Free carriers versus self-trapped excitons at different facets of Ruddlesden–Popper two-dimensional lead halide perovskite single crystals

M Liang, W Lin, Q Zhao, X Zou, Z Lan… - The Journal of …, 2021 - ACS Publications
The physical origin of sub-band gap photoluminescence in Ruddlesden–Poppers two-
dimensional (2D) lead halide perovskites (LHPs) is still under debate. In this paper, we …

Extrinsic nature of the broad photoluminescence in lead iodide-based Ruddlesden–Popper perovskites

S Kahmann, EK Tekelenburg, H Duim… - Nature …, 2020 - nature.com
Two-dimensional metal halide perovskites of Ruddlesden–Popper type have recently
moved into the centre of attention of perovskite research due to their potential for light …

The physics of interlayer exciton delocalization in Ruddlesden–Popper lead halide perovskites

D Giovanni, S Ramesh, M Righetto, JW Melvin Lim… - Nano Letters, 2020 - ACS Publications
Two-dimensional (2D) lead halide Ruddlesden–Popper perovskites (RPP) have recently
emerged as a prospective material system for optoelectronic applications. Their self …

Strong triplet-exciton–LO-phonon coupling in two-dimensional layered organic–inorganic hybrid perovskite single crystal microflakes

Y Wang, F Song, Y Yuan, J Dang, X Xie… - The Journal of …, 2021 - ACS Publications
Two-dimensional (2D) layered hybrid perovskites provide an ideal platform for studying the
properties of excitons. Here, we report on a strong triplet-exciton and longitudinal-optical …

Extrinsic and dynamic edge states of two-dimensional lead halide perovskites

E Shi, S Deng, B Yuan, Y Gao, Akriti, L Yuan… - ACS …, 2019 - ACS Publications
Edges of two-dimensional (2D) halide perovskites are found to exhibit unusual properties
such as enhanced photoluminescence lifetime and reduced photoluminescence emission …

Two origins of broadband emission in multilayered 2D lead iodide perovskites

W Paritmongkol, ER Powers, NS Dahod… - The Journal of …, 2020 - ACS Publications
Broadband emission in lead iodide 2D perovskites has been alternately attributed to self-
trapped excitons (STEs) or permanent structural defects and/or impurities. Here, we …

Layer number dependent exciton dissociation and carrier recombination in 2D Ruddlesden–Popper halide perovskites

J Lu, W Chen, C Zhou, S Yang, C Wang… - Journal of Materials …, 2021 - pubs.rsc.org
It has been a consensus that the exciton binding energies in two-dimensional (2D)
Ruddlesden–Popper perovskites is closely correlated with the number of layers. However …

Impact of the organic cation on the band-edge emission of two-dimensional lead–bromide perovskites

S Kutkan, B Dhanabalan, ML Lin, PH Tan… - Nanoscale, 2023 - pubs.rsc.org
Organic–inorganic low-dimensional layered metal–halide perovskites are semiconductors in
which the optoelectronic properties can be tuned by the material composition and the design …

Momentarily trapped exciton polaron in two-dimensional lead halide perovskites

W Tao, C Zhang, Q Zhou, Y Zhao, H Zhu - Nature communications, 2021 - nature.com
Abstract Two-dimensional (2D) lead halide perovskites with distinct excitonic feature have
shown exciting potential for optoelectronic applications. Compared to their three …

Efficient energy funneling in quasi‐2D perovskites: from light emission to lasing

L Lei, D Seyitliyev, S Stuard, J Mendes… - Advanced …, 2020 - Wiley Online Library
Abstract Quasi‐2D Ruddlesden–Popper halide perovskites with a large exciton binding
energy, self‐assembled quantum wells, and high quantum yield draw attention for …