Visible light communication with efficient far-red/near-infrared polymer light-emitting diodes

Alessandro Minotto; Paul A. Haigh; Łukasz G. Łukasiewicz; Eugenio Lunedei; Daniel T. Gryko; Izzat Darwazeh; Franco Cacialli

doi:10.1038/s41377-020-0314-z

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Visible light communication with efficient far-red/near-infrared polymer light-emitting diodes

Original Articles

- Visible light communication with efficient far-red/near-infrared polymer light-emitting diodes
- Light: Science & Applications Vol. 9, Issue 3, Pages: 708-718(2020)
- Affiliations：
  
  1.Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, London WC1E 6BT, UK
  2.School of Engineering, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK
  3.Communications and Information Systems, University College London, London WC1E 6BT, UK
  4.Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
  5.ISMN-CNR, Institute for the Study of Nanostructured Materials, 40129 Bologna, Italy
- Author bio：
  
  Daniel T. Gryko (dtgryko@icho.edu.pl)
  Izzat Darwazeh(i.darwazeh@ucl.ac.uk)
  Franco Cacialli (f.cacialli@ucl.ac.uk)
- Funds：
- DOI：10.1038/s41377-020-0314-z
  CLC：
- Published：2020，
  
  Published Online：26 April 2020，
  
  Received：17 October 2019，
  
  Revised：02 April 2020，
  
  Accepted：10 April 2020
- Accepted：
Scan QR Code
Minotto, A. et al. Visible light communication with efficient far-red/ near-infrared polymer light-emitting diodes. Light: Science & Applications, 9, 708-718 (2020).
DOI：

Minotto, A. et al. Visible light communication with efficient far-red/ near-infrared polymer light-emitting diodes. Light: Science & Applications, 9, 708-718 (2020). DOI： 10.1038/s41377-020-0314-z.

摘要

Abstract

Visible light communication (VLC) is a wireless technology that relies on optical intensity modulation and is potentially a game changer for internet-of-things (IoT) connectivity. However

VLC is hi

ndered by the low penetration depth of visible light in non-transparent media. One solution is to extend operation into the "nearly (in)visible" near-infrared (NIR

700-1000 nm) region

thus also enabling VLC in photonic bio-applications

considering the biological tissue NIR semitransparency

while conveniently retaining vestigial red emission to help check the link operativity by simple eye inspection. Here

we report new far-red/NIR organic light-emitting diodes (OLEDs) with a 650-800 nm emission range and external quantum efficiencies among the highest reported in this spectral range (

2.7%

with maximum radiance and luminance of 3.5 mW/cm

and 260 cd/m

respectively). With these OLEDs

we then demonstrate a "

real-time

" VLC setup achieving a data rate of 2.2 Mb/s

which satisfies the requirements for IoT and biosensing applications. These are the highest rates ever reported for an online unequalised VLC link based on solution-processed OLEDs.

关键词

Keywords

references

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