The role of photon recycling in perovskite light-emitting diodes

Changsoon Cho; Baodan Zhao; Gregory D. Tainter; Jung-Yong Lee; Richard H. Friend; Dawei Di; Felix Deschler; Neil C. Greenham

doi:10.1038/s41467-020-14401-1

Nature Communications (Jan 2020)

The role of photon recycling in perovskite light-emitting diodes

Changsoon Cho,
Baodan Zhao,
Gregory D. Tainter,
Jung-Yong Lee,
Richard H. Friend,
Dawei Di,
Felix Deschler,
Neil C. Greenham

Affiliations

Changsoon Cho: Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue
Baodan Zhao: Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue
Gregory D. Tainter: Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue
Jung-Yong Lee: School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)
Richard H. Friend: Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue
Dawei Di: Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue
Felix Deschler: Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue
Neil C. Greenham: Cavendish Laboratory, Department of Physics, University of Cambridge, J.J. Thomson Avenue

DOI: https://doi.org/10.1038/s41467-020-14401-1
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 8

Abstract

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Perovskite light-emitting diodes have shown unexpected high external quantum efficiency of 20%, breaking the ray-optics limit. Here Cho et al. reveal that photon recycling is responsible for the enhancement and propose photonic structures to further improve the device efficiency.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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