气候变化领域集成服务门户(CCPortal): Textured interfaces in monolithic perovskite/silicon tandem solar cells: Advanced light management for improved efficiency and energy yield

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DOI	10.1039/c8ee02469c
	Textured interfaces in monolithic perovskite/silicon tandem solar cells: Advanced light management for improved efficiency and energy yield
	Jošt M.; Köhnen E.; Morales-Vilches A.B.; Lipovšek B.; Jäger K.; Macco B.; Al-Ashouri A.; Krč J.; Korte L.; Rech B.; Schlatmann R.; Topič M.; Stannowski B.; Albrecht S.
发表日期	2018
ISSN	17545692
起始页码	3511
结束页码	3523
卷号	11 期号:12
英文摘要	Efficient light management in monolithic perovskite/silicon tandem solar cells is one of the prerequisites for achieving high power conversion efficiencies (PCEs). Textured silicon wafers can be utilized for light management, however, this is typically not compatible with perovskite solution processing. Here, we instead employ a textured light management (LM) foil on the front-side of a tandem solar cell processed on a wafer with a planar front-side and textured back-side. This way the PCE of monolithic, 2-terminal perovskite/silicon-heterojunction tandem solar cells is significantly improved from 23.4% to 25.5%. Furthermore, we validate an advanced numerical model for our fabricated device and use it to optically optimize a number of device designs with textures at different interfaces with respect to the PCE and energy yield. These simulations predict a slightly lower optimal bandgap of the perovskite top cell in a textured device as compared to a flat one and demonstrate strong interdependency between the bandgap and the texture position in the monolithic stack. We estimate the PCE potential for the best performing both-side textured device to be 32.5% for a perovskite bandgap of 1.66 eV. Furthermore, the results show that under perpendicular illumination conditions, for optimized designs, the LM foil on top of the cell performs only slightly better than a flat anti-reflective coating. However, under diffuse illumination, the benefits of the LM foil are much greater. Finally, we calculate the energy yield for the different device designs, based on true weather data for three different locations throughout the year, taking direct as well as diffuse illumination fully into account. The results further confirm the benefits of front-side texture, even more for BIPV applications. Overall, devices built on a both-side textured silicon wafer perform best. However, we show that devices with textured LM foils on the cell's front-side are a highly efficient alternative. © 2018 The Royal Society of Chemistry.
英文关键词	Antireflection coatings; Energy gap; Perovskite; Perovskite solar cells; Reflective coatings; Silicon solar cells; Silicon wafers; Anti reflective coatings; Diffuse illumination; Fabricated device; High power conversion; Illumination conditions; Solution-processing; Tandem solar cells; Textured silicon wafers; Solar cells; efficiency measurement; energy budget; energy efficiency; equipment; fuel cell; model validation; numerical model; performance assessment; perovskite; silicon; simulation
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190060
作者单位	Young Investigator Group Perovskite Tandem Solar Cells, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Kekuléstraße 5, Berlin, 12489, Germany; PVcomB, Helmholtz Zentrum Berlin für Materialien und Energie, Schwarzschildstr. 3, Berlin, 12489, Germany; University of Ljubljana, Faculty of Electrical Engineering, Tržaška 25, Ljubljana, 1000, Slovenia; Young Investigator Group Nano-SIPPE, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 16, Berlin, 12489, Germany; Institute for Silicon Photovoltaics, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Kekuléstraße 5, Berlin, 12489, Germany
推荐引用方式 GB/T 7714	Jošt M.,Köhnen E.,Morales-Vilches A.B.,et al. Textured interfaces in monolithic perovskite/silicon tandem solar cells: Advanced light management for improved efficiency and energy yield[J],2018,11(12).
APA	Jošt M..,Köhnen E..,Morales-Vilches A.B..,Lipovšek B..,Jäger K..,...&Albrecht S..(2018).Textured interfaces in monolithic perovskite/silicon tandem solar cells: Advanced light management for improved efficiency and energy yield.Energy & Environmental Science,11(12).
MLA	Jošt M.,et al."Textured interfaces in monolithic perovskite/silicon tandem solar cells: Advanced light management for improved efficiency and energy yield".Energy & Environmental Science 11.12(2018).