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DOI	10.1039/d0mh01723j
	Efficient interlayer exciton transport in two-dimensional metal-halide perovskites
	Magdaleno A.J.; Seitz M.; Frising M.; Herranz De La Cruz A.; Fernández-Domínguez A.I.; Prins F.
发表日期	2021
ISSN	20516347
起始页码	639
结束页码	644
卷号	8 期号:2
英文摘要	Two-dimensional (2D) metal-halide perovskites are attractive for use in light harvesting and light emitting devices, presenting improved stability as compared to the more conventional three-dimensional perovskite phases. Significant attention has been paid to influencing the layer orientation of 2D perovskite phases, with the charge-carrier transport through the plane of the material being orders of magnitude more efficient than the interlayer transport. Importantly though, the thinnest members of the 2D perovskite family exhibit strong exciton binding energies, suggesting that interlayer energy transport mediated by dipole-dipole coupling may be relevant. We present transient microscopy measurements of the interlayer energy transport in the (PEA)2PbI4 perovskite. We find efficient interlayer exciton transport (0.06 cm2 s-1), which translates into a diffusion length that exceeds 100 nm and a sub-ps timescale for energy transfer. While still slower than the in-plane exciton transport (0.2 cm2 s-1), our results show that excitonic energy transport is considerably less anisotropic than charge-carrier transport for 2D perovskites. © The Royal Society of Chemistry.
scopus关键词	Binding energy; Carrier transport; Energy transfer; Excitons; Light emission; Perovskite; Dipole-dipole couplings; Exciton-binding energy; Interlayer transport; Layer orientations; Light emitting devices; Orders of magnitude; Two Dimensional (2 D); Two-dimensional metals; Metal halides
来源期刊	Materials Horizons
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177260
作者单位	Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Madrid, 28049, Spain; Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid, 28049, Spain; Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Madrid, 28049, Spain
推荐引用方式 GB/T 7714	Magdaleno A.J.,Seitz M.,Frising M.,et al. Efficient interlayer exciton transport in two-dimensional metal-halide perovskites[J],2021,8(2).
APA	Magdaleno A.J.,Seitz M.,Frising M.,Herranz De La Cruz A.,Fernández-Domínguez A.I.,&Prins F..(2021).Efficient interlayer exciton transport in two-dimensional metal-halide perovskites.Materials Horizons,8(2).
MLA	Magdaleno A.J.,et al."Efficient interlayer exciton transport in two-dimensional metal-halide perovskites".Materials Horizons 8.2(2021).