Toggle Main Menu Toggle Search

Open Access padlockePrints

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

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



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

For re-use rights please refer to the publisher's terms and conditions.


© 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


DOI: 10.1021/acsphotonics.1c00687


Altmetrics provided by Altmetric


Funder referenceFunder name