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Wide-Band-Gap Metal-Free Perovskite for Third-Order Nonlinear Optics

Lookup NU author(s): Dr Dumitru Sirbu, Dr Hei TsuiORCiD, Naseem Alsaif, Susana Iglesias Porras, Dr Pablo Docampo, Professor Noel HealyORCiD

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This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2021.

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Abstract

© This paper establishes the potential of the recently introduced ABX3 metal-free perovskite structures for third-order nonlinear optical processes. The base unit in this family of materials is an ammonium halide octahedra, and it incorporates a large aromatic cation spacer forming the classic perovskite structure. This work shows that the choice of cation is key to the resulting third-order nonlinearity, where the incorporation of "MDABCO"into the structure, a very polar cation, results in a third-order nonlinear refractive index on the order of 10-17 m2 W-1 and high laser damage threshold of 0.8 J cm-2. Owing to its very wide band gap of ∼5.12 eV, this material exhibits a high nonlinear figure of merit across the visible and near-infrared transmission windows. These results show that the metal-free family of perovskite materials is an excellent candidate for nonlinear optics in the important visible and near-infrared wavelength regimes.


Publication metadata

Author(s): Sirbu D, Tsui HCL, Alsaif N, Iglesias-Porras S, Zhang Y, Wang M, Liu M, Peacock AC, Docampo P, Healy N

Publication type: Article

Publication status: Published

Journal: ACS Photonics

Year: 2021

Volume: 8

Issue: 8

Pages: 2450-2458

Print publication date: 18/08/2021

Online publication date: 14/07/2021

Acceptance date: 07/05/2021

Date deposited: 19/08/2021

ISSN (electronic): 2330-4022

Publisher: American Chemical Society

URL: https://doi.org/10.1021/acsphotonics.1c00687

DOI: 10.1021/acsphotonics.1c00687


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Funding

Funder referenceFunder name
EP/S031103/1EPSRC
EP/T010568/1EPSRC

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