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Gb/s visible light communications with colloidal quantum dot color converters

Leitao, Miguel F. and Santos, Joao M. M. and Guilhabert, Benoit and Watson, Scott and Kelly, Anthony E. and Islim, Mohamed S. and Haas, Harald and Dawson, Martin D. and Laurand, Nicolas (2017) Gb/s visible light communications with colloidal quantum dot color converters. IEEE Journal of Selected Topics in Quantum Electronics, 23 (5). ISSN 1077-260X

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Abstract

This paper reports the utilization of colloidal semiconductor quantum dots as color converters for Gb/s visible light communications. We briefly review the design and properties of colloidal quantum dots and discuss them in the context of fast color conversion of InGaN light sources, in particular in view of the effects of self-absorption. This is followed by a description of a CQD/polymer composite format of color converters. We show samples of such color-converting composite emitting at green, yellow/orange and red wavelengths and combine these with a blue-emitting microsize LED to form hybrid sources for wireless visible light communication links. In this way data rates up to 1 Gb/s over distances of a few tens of centimeters have been demonstrated. Finally, we broaden the discussion by considering the possibility for wavelength division multiplexing as well as the use of alternative colloidal semiconductor nanocrystal materials.

Item type: Article
ID code: 60374
Keywords: visible light communications, colloidal quantum dots, semiconductor nanocrustal, GaN, LED, OFDM, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Science > Physics
Faculty of Science > Physics > Institute of Photonics
Technology and Innovation Centre > Photonics
Depositing user: Pure Administrator
Date deposited: 31 Mar 2017 11:11
Last modified: 24 Sep 2017 00:37
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URI: https://strathprints.strath.ac.uk/id/eprint/60374
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