Abstract
| Original language | English |
|---|---|
| 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 |
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Keywords
- light emitting diodes
- glass
- image colour analysis
- quantum dots
- visible light communication
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Flexible glass hybridized colloidal quantum dots for Gb/s visible light communications. / Foucher, Caroline; Islim, Mohamed Islim; Guilhabert, Benoit Jack Eloi; Videv, Stefan; Rajbhandari, Sujan; Gomez Diaz, Ariel ; Chun, Hyunchae; Vithanage, Dimali A.; Turnbull, Graham A.; Samuel, Ifor D. W.; Faulkner, Grahame; O'Brien, Dominic C.; Haas, Harald; Laurand, Nicolas; Dawson, Martin D.
In: IEEE Photonics Journal, Vol. 10, No. 1, 28.02.2018.Research output: Contribution to journal › Article
TY - JOUR
T1 - Flexible glass hybridized colloidal quantum dots for Gb/s visible light communications
AU - Foucher, Caroline
AU - Islim, Mohamed Islim
AU - Guilhabert, Benoit Jack Eloi
AU - Videv, Stefan
AU - Rajbhandari, Sujan
AU - Gomez Diaz, Ariel
AU - Chun, Hyunchae
AU - Vithanage, Dimali A.
AU - Turnbull, Graham A.
AU - Samuel, Ifor D. W.
AU - Faulkner, Grahame
AU - O'Brien, Dominic C.
AU - Haas, Harald
AU - Laurand, Nicolas
AU - Dawson, Martin D.
PY - 2018/2/28
Y1 - 2018/2/28
N2 - 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.
AB - 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.
KW - light emitting diodes
KW - glass
KW - image colour analysis
KW - quantum dots
KW - visible light communication
UR - http://ieeexplore.ieee.org/document/8255623/
U2 - 10.1109/JPHOT.2018.2792700
DO - 10.1109/JPHOT.2018.2792700
M3 - Article
VL - 10
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
SN - 1943-0655
IS - 1
ER -