气候变化领域集成服务门户(CCPortal): Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss

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DOI	10.1126/science.abb7167
	Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss
	Jeong M.; Choi I.W.; Go E.M.; Cho Y.; Kim M.; Lee B.; Jeong S.; Jo Y.; Choi H.W.; Lee J.; Bae J.-H.; Kwak S.K.; Kim D.S.; Yang C.
发表日期	2020
ISSN	0036-8075
卷号	369 期号:6511
英文摘要	Further improvement and stabilization of perovskite solar cell (PSC) performance are essential to achieve the commercial viability of next-generation photovoltaics. Considering the benefits of fluorination to conjugated materials for energy levels, hydrophobicity, and noncovalent interactions, two fluorinated isomeric analogs of the well-known hole-transporting material (HTM) Spiro-OMeTAD are developed and used as HTMs in PSCs. The structure-property relationship induced by constitutional isomerism is investigated through experimental, atomistic, and theoretical analyses, and the fabricated PSCs feature high efficiency up to 24.82% (certified at 24.64% with 0.3-volt voltage loss), along with long-term stability in wet conditions without encapsulation (87% efficiency retention after 500 hours). We also achieve an efficiency of 22.31% in the large-area cell. © 2020 The Authors.
英文关键词	energy efficiency; fuel cell; perovskite; solar power; Article; cyclic voltammetry; density functional theory; dynamics; electric potential; fluorination; impedance spectroscopy; light absorption; perovskite solar cell; priority journal; structure activity relation
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244161
作者单位	Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulju-gun, Ulsan, 44919, South Korea; Ulsan Advanced Energy Technology RandD Center, Korea Institute of Energy Research, Nam-gu, Ulsan, 44776, South Korea; School of Electronics Engineering, Kyungpook National University, Daegu, 41566, South Korea; Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
推荐引用方式 GB/T 7714	Jeong M.,Choi I.W.,Go E.M.,et al. Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss[J],2020,369(6511).
APA	Jeong M..,Choi I.W..,Go E.M..,Cho Y..,Kim M..,...&Yang C..(2020).Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss.Science,369(6511).
MLA	Jeong M.,et al."Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss".Science 369.6511(2020).