Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications

Caroline  Foucher; Mohamed Islim  Sufyan; Benoit Jack Eloi  Guilhabert; Stefan  Videv; Sujan Rajbhandari; Ariel Gomez  Diaz; Hyunchae  Chun; Dimali A.  Vithanage; Graham A.  Turnbull; Ifor D. W.  Samuel; Grahame  Faulkner; Dominic C.  O’Brien; Harald  Haas; Nicolas  Laurand; Martin D.  Dawson

doi:10.1109/JPHOT.2018.2792700

Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications

Caroline Foucher, Mohamed Islim Sufyan, Benoit Jack Eloi Guilhabert, Stefan Videv, Sujan Rajbhandari, Ariel Gomez Diaz, Hyunchae Chun, Dimali A. Vithanage, Graham A. Turnbull, Ifor D. W. Samuel, Grahame Faulkner, Dominic C. O’Brien, Harald Haas, Nicolas Laurand, Martin D. Dawson

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Abstract

Color converting films of colloidal quantum dots (CQDs) encapsulated with flexible glass are integrated with microsize GaN light emitting diodes (LEDs) in order to form optical sources for high-speed visible light communications (VLC). VLC is an emerging technology that uses white and/or colored light from LEDs to combine illumination and display functions with the transmission of data. The flexible glass/CQD format addresses the issue of limited modulation speed of typical phosphor-converted LEDs while enhancing the photostability of the color converters and facilitating their integration with the LEDs. These structures are less than 70 μm in total thickness and are directly placed in contact with the polished sapphire substrate of 450-nm-emitting LEDs. Blue-to-green, blue-to-orange and blue-to-red conversion with respective forward optical power conversion efficiencies of 13%, 12% and 5.5% are reported. In turn, free-space optical communications up to 1.4 Gb/s VLC is demonstrated. Results show that CQD-converted LEDs pave the way for practical digital lighting/displays with multi-Gb/s capability.

Original language	English
Article number	2200211
Number of pages	12
Journal	IEEE Photonics Journal
Volume	10
Issue number	1
Early online date	12 Jan 2018
DOIs	https://doi.org/10.1109/JPHOT.2018.2792700
Publication status	Published - 21 Feb 2018

Bibliographical note

This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see
http://creativecommons.org/licenses/by/3.0/

© 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

Light emitting diodes
Glass
Image color analysis
Color
Quantum dots
Visible light communication
Optical device fabrication

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10.1109/JPHOT.2018.2792700

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Foucher, C., Sufyan, M. I., Guilhabert, B. J. E., Videv, S., Rajbhandari, S., Diaz, A. G., Chun, H., Vithanage, D. A., Turnbull, G. A., Samuel, I. D. W., Faulkner, G., O’Brien, D. C., Haas, H., Laurand, N., & Dawson, M. D. (2018). Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications. IEEE Photonics Journal, 10(1), Article 2200211. https://doi.org/10.1109/JPHOT.2018.2792700

Foucher, C, Sufyan, MI, Guilhabert, BJE, Videv, S, Rajbhandari, S, Diaz, AG, Chun, H, Vithanage, DA, Turnbull, GA, Samuel, IDW, Faulkner, G, O’Brien, DC, Haas, H, Laurand, N & Dawson, MD 2018, 'Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications', IEEE Photonics Journal, vol. 10, no. 1, 2200211. https://doi.org/10.1109/JPHOT.2018.2792700

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title = "Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications",

abstract = "Color converting films of colloidal quantum dots (CQDs) encapsulated with flexible glass are integrated with microsize GaN light emitting diodes (LEDs) in order to form optical sources for high-speed visible light communications (VLC). VLC is an emerging technology that uses white and/or colored light from LEDs to combine illumination and display functions with the transmission of data. The flexible glass/CQD format addresses the issue of limited modulation speed of typical phosphor-converted LEDs while enhancing the photostability of the color converters and facilitating their integration with the LEDs. These structures are less than 70 μm in total thickness and are directly placed in contact with the polished sapphire substrate of 450-nm-emitting LEDs. Blue-to-green, blue-to-orange and blue-to-red conversion with respective forward optical power conversion efficiencies of 13%, 12% and 5.5% are reported. In turn, free-space optical communications up to 1.4 Gb/s VLC is demonstrated. Results show that CQD-converted LEDs pave the way for practical digital lighting/displays with multi-Gb/s capability.",

keywords = "Light emitting diodes, Glass, Image color analysis, Color, Quantum dots, Visible light communication, Optical device fabrication",

author = "Caroline Foucher and Sufyan, {Mohamed Islim} and Guilhabert, {Benoit Jack Eloi} and Stefan Videv and Sujan Rajbhandari and Diaz, {Ariel Gomez} and Hyunchae Chun and Vithanage, {Dimali A.} and Turnbull, {Graham A.} and Samuel, {Ifor D. W.} and Grahame Faulkner and O{\textquoteright}Brien, {Dominic C.} and Harald Haas and Nicolas Laurand and Dawson, {Martin D.}",

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AU - Faulkner, Grahame

AU - O’Brien, Dominic C.

AU - Haas, Harald

AU - Laurand, Nicolas

AU - Dawson, Martin D.

N1 - This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/ © 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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N2 - Color converting films of colloidal quantum dots (CQDs) encapsulated with flexible glass are integrated with microsize GaN light emitting diodes (LEDs) in order to form optical sources for high-speed visible light communications (VLC). VLC is an emerging technology that uses white and/or colored light from LEDs to combine illumination and display functions with the transmission of data. The flexible glass/CQD format addresses the issue of limited modulation speed of typical phosphor-converted LEDs while enhancing the photostability of the color converters and facilitating their integration with the LEDs. These structures are less than 70 μm in total thickness and are directly placed in contact with the polished sapphire substrate of 450-nm-emitting LEDs. Blue-to-green, blue-to-orange and blue-to-red conversion with respective forward optical power conversion efficiencies of 13%, 12% and 5.5% are reported. In turn, free-space optical communications up to 1.4 Gb/s VLC is demonstrated. Results show that CQD-converted LEDs pave the way for practical digital lighting/displays with multi-Gb/s capability.

AB - Color converting films of colloidal quantum dots (CQDs) encapsulated with flexible glass are integrated with microsize GaN light emitting diodes (LEDs) in order to form optical sources for high-speed visible light communications (VLC). VLC is an emerging technology that uses white and/or colored light from LEDs to combine illumination and display functions with the transmission of data. The flexible glass/CQD format addresses the issue of limited modulation speed of typical phosphor-converted LEDs while enhancing the photostability of the color converters and facilitating their integration with the LEDs. These structures are less than 70 μm in total thickness and are directly placed in contact with the polished sapphire substrate of 450-nm-emitting LEDs. Blue-to-green, blue-to-orange and blue-to-red conversion with respective forward optical power conversion efficiencies of 13%, 12% and 5.5% are reported. In turn, free-space optical communications up to 1.4 Gb/s VLC is demonstrated. Results show that CQD-converted LEDs pave the way for practical digital lighting/displays with multi-Gb/s capability.

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JF - IEEE Photonics Journal

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Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications

Abstract

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Keywords

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