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DOI	10.1039/c9ee02324k
	Ultrafast laser-annealing of perovskite films for efficient perovskite solar cells
	You P.; Li G.; Tang G.; Cao J.; Yan F.
发表日期	2020
ISSN	17545692
起始页码	1187
结束页码	1196
卷号	13 期号:4
英文摘要	Perovskite solar cells have attracted much attention recently for their high efficiency, ease of preparation and low cost. Here, we report a novel laser-annealing method for perovskite films at a low substrate temperature by scanning laser spots on the film surfaces. An ultrafast crystallization process within a few seconds is realized under a laser with a high intensity and a fast scanning speed. Because the crystalline perovskite phase has a stronger light absorption than the amorphous phase, the fast laser annealing can induce a higher temperature in the former and lead to the selective growth of large perovskite grains. Under optimum conditions, perovskite films with high crystallinity are successfully fabricated, resulting in perovskite solar cells with high power conversion efficiency and good stability. Moreover, a faster laser-annealing process of perovskite films is achieved by using a linear laser beam, which is expected to be a promising technique for the mass production of large-scale perovskite solar cells. © The Royal Society of Chemistry.
英文关键词	Annealing; Conversion efficiency; Crystallinity; Efficiency; Laser beams; Light absorption; Perovskite; Ultrafast lasers; Crystallization process; High crystallinity; High power conversion; Laser annealing process; Low substrate temperature; Optimum conditions; Perovskite grains; Perovskite phase; Perovskite solar cells; absorption; crystallinity; crystallization; detection method; efficiency measurement; fuel cell; high temperature; perovskite
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/189660
作者单位	Department of Applied Physics, Hong Kong Polytechnic University Hung Hom, Kowloon, Hong Kong
推荐引用方式 GB/T 7714	You P.,Li G.,Tang G.,et al. Ultrafast laser-annealing of perovskite films for efficient perovskite solar cells[J],2020,13(4).
APA	You P.,Li G.,Tang G.,Cao J.,&Yan F..(2020).Ultrafast laser-annealing of perovskite films for efficient perovskite solar cells.Energy & Environmental Science,13(4).
MLA	You P.,et al."Ultrafast laser-annealing of perovskite films for efficient perovskite solar cells".Energy & Environmental Science 13.4(2020).