphous silicon (a-Si:H) based silicon heterojunction technology, polycrystalline silicon (poly-Si) based carrier selective passivating contact technology, metal compounds and organic materials based dopant-free passivating contact technology. The application of silicon heterojunction solar cells for ultra-high efficiency perovskite/c-Si and III-V/c-Si tandem devices is also reviewed. In the last, the perspective, challenge and potential solutions of silicon heterojunction solar cells, as well as the tandem solar cells are discussed.Y. L., Y. L. and B. S. acknowledge the National Natural Science Foundation of China (91833303, 61974098 and 61674108), Jiangsu High Educational Natural Science Foundation (18KJA430012), the National Key Research and Development Program (2016YFA0201900), the 111 Program and Collaborative Innovation Center of Suzhou Nano Science and Technology, the Priority Academic Program Development of Jiangsu Higher Education Institutions and Collaborative Innovation Center of Suzhou Nano Science & Technology. A. T.’s work was supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308 with Alliance for Sustainable Energy, LLC, the Manager and Operator of the National Renewable Energy Laboratory, with funding provided by the Department of Energy Office of Energy Efficiency and Renewable Energy Solar Energy Technologies Office under contract SETP DE-EE00034911. M. B. acknowledges funding from the Swiss National Science Foundation under Ambizione Energy grant ICONS (PZENP2_173627).application/pdfen-AU© 2020 Elsevier B.V.202010.1016/j.mser.2020.1005792022-09-04