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Nano Pyramid Texture for High Performance Perovskite-Silicon Tandem Solar Cells
A. Harter, S. Mariotti, A. Cruz, K. Xu, F. Biegalke, A.B. Morales-Vilches, A. Eljarrat, L. Korte, S. Albrecht, B. Stannowski
Perovskites and Other Non-Silicon Materials and Devices, Multijunctions/Tandems
Subtopic: Tandems
Event: 38th European Photovoltaic Solar Energy Conference and Exhibition
Session: 3BV.2.67
ISBN: 3-936338-78-7
0,00 EUR
Document(s): poster


In recentyears monolithic Perovskite-Silicon Tandem(PST)Solar Cellsshowed a dynamic development andhave gained a lot of attractionin scientific researchand industry. Al-Ashouri et al., reported arecordefficiency of 29.15%[1]by using a silicon heterojunction (SHJ) bottom cell with a polished front and random-pyramid rear sideand a nc-SiOxoptical interlayer between both sub-cells to reduce reflection losses[2]. This cell architecture facilitates high-performance top cellsbut still comes with reflection losses due to the flat interfaces and is not attractive for industrial production. Recently Oxford PV released a new world record by reaching 29.52% efficiency[3]. This underlines the remarkable development of this cell architecture. However, to proceed on the roadmap to surpass 30%,differentapproaches to overcome design and processing challenges are possible,as was shown by JoŇ°t, et al.[4].