气候变化领域集成服务门户(CCPortal): A quantitative and spatially resolved analysis of the performance-bottleneck in high efficiency, planar hybrid perovskite solar cells

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DOI	10.1039/c7ee03654j
	A quantitative and spatially resolved analysis of the performance-bottleneck in high efficiency, planar hybrid perovskite solar cells
	Draguta S.; Christians J.A.; Morozov Y.V.; Mucunzi A.; Manser J.S.; Kamat P.V.; Luther J.M.; Kuno M.
发表日期	2018
ISSN	17545692
起始页码	960
结束页码	969
卷号	11 期号:4
英文摘要	Hybrid perovskites represent a potential paradigm shift for the creation of low-cost solar cells. Current power conversion efficiencies (PCEs) exceed 22%. However, despite this, record PCEs are still far from their theoretical Shockley-Queisser limit of 31%. To increase these PCE values, there is a pressing need to understand, quantify and microscopically model charge recombination processes in full working devices. Here, we present a complete microscopic account of charge recombination processes in high efficiency (18-19% PCE) hybrid perovskite (mixed cation and methylammonium lead iodide) solar cells. We employ diffraction-limited optical measurements along with relevant kinetic modeling to establish, for the first time, local photoluminescence quantum yields, trap densities, trapping efficiencies, charge extraction efficiencies, quasi-Fermi-level splitting, and effective PCE estimates. Correlations between these spatially resolved parameters, in turn, allow us to conclude that intrinsic electron traps in the perovskite active layers limit the performance of these state-of-the-art hybrid perovskite solar cells. © 2018 The Royal Society of Chemistry.
英文关键词	Efficiency; Fermi level; Iodine compounds; Layered semiconductors; Lead compounds; Optical data processing; Perovskite; Perovskite solar cells; Charge recombination process; Low-cost solar cells; Performance bottlenecks; Photoluminescence quantum yields; Quasi-Fermi level splitting; Shockley-queisser limits; Spatially resolved analysis; Trapping efficiencies; Solar cells; electron; energy efficiency; extraction method; fuel cell; luminescence; paradigm shift; performance assessment; perovskite; quantitative analysis; quantum mechanics; spatial analysis
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/190263
作者单位	Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, United States; Chemical and Materials Science, National Renewable Energy Laboratory (NREL), Golden, CO 80401, United States; Notre Dame Radiation Laboratory, University of Notre Dame, Notre Dame, IN 46556, United States
推荐引用方式 GB/T 7714	Draguta S.,Christians J.A.,Morozov Y.V.,et al. A quantitative and spatially resolved analysis of the performance-bottleneck in high efficiency, planar hybrid perovskite solar cells[J],2018,11(4).
APA	Draguta S..,Christians J.A..,Morozov Y.V..,Mucunzi A..,Manser J.S..,...&Kuno M..(2018).A quantitative and spatially resolved analysis of the performance-bottleneck in high efficiency, planar hybrid perovskite solar cells.Energy & Environmental Science,11(4).
MLA	Draguta S.,et al."A quantitative and spatially resolved analysis of the performance-bottleneck in high efficiency, planar hybrid perovskite solar cells".Energy & Environmental Science 11.4(2018).