Show simple item record

dc.contributor.authorBlancon, J.-C.
Stier, A.V.
Tsai, H.
Nie, W.
Stoumpos, C.C.
Traoré, B.
Pedesseau, L.
Kepenekian, M.
Katsutani, F.
Noe, G.T.
Kono, J.
Tretiak, S.
Crooker, S.A.
Katan, C.
Kanatzidis, M.G.
Crochet, J.J.
Even, J.
Mohite, A.D.
dc.date.accessioned 2018-09-26T14:52:44Z
dc.date.available 2018-09-26T14:52:44Z
dc.date.issued 2018
dc.identifier.citation Blancon, J.-C., Stier, A.V., Tsai, H., et al.. "Scaling law for excitons in 2D perovskite quantum wells." Nature Communications, 9, (2018) Springer Nature: https://doi.org/10.1038/s41467-018-04659-x.
dc.identifier.urihttps://hdl.handle.net/1911/102717
dc.description.abstract Ruddlesden-Popper halide perovskites are 2D solution-processed quantum wells with a general formula A2A'n-1M n X3n+1, where optoelectronic properties can be tuned by varying the perovskite layer thickness (n-value), and have recently emerged as efficient semiconductors with technologically relevant stability. However, fundamental questions concerning the nature of optical resonances (excitons or free carriers) and the exciton reduced mass, and their scaling with quantum well thickness, which are critical for designing efficient optoelectronic devices, remain unresolved. Here, using optical spectroscopy and 60-Tesla magneto-absorption supported by modeling, we unambiguously demonstrate that the optical resonances arise from tightly bound excitons with both exciton reduced masses and binding energies decreasing, respectively, from 0.221 m0 to 0.186 m0 and from 470 meV to 125 meV with increasing thickness from n equals 1 to 5. Based on this study we propose a general scaling law to determine the binding energy of excitons in perovskite quantum wells of any layer thickness.
dc.language.iso eng
dc.publisher Springer Nature
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/.
dc.title Scaling law for excitons in 2D perovskite quantum wells
dc.type Journal article
dc.citation.journalTitle Nature Communications
dc.citation.volumeNumber 9
dc.identifier.digital s41467-018-04659-x
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1038/s41467-018-04659-x
dc.identifier.pmcid PMC5993799
dc.identifier.pmid 29884900
dc.type.publication publisher version
dc.citation.articleNumber 2254


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.