Best practices for measuring emerging light-emitting diode technologies

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The arrival of light-emitting diodes based on new materials is posing challenges for the characterization and comparison of devices in a trusted and consistent manner. Here we provide some advice and guidelines that we hope will benefit the community.

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Fig. 1: Proposed characterization set-ups for emerging LEDs.
Fig. 2: Example of colour instability.

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Acknowledgements

S.D.S. and M.A. acknowledge funding from the European Research Council (ERC) (grant agreement no. 756962 (HYPERION)) and the Marie Skłodowska–Curie actions (grant agreement no. 841386) under the European Union’s Horizon 2020 research and innovation programme. S.D.S. acknowledges support from the Royal Society and Tata Group (UF150033). B.P.R. acknowledges support from the Air Force Office of Scientific Research under award no. FA9550-18-1-0037. R.J.H. acknowledges support from a Visiting Fellowship at Clare Hall and a Leverhulme Trust Visiting Professorship, both at the University of Cambridge, the National Science Foundation (ECCS-1509121 and DMR-1708177), and the University of Minnesota Institute on the Environment. D.C. acknowledges funding from the Royal Society. H.J.B. acknowledges financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) via the Unidad de Excelencia María de Maeztu MDM-2015-0538 and MAT2017-88821-R. J.W. acknowledges support from the Major Research Plan of the National Natural Science Foundation of China (91733302). We acknowledge the EPSRC (EP/M005143/1). We thank P. Conaghan for providing data for the example LED calculations.

Author information

Correspondence to Samuel D. Stranks.

Supplementary information

Supplementary Information

Analysis of device responsivity, geometry, external quantum efficiency and luminance.

Supplementary Data 1

Photopic luminosity function data.

Supplementary Data 2

EL data.

Supplementary Data 3

JV data.

Supplementary Data 4

Photodetector data.

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Anaya, M., Rand, B.P., Holmes, R.J. et al. Best practices for measuring emerging light-emitting diode technologies. Nat. Photonics 13, 818–821 (2019) doi:10.1038/s41566-019-0543-y

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