Strong angular and spectral narrowing of electroluminescence in an integrated Tamm-plasmon-driven halide perovskite LED

Zher Ying Ooi, Alberto Jiménez-Solano, Krzysztof Gałkowski, Yuqi Sun, Jordi Ferrer Orri, Kyle Frohna, Hayden Salway, Simon Kahmann, Shenyu Nie, Guadalupe Vega, Shaoni Kar, Michał P. Nowak, Sebastian Maćkowski, Piotr Nyga, Caterina Ducati, Neil C. Greenham, Bettina V. Lotsch, Miguel Anaya () and Samuel D. Stranks ()
Additional contact information
Zher Ying Ooi: University of Cambridge
Alberto Jiménez-Solano: Max Planck Institute for Solid State Research
Krzysztof Gałkowski: University of Cambridge
Yuqi Sun: University of Cambridge
Jordi Ferrer Orri: University of Cambridge
Kyle Frohna: University of Cambridge
Hayden Salway: University of Cambridge
Simon Kahmann: University of Cambridge
Shenyu Nie: University of Cambridge
Guadalupe Vega: Campus de Rabanales
Shaoni Kar: University of Cambridge
Michał P. Nowak: Military University of Technology
Sebastian Maćkowski: Nicolaus Copernicus University
Piotr Nyga: Military University of Technology
Caterina Ducati: University of Cambridge
Neil C. Greenham: University of Cambridge
Bettina V. Lotsch: Max Planck Institute for Solid State Research
Miguel Anaya: University of Cambridge
Samuel D. Stranks: University of Cambridge

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Next-generation light-emitting applications such as displays and optical communications require judicious control over emitted light, including intensity and angular dispersion. To date, this remains a challenge as conventional methods require cumbersome optics. Here, we report highly directional and enhanced electroluminescence from a solution-processed quasi-2-dimensional halide perovskite light-emitting diode by building a device architecture to exploit hybrid plasmonic-photonic Tamm plasmon modes. By exploiting the processing and bandgap tunability of the halide perovskite device layers, we construct the device stack to optimise both optical and charge-injection properties, leading to narrow forward electroluminescence with an angular full-width half-maximum of 36.6° compared with the conventional isotropic control device of 143.9°, and narrow electroluminescence spectral full-width half-maximum of 12.1 nm. The device design is versatile and tunable to work with emission lines covering the visible spectrum with desired directionality, thus providing a promising route to modular, inexpensive, and directional operating light-emitting devices.

Date: 2024
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DOI: 10.1038/s41467-024-49838-1

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