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Control of perovskite luminescence with metamaterials

Control of perovskite luminescence with metamaterials
Control of perovskite luminescence with metamaterials
We show that luminescence spectra of solution-processable metal-halide perovskite films can be controlled by nanopatterning, leading to up to five-fold increase of luminescence yield. We engineered the optical response of the perovskite films using metamaterial design concepts and, as proof of principle, we fabricated all-perovskite dielectric metasurfaces and hybrid metal-perovskite metamaterials which show significantly enhanced luminescence emission and controlled spectral response throughout the visible region. The all-dielectric metamaterials were engraved by direct focused ion beam milling (FIB) onto thin films of methylammonium lead iodide perovskite (CH3NH3PbI3) spin-coated on quartz substrate. The perovskite metasurfaces show vivid structural color tuning and strong field enhancement, dependent on the geometrical parameters of the nanometer sized metamolecules. We observed up to a five-fold Purcell enhancement of both photo- and cathodo-luminescence emission compared to the unstructured films. We also discuss hybridization of perovskite films with plasmonic metamaterials and metal-semiconductor-metal slab waveguide geometries to provide higher control on the light extraction properties. Our results prove that nanostructuring and hybridization of perovskites with metamaterials are viable routes to engineer tunable structural colour and radiative emission properties on-demand, thus defining a new paradigm to increase the efficiency, control the luminescence spectrum, and improve light extraction and directivity of light-emitting devices.
Adamo, Giorgio
86d0005c-dd15-4d1d-8116-4aa9241b2602
Krishnamoorthy, Harish N.S.
87456c53-9077-4ccf-80b9-44470ad845b9
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Cortecchia, Daniele
41bf2cab-14dd-4979-89ac-ac4acd4a5bf6
So, Jin-Kyu
52a66da7-6776-46c0-b3f1-69d1160869db
Birowosuto, M.D.
26807517-641f-414d-8de3-676a63ec5dd4
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Soci, C.
6e631c6a-0cd5-41f7-ab48-665f09d2f010
Adamo, Giorgio
86d0005c-dd15-4d1d-8116-4aa9241b2602
Krishnamoorthy, Harish N.S.
87456c53-9077-4ccf-80b9-44470ad845b9
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Cortecchia, Daniele
41bf2cab-14dd-4979-89ac-ac4acd4a5bf6
So, Jin-Kyu
52a66da7-6776-46c0-b3f1-69d1160869db
Birowosuto, M.D.
26807517-641f-414d-8de3-676a63ec5dd4
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Soci, C.
6e631c6a-0cd5-41f7-ab48-665f09d2f010

Adamo, Giorgio, Krishnamoorthy, Harish N.S., Gholipour, Behrad, Cortecchia, Daniele, So, Jin-Kyu, Birowosuto, M.D., Zheludev, Nikolai and Soci, C. (2018) Control of perovskite luminescence with metamaterials. SPIE Photonics Europe 2018, Strasbourg Convention & Exhibition Centre, France. 22 - 26 Apr 2018.

Record type: Conference or Workshop Item (Other)

Abstract

We show that luminescence spectra of solution-processable metal-halide perovskite films can be controlled by nanopatterning, leading to up to five-fold increase of luminescence yield. We engineered the optical response of the perovskite films using metamaterial design concepts and, as proof of principle, we fabricated all-perovskite dielectric metasurfaces and hybrid metal-perovskite metamaterials which show significantly enhanced luminescence emission and controlled spectral response throughout the visible region. The all-dielectric metamaterials were engraved by direct focused ion beam milling (FIB) onto thin films of methylammonium lead iodide perovskite (CH3NH3PbI3) spin-coated on quartz substrate. The perovskite metasurfaces show vivid structural color tuning and strong field enhancement, dependent on the geometrical parameters of the nanometer sized metamolecules. We observed up to a five-fold Purcell enhancement of both photo- and cathodo-luminescence emission compared to the unstructured films. We also discuss hybridization of perovskite films with plasmonic metamaterials and metal-semiconductor-metal slab waveguide geometries to provide higher control on the light extraction properties. Our results prove that nanostructuring and hybridization of perovskites with metamaterials are viable routes to engineer tunable structural colour and radiative emission properties on-demand, thus defining a new paradigm to increase the efficiency, control the luminescence spectrum, and improve light extraction and directivity of light-emitting devices.

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More information

Published date: 22 April 2018
Venue - Dates: SPIE Photonics Europe 2018, Strasbourg Convention & Exhibition Centre, France, 2018-04-22 - 2018-04-26

Identifiers

Local EPrints ID: 443207
URI: http://eprints.soton.ac.uk/id/eprint/443207
PURE UUID: 2009b624-3e65-4ade-a4ef-aa259ce5b8e6
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 14 Aug 2020 16:34
Last modified: 15 Aug 2020 01:32

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Contributors

Author: Giorgio Adamo
Author: Harish N.S. Krishnamoorthy
Author: Behrad Gholipour
Author: Daniele Cortecchia
Author: Jin-Kyu So
Author: M.D. Birowosuto
Author: C. Soci

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