气候变化领域集成服务门户(CCPortal): Interface passivation using ultrathin polymer-fullerene films for high-efficiency perovskite solar cells with negligible hysteresis

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DOI	10.1039/c7ee01096f
	Interface passivation using ultrathin polymer-fullerene films for high-efficiency perovskite solar cells with negligible hysteresis
	Peng J.; Wu Y.; Ye W.; Jacobs D.A.; Shen H.; Fu X.; Wan Y.; Duong T.; Wu N.; Barugkin C.; Nguyen H.T.; Zhong D.; Li J.; Lu T.; Liu Y.; Lockrey M.N.; Weber K.J.; Catchpole K.R.; White T.P.
发表日期	2017
ISSN	17545692
起始页码	1792
结束页码	1800
卷号	10 期号:8
英文摘要	Interfacial carrier recombination is one of the dominant loss mechanisms in high efficiency perovskite solar cells, and has also been linked to hysteresis and slow transient responses in these cells. Here we demonstrate an ultrathin passivation layer consisting of a PMMA:PCBM mixture that can effectively passivate defects at or near to the perovskite/TiO2 interface, significantly suppressing interfacial recombination. The passivation layer increases the open circuit voltage of mixed-cation perovskite cells by as much as 80 mV, with champion cells achieving Voc ∼ 1.18 V. As a result, we obtain efficient and stable perovskite solar cells with a steady-state PCE of 20.4% and negligible hysteresis over a large range of scan rates. In addition, we show that the passivated cells exhibit very fast current and voltage response times of less than 3 s under cyclic illumination. This new passivation approach addresses one of the key limitations of current perovskite cells, and paves the way to further efficiency gains through interface engineering. © The Royal Society of Chemistry 2017.
英文关键词	Cell engineering; Efficiency; Hysteresis; Interfaces (materials); Open circuit voltage; Passivation; Perovskite; Polymer films; Polymer solar cells; Solar cells; Ultrathin films; Carrier recombination; Efficiency gain; High-efficiency; Interface engineering; Interface passivation; Passivation layer; Ultrathin polymers; Voltage response; Perovskite solar cells
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/190439
作者单位	Research School of Engineering, Australian National University, Canberra, ACT 2601, Australia; State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-sen University, Guangzhou, 510275, China; Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia; Australian National Fabrication Facility, Department of Electronic Materials Engineering, Research School of Physics and Engineering, Australian National University, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Peng J.,Wu Y.,Ye W.,et al. Interface passivation using ultrathin polymer-fullerene films for high-efficiency perovskite solar cells with negligible hysteresis[J],2017,10(8).
APA	Peng J..,Wu Y..,Ye W..,Jacobs D.A..,Shen H..,...&White T.P..(2017).Interface passivation using ultrathin polymer-fullerene films for high-efficiency perovskite solar cells with negligible hysteresis.Energy & Environmental Science,10(8).
MLA	Peng J.,et al."Interface passivation using ultrathin polymer-fullerene films for high-efficiency perovskite solar cells with negligible hysteresis".Energy & Environmental Science 10.8(2017).