气候变化领域集成服务门户(CCPortal): Large area efficient interface layer free monolithic perovskite/homo-junction-silicon tandem solar cell with over 20% efficiency

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DOI	10.1039/c8ee00689j
	Large area efficient interface layer free monolithic perovskite/homo-junction-silicon tandem solar cell with over 20% efficiency
	Zheng J.; Lau C.F.J.; Mehrvarz H.; Ma F.-J.; Jiang Y.; Deng X.; Soeriyadi A.; Kim J.; Zhang M.; Hu L.; Cui X.; Lee D.S.; Bing J.; Cho Y.; Chen C.; Green M.A.; Huang S.; Ho-Baillie A.W.Y.
发表日期	2018
ISSN	17545692
起始页码	2432
结束页码	2443
卷号	11 期号:9
英文摘要	Monolithic perovskite/silicon tandem solar cells show great promise for further efficiency enhancement for current silicon photovoltaic technology. In general, an interface (tunnelling or recombination) layer is usually required for electrical contact between the top and the bottom cells, which incurs higher fabrication costs and parasitic absorption. Most of the monolithic perovskite/Si tandem cells demonstrated use a hetero-junction silicon (Si) solar cell as the bottom cell, on small areas only. This work is the first to successfully integrate a low temperature processed (≤150 °C) planar CH3NH3PbI3 perovskite solar cell on a homo-junction silicon solar cell to achieve a monolithic tandem without the use of an additional interface layer on large areas (4 and 16 cm2). Solution processed SnO2 has been effective in providing dual functions in the monolithic tandem, serving as an ETL for the perovskite cell and as a recombination contact with the n-type silicon homo-junction solar cell that has a boron doped p-type (p++) front emitter. The SnO2/p++ Si interface is characterised in this work and the dominant transport mechanism is simulated using Sentaurus technology computer-aided design (TCAD) modelling. The champion device on 4 cm2 achieves a power conversion efficiency (PCE) of 21.0% under reverse-scanning with a VOC of 1.68 V, a JSC of 16.1 mA cm-2 and a high FF of 78% yielding a steady-state efficiency of 20.5%. As our monolithic tandem device does not rely on the SnO2 for lateral conduction, which is managed by the p++ emitter, up scaling to large areas becomes relatively straightforward. On a large area of 16 cm2, a reverse scan PCE of 17.6% and a steady-state PCE of 17.1% are achieved. To our knowledge, these are the most efficient perovskite/homo-junction-silicon tandem solar cells that are larger than 1 cm2. Most importantly, our results demonstrate for the first time that monolithic perovskite/silicon tandem solar cells can be achieved with excellent performance without the need for an additional interface layer. This work is relevant to the commercialisation of efficient large-area perovskite/homo-junction silicon tandem solar cells. © 2018 The Royal Society of Chemistry.
英文关键词	Computer aided design; Efficiency; Electronic design automation; Perovskite; Perovskite solar cells; Solar cells; Solar power generation; Temperature; Efficiency enhancement; Electrical contacts; Power conversion efficiencies; Silicon photovoltaic; Solution-processed; Steady-state efficiency; Technology computer aided design; Transport mechanism; Silicon solar cells; commercialization; computer aided design; drag coefficient; electrical power; energy efficiency; equipment; fuel cell; inorganic compound; low temperature; performance assessment; perovskite; photovoltaic system; silicon; temperature effect
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/190141
作者单位	Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia; College of Energy, Xiamen University, Xiamen, 361005, China
推荐引用方式 GB/T 7714	Zheng J.,Lau C.F.J.,Mehrvarz H.,et al. Large area efficient interface layer free monolithic perovskite/homo-junction-silicon tandem solar cell with over 20% efficiency[J],2018,11(9).
APA	Zheng J..,Lau C.F.J..,Mehrvarz H..,Ma F.-J..,Jiang Y..,...&Ho-Baillie A.W.Y..(2018).Large area efficient interface layer free monolithic perovskite/homo-junction-silicon tandem solar cell with over 20% efficiency.Energy & Environmental Science,11(9).
MLA	Zheng J.,et al."Large area efficient interface layer free monolithic perovskite/homo-junction-silicon tandem solar cell with over 20% efficiency".Energy & Environmental Science 11.9(2018).