Projects per year
Abstract
Color converting films of colloidal quantum dots (CQDs) encapsulated with flexible glass are integrated with microsize GaN LEDs (μLEDs) 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 μLEDs. 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 μLEDs. 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 |
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Number of pages | 11 |
Journal | IEEE Photonics Journal |
Volume | 10 |
Issue number | 1 |
Early online date | 12 Jan 2018 |
DOIs | |
Publication status | Published - 28 Feb 2018 |
Keywords
- light emitting diodes
- glass
- image colour analysis
- quantum dots
- visible light communication
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Dive into the research topics of 'Flexible glass hybridized colloidal quantum dots for Gb/s visible light communications'. Together they form a unique fingerprint.Projects
- 2 Finished
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Ultra-Parallel Visible Light Communications (UP-VLC)
Dawson, M., Calvez, S. & Watson, I.
EPSRC (Engineering and Physical Sciences Research Council)
1/10/12 → 28/02/17
Project: Research
Datasets
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Colloidal quantum dot with flex-glass encapsulation as color-converter for micro-LED source in visible light communications
Laurand, N. (Supervisor), Foucher, C. (Creator) & Dawson, M. (Supervisor), University of Strathclyde, 15 Dec 2016
DOI: 10.15129/d4d7d1d3-c220-4965-81b4-6a0de3824717
Dataset