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Chirality control in white-light emitting 2D perovskites

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Abstract

The increased interest in white solid-state lighting devices addresses the urgent challenge to develop semiconductors with broad band emission. In recent years, low dimensional hybrid organic/inorganic lead perovskites have shown great potential as single white-light emitters. Herein, we show that it is possible to control the chirality of lead bromide perovskites by incorporating enantiopure (R or S) or racemic (RS) β-methylphenethylammonium. The incorporation of such cations allows us to control the chirality of the resulting materials and yields the first examples of 2D chiral perovskites that emit white light. Furthermore, we demonstrate that these materials exhibit second harmonic generation. Our results demonstrate the potential of this kind of materials for chiroptical applications and non-linear optics.

Graphical abstract: Chirality control in white-light emitting 2D perovskites

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Article information


Submitted
30 Apr 2020
Accepted
04 Jun 2020
First published
04 Jun 2020

J. Mater. Chem. C, 2020, Advance Article
Article type
Paper

Chirality control in white-light emitting 2D perovskites

K. Trujillo-Hernández, G. Rodríguez-López, A. Espinosa-Roa, J. González-Roque, A. P. Gómora-Figueroa, W. Zhang, P. S. Halasyamani, V. Jancik, M. Gembicky, G. Pirruccio and D. Solis-Ibarra, J. Mater. Chem. C, 2020, Advance Article , DOI: 10.1039/D0TC02118K

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