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. Datta, K. Amarnath, A. Wagner, F. Zhao, Y. Yang, G. Bracesco, A. Phung, N. Zhang, D. Zardetto, V. Najafi, M. Veenstra, S.C. Coletti, G. Mazzarella, L. Creatore, M. Wienk, M.M. Janssen, R.A.J. Weeber, A.W. Zeman, M. Isabella, O. Publication year 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. Subject Budget controlConversion efficiencyCrystallinityHeterojunctionsPassivationPerovskite solar cellsPolycrystalline materialsSilicon compoundsSilicon solar cellsTexturesCrystalline silicon solar cellsCrystalline siliconsHigher efficiencyP-typePhotovoltaicsPolycrystallineResearch and applicationSingle junctionSiO xTandem solar cells To reference this document use: http://resolver.tudelft.nl/uuid:861a502c-04d2-4038-b294-0f6735e65d55 DOI https://doi.org/10.1002/pip.3693 TNO identifier 985323 Publisher John Wiley and Sons Ltd ISSN 1062-7995 Source Progress in Photovoltaics: Research and Applications Document type article Files To receive the publication files, please send an e-mail request to TNO Library.