Wide-band-gap metal-free perovskite for third-order nonlinear optics

Sirbu, D., Tsui, H. C. L., Alsaif, N., Iglesias-Porras, S., Zhang, Y., Wang, M., Liu, M., Peacock, A. C., Docampo, P. and Healy, N. (2021) Wide-band-gap metal-free perovskite for third-order nonlinear optics. ACS Photonics, 8(8), pp. 2450-2458. (doi: 10.1021/acsphotonics.1c00687)

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.

• Item Type: Articles
• Additional Information: The authors acknowledge the Engineering and Physical Sciences Research Council, EPSRC (EP/S031103/1 and EP/T010568/1), for financial support.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Docampo, Dr Pablo
• Authors: Sirbu, D., Tsui, H. C. L., Alsaif, N., Iglesias-Porras, S., Zhang, Y., Wang, M., Liu, M., Peacock, A. C., Docampo, P., and Healy, N.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: ACS Photonics
• Publisher: American Chemical Society
• ISSN: 2330-4022
• ISSN (Online): 2330-4022
• Published Online: 14 July 2021
• Copyright Holders: Copyright © 2021 American Chemical Society
• First Published: First published in ACS Photonics 8(8): 2450-2458
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
310679		Hybrid Perovskite Heterojunctions (AoE ENG Materials & Manufacturing)	Pablo Docampo	Engineering and Physical Sciences Research Council (EPSRC)	EP/T010568/1	Chemistry