Organic photovoltaics for simultaneous energy harvesting and high-speed MIMO optical wireless communications

Iman Tavakkolnia; Lethy K. Jagadamma; Rui Bian; Pavlos P. Manousiadis; Stefan Videv; Graham A. Turnbull; Ifor D. W. Samuel; Harald Haas

doi:10.1038/s41377-021-00487-9

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Organic photovoltaics for simultaneous energy harvesting and high-speed MIMO optical wireless communications

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- Organic photovoltaics for simultaneous energy harvesting and high-speed MIMO optical wireless communications
- Light: Science & Applications Vol. 10, Issue 3, Pages: 379-389(2021)
- Affiliations：
  
  1.LiFi Research and Development Centre, Department of Electronic & Electrical Engineering, The University of Strathclyde, Technology & Innovation Centre, 99 George Street, Glasgow, G1 1RD, UK
  2.Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS, UK
  3.pureLiFi, Rosebery House, 9 Haymarket Terrace, Edinburgh, EH12 5EZ, UK
- Author bio：
  
  Graham A. Turnbull (gat@st-andrews.ac.uk)
  Ifor D. W. Samuel (idws@st-andrews.ac.uk)
  Harald Haas (harald.haas@strath.ac.uk)
- Funds：
- DOI：10.1038/s41377-021-00487-9
  CLC：
- Published：31 March 2021，
  
  Published Online：23 February 2021，
  
  Received：24 June 2020，
  
  Revised：09 January 2021，
  
  Accepted：02 February 2021
- Accepted：
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Tavakkolnia, I. et al. Organic photovoltaics for simultaneous energy harvesting and high-speed MIMO optical wireless communications. Light: Science & Applications 10, 379-389 (2021).
DOI：

Tavakkolnia, I. et al. Organic photovoltaics for simultaneous energy harvesting and high-speed MIMO optical wireless communications. Light: Science & Applications 10, 379-389 (2021). DOI： 10.1038/s41377-021-00487-9.

摘要

Abstract

We show that organic photovoltaics (OPVs) are suitable for high-speed optical wireless data receivers that can also harvest power. In addition

these OPVs are of particular interest for indoor applications

as their bandgap is larger than that of silicon

leading to better matching to the spectrum of artificial light. By selecting a suitable combination of a narrow bandgap donor polymer and a nonfullerene acceptor

stable OPVs are fabricated with a power conversion efficiency of 8.8% under 1 Sun and 14% under indoor lighting conditions. In an optical wireless communication experiment

a data rate of 363 Mb/s and a simultaneous harvested power of 10.9 mW are achieved in a 4-by-4 multiple-input multiple-output (MIMO) setup that consists of four laser diodes

each transmitting 56 mW optical power and four OPV cells on a single panel as receivers at a distance of 40 cm. This result is the highest reported data rate using OPVs as data receivers and energy harvesters. This finding may be relevant to future mobile communication applications because it enables enhanced wireless data communication performance while prolonging the battery life in a mobile device.

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