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 hindered 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/cm2 and 260 cd/m2, 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.

Minotto, A., Haigh, P., Lukasiewicz, L., Lunedei, E., Gryko, D., Darwazeh, I., et al. (2020). Visible light communication with efficient far-red/near-infrared polymer light-emitting diodes. LIGHT, SCIENCE & APPLICATIONS, 9(1) [10.1038/s41377-020-0314-z].

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

Minotto, A;
2020

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 hindered 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/cm2 and 260 cd/m2, 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.
Articolo in rivista - Articolo scientifico
Biosensing applications; External quantum efficiency; Internet of Things (IOT); Optical intensity modulation; Organic light emitting diodes(OLEDs); Polymer light emitting diode; Visible light communications (VLC); Wireless technologies
English
2020
9
1
70
open
Minotto, A., Haigh, P., Lukasiewicz, L., Lunedei, E., Gryko, D., Darwazeh, I., et al. (2020). Visible light communication with efficient far-red/near-infrared polymer light-emitting diodes. LIGHT, SCIENCE & APPLICATIONS, 9(1) [10.1038/s41377-020-0314-z].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/340937
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