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Title: Metamaterial enhancement of metal-halide perovskite luminescence
Authors: Adamo, Giorgio
Krishnamoorthy, Harish Natarajan Swaha
Cortecchia, Daniele
Chaudhary, Bhumika
Nalla, Venkatram
Zheludev, Nikolay I.
Soci, Cesare
Keywords: Science::Physics::Optics and light
Issue Date: 2020
Source: Adamo, G., Krishnamoorthy, H. N. S., Cortecchia, D., Chaudhary, B., Nalla, V., Zheludev, N. I., & Soci, C. (2020). Metamaterial enhancement of metal-halide perovskite luminescence. Nano Letters, 20(11), 7906–7911. doi:10.1021/acs.nanolett.0c02571
Project: MOE2016‐T3‐1‐006 
Journal: Nano Letters
Abstract: Metal-halide perovskites are rapidly emerging as solution-processable optical materials for light-emitting applications. Here, we adopt a plasmonic metamaterial approach to enhance photoluminescence emission and extraction of methylammonium lead iodide (MAPbI3) thin films based on the Purcell effect. We show that hybridization of the active metal-halide film with resonant nanoscale sized slits carved into a gold film can yield more than 1 order of magnitude enhancement of luminescence intensity and nearly 3-fold reduction of luminescence lifetime corresponding to a Purcell enhancement factor of more than 300. These results show the effectiveness of resonant nanostructures in controlling metal-halide perovskite light emission properties over a tunable spectral range, a viable approach toward highly efficient perovskite light-emitting devices and single-photon emitters.
ISSN: 1530-6992
DOI: 10.1021/acs.nanolett.0c02571
DOI (Related Dataset): 10.21979/N9/DISCX3
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
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