Print Email Facebook Twitter Crystalline silicon solar cells with thin poly-SiOx carrier-selective passivating contacts for perovskite/c-Si tandem applications Title Crystalline silicon solar cells with thin poly-SiOx carrier-selective passivating contacts for perovskite/c-Si tandem applications Author Singh, M. (TU Delft Photovoltaic Materials and Devices) Amarnath, A. (TU Delft EKL Processing) Wagner, Fabian (Student TU Delft) Zhao, Y. (TU Delft Photovoltaic Materials and Devices) Yang, G. (TU Delft Photovoltaic Materials and Devices) Mazzarella, L. (TU Delft Photovoltaic Materials and Devices) Weeber, A.W. (TU Delft Photovoltaic Materials and Devices; TNO Energy Transition) Zeman, M. (TU Delft Electrical Sustainable Energy) Isabella, O. (TU Delft Photovoltaic Materials and Devices) Department Electrical Sustainable Energy Date 2023 Abstract Single junction crystalline silicon (c-Si) solar cells are reaching their practical efficiency limit whereas perovskite/c-Si tandem solar cells have achieved efficiencies above the theoretical limit of single junction c-Si solar cells. Next to low-thermal budget silicon heterojunction architecture, high-thermal budget carrier-selective passivating contacts (CSPCs) based on polycrystalline-SiOx (poly-SiOx) also constitute a promising architecture for high efficiency perovskite/c-Si tandem solar cells. In this work, we present the development of c-Si bottom cells based on high temperature poly-SiOx CSPCs and demonstrate novel high efficiency four-terminal (4T) and two-terminal (2T) perovskite/c-Si tandem solar cells. First, we tuned the ultra-thin, thermally grown SiOx. Then we optimized the passivation properties of p-type and n-type doped poly-SiOx CSPCs. Here, we have optimized the p-type doped poly-SiOx CSPC on textured interfaces via a two-step annealing process. Finally, we integrated such bottom solar cells in both 4T and 2T tandems, achieving 28.1% and 23.2% conversion efficiency, respectively. To reference this document use: http://resolver.tudelft.nl/uuid:4694d842-4904-4c03-9b12-af8041d98da5 DOI https://doi.org/10.1002/pip.3693 ISSN 1062-7995 Source Progress in Photovoltaics: research and applications, 31 (9), 877-887 Part of collection Institutional Repository Document type journal article Rights © 2023 M. Singh, A. Amarnath, Fabian Wagner, Y. Zhao, G. Yang, L. Mazzarella, A.W. Weeber, M. Zeman, O. Isabella, More Authors Files PDF Progress_in_Photovoltaics ... ective.pdf 2.38 MB Close viewer /islandora/object/uuid:4694d842-4904-4c03-9b12-af8041d98da5/datastream/OBJ/view