Nanopatterning of Perovskite Thin Films for Enhanced and Directional Light Emission

Loreta A. Muscarella; Andrea Cordaro; Georg Krause; Debapriya Pal; Gianluca Grimaldi; Leo Sahaya Daphne Antony; David Langhorst; Adrian Callies; Benedikt Bläsi; Oliver Höhn; A. Femius Koenderink; Albert Polman; Bruno Ehrler

doi:10.1021/acsami.2c09643

Nanopatterning of Perovskite Thin Films for Enhanced and Directional Light Emission

Loreta A. Muscarella
, Andrea Cordaro
, Georg Krause
, Debapriya Pal
, Gianluca Grimaldi
, Leo Sahaya Daphne Antony
, David Langhorst
, Adrian Callies
, Benedikt Bläsi
, Oliver Höhn
, A. Femius Koenderink
, Albert Polman
, Bruno Ehrler

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Lead-halide perovskites offer excellent properties for lighting and display applications. Nanopatterning perovskite films could enable perovskite-based devices with designer properties, increasing their performance and adding novel functionalities. We demonstrate the potential of nanopatterning for achieving light emission of a perovskite film into a specific angular range by introducing periodic sol-gel structures between the injection and emissive layer by using substrate conformal imprint lithography (SCIL). Structural and optical characterization reveals that the emission is funnelled into a well-defined angular range by optical resonances, while the emission wavelength and the structural properties of the perovskite film are preserved. The results demonstrate a flexible and scalable approach to the patterning of perovskite layers, paving the way toward perovskite LEDs with designer angular emission patterns.

Original language	English
Pages (from-to)	38067-38076
Journal	ACS Applied Materials and Interfaces
Volume	14
Issue number	33
DOIs	https://doi.org/10.1021/acsami.2c09643
Publication status	Published - 24 Aug 2022
Externally published	Yes

Funding

The work of L.A.M., A.Co., A.P., and B.E. is part of the Dutch Research Council (NWO). B.E. acknowledges NWO for the Vidi grant no. 016.Vidi.179.005. The work of G.G. was supported by the EPSRC International Centre to Centre grant EP/S030638/1. The work of D.P. is part of the project NanoLED with project number 17100 of the research program High Tech Systems and Materials 2018, which is (partly) financed by the Dutch Research Council (NWO). Fraunhofer ISE is grateful for the Fraunhofer funding (ICON project MEEt). A.C. gratefully acknowledges scholarship support from the Deutsche Bundesstiftung Umwelt (DBU).

Funders	Funder number
EPSRC International Centre to Centre	17100, EP/S030638/1
Deutsche Bundesstiftung Umwelt
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

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Muscarella, L. A., Cordaro, A., Krause, G., Pal, D., Grimaldi, G., Antony, L. S. D., Langhorst, D., Callies, A., Bläsi, B., Höhn, O., Koenderink, A. F., Polman, A., & Ehrler, B. (2022). Nanopatterning of Perovskite Thin Films for Enhanced and Directional Light Emission. ACS Applied Materials and Interfaces, 14(33), 38067-38076. https://doi.org/10.1021/acsami.2c09643

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abstract = "Lead-halide perovskites offer excellent properties for lighting and display applications. Nanopatterning perovskite films could enable perovskite-based devices with designer properties, increasing their performance and adding novel functionalities. We demonstrate the potential of nanopatterning for achieving light emission of a perovskite film into a specific angular range by introducing periodic sol-gel structures between the injection and emissive layer by using substrate conformal imprint lithography (SCIL). Structural and optical characterization reveals that the emission is funnelled into a well-defined angular range by optical resonances, while the emission wavelength and the structural properties of the perovskite film are preserved. The results demonstrate a flexible and scalable approach to the patterning of perovskite layers, paving the way toward perovskite LEDs with designer angular emission patterns.",

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AU - Muscarella, Loreta A.

AU - Cordaro, Andrea

AU - Krause, Georg

AU - Pal, Debapriya

AU - Grimaldi, Gianluca

AU - Antony, Leo Sahaya Daphne

AU - Langhorst, David

AU - Callies, Adrian

AU - Bläsi, Benedikt

AU - Höhn, Oliver

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AU - Polman, Albert

AU - Ehrler, Bruno

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AB - Lead-halide perovskites offer excellent properties for lighting and display applications. Nanopatterning perovskite films could enable perovskite-based devices with designer properties, increasing their performance and adding novel functionalities. We demonstrate the potential of nanopatterning for achieving light emission of a perovskite film into a specific angular range by introducing periodic sol-gel structures between the injection and emissive layer by using substrate conformal imprint lithography (SCIL). Structural and optical characterization reveals that the emission is funnelled into a well-defined angular range by optical resonances, while the emission wavelength and the structural properties of the perovskite film are preserved. The results demonstrate a flexible and scalable approach to the patterning of perovskite layers, paving the way toward perovskite LEDs with designer angular emission patterns.

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Nanopatterning of Perovskite Thin Films for Enhanced and Directional Light Emission

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