气候变化领域集成服务门户(CCPortal): Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells

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DOI	10.1126/science.aba0893
	Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells
	Ni Z.; Bao C.; Liu Y.; Jiang Q.; Wu W.-Q.; Chen S.; Dai X.; Chen B.; Hartweg B.; Yu Z.; Holman Z.; Huang J.
发表日期	2020
ISSN	0036-8075
起始页码	1352
结束页码	1358
卷号	367 期号:6484
英文摘要	We report the profiling of spatial and energetic distributions of trap states in metal halide perovskite single-crystalline and polycrystalline solar cells. The trap densities in single crystals varied by five orders of magnitude, with a lowest value of 2 × 1011 per cubic centimeter and most of the deep traps located at crystal surfaces. The charge trap densities of all depths of the interfaces of the polycrystalline films were one to two orders of magnitude greater than that of the film interior, and the trap density at the film interior was still two to three orders of magnitude greater than that in high-quality single crystals. Suprisingly, after surface passivation, most deep traps were detected near the interface of perovskites and hole transport layers, where a large density of nanocrystals were embedded, limiting the efficiency of solar cells. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	nanocrystal perovskite crystallinity energetics halide metal perovskite photovoltaic system solar power analytic method Article chemical composition crystal structure density drive level capacitance profiling energy transfer magnitude estimation method physical parameters priority journal quality control spatial analysis spectroscopy surface property thermal admittance spectroscopy trap density of states
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133620
推荐引用方式 GB/T 7714	Ni Z.,Bao C.,Liu Y.,et al. Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells[J]. Science,2020,367(6484).
APA	Ni Z..,Bao C..,Liu Y..,Jiang Q..,Wu W.-Q..,...&Huang J..(2020).Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells.,367(6484).
MLA	Ni Z.,et al."Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells".367.6484(2020).