Hybrid GaN LED with capillary-bonded II–VI MQW color-converting membrane for visible light communications

Joao M M Santos, Brynmor E Jones, Peter J Schlosser, Scott Watson, Johannes Herrnsdorf, Benoit Guilhabert, Jonathan Mckendry, Joel De Jesus, Thor A Garcia, Maria C Tamargo, Anthony E Kelly, Jennifer E Hastie, Nicolas Laurand, Martin D Dawson

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The rapid emergence of gallium-nitride (GaN) light-emitting diodes (LEDs) for solid-state lighting has created a timely opportunity for optical communications using visible light. One important challenge to address this opportunity is to extend the wavelength coverage of GaN LEDs without compromising their modulation properties. Here, a hybrid source for emission at 540 nm consisting of a 450 nm GaN micro-sized LED (micro-LED) with a micron-thick ZnCdSe/ZnCdMgSe multi-quantum-well color-converting membrane is reported. The membrane is liquid-capillary-bonded directly onto the sapphire window of the micro-LED for full hybridization. At an injection current of 100 mA, the color-converted power was found to be 37 μW. At this same current, the −3 dB optical modulation bandwidth of the bare GaN and hybrid micro-LEDs were 79 and 51 MHz, respectively. The intrinsic bandwidth of the color-converting membrane was found to be power-density independent over the range of the micro-LED operation at 145 MHz, which corresponds to a mean carrier lifetime of 1.9 ns.
LanguageEnglish
Article number035012
Number of pages7
JournalSemiconductor Science and Technology
Volume30
Issue number3
Early online date27 Jan 2015
DOIs
Publication statusPublished - Mar 2015

Fingerprint

Gallium nitride
gallium nitrides
Light emitting diodes
optical communication
light emitting diodes
membranes
Color
Membranes
color
bandwidth
Bandwidth
Liquid membranes
Carrier lifetime
Aluminum Oxide
Light modulation
light modulation
Optical communication
carrier lifetime
Sapphire
illuminating

Keywords

  • gallium-nitride
  • light-emitting diodes
  • GaN
  • GaN LED
  • hybrid micro-LED

Cite this

Santos, Joao M M ; Jones, Brynmor E ; Schlosser, Peter J ; Watson, Scott ; Herrnsdorf, Johannes ; Guilhabert, Benoit ; Mckendry, Jonathan ; De Jesus, Joel ; Garcia, Thor A ; Tamargo, Maria C ; Kelly, Anthony E ; Hastie, Jennifer E ; Laurand, Nicolas ; Dawson, Martin D. / Hybrid GaN LED with capillary-bonded II–VI MQW color-converting membrane for visible light communications. In: Semiconductor Science and Technology. 2015 ; Vol. 30, No. 3.
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abstract = "The rapid emergence of gallium-nitride (GaN) light-emitting diodes (LEDs) for solid-state lighting has created a timely opportunity for optical communications using visible light. One important challenge to address this opportunity is to extend the wavelength coverage of GaN LEDs without compromising their modulation properties. Here, a hybrid source for emission at 540 nm consisting of a 450 nm GaN micro-sized LED (micro-LED) with a micron-thick ZnCdSe/ZnCdMgSe multi-quantum-well color-converting membrane is reported. The membrane is liquid-capillary-bonded directly onto the sapphire window of the micro-LED for full hybridization. At an injection current of 100 mA, the color-converted power was found to be 37 μW. At this same current, the −3 dB optical modulation bandwidth of the bare GaN and hybrid micro-LEDs were 79 and 51 MHz, respectively. The intrinsic bandwidth of the color-converting membrane was found to be power-density independent over the range of the micro-LED operation at 145 MHz, which corresponds to a mean carrier lifetime of 1.9 ns.",
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Hybrid GaN LED with capillary-bonded II–VI MQW color-converting membrane for visible light communications. / Santos, Joao M M; Jones, Brynmor E; Schlosser, Peter J; Watson, Scott; Herrnsdorf, Johannes; Guilhabert, Benoit; Mckendry, Jonathan; De Jesus, Joel; Garcia, Thor A; Tamargo, Maria C; Kelly, Anthony E; Hastie, Jennifer E; Laurand, Nicolas; Dawson, Martin D.

In: Semiconductor Science and Technology, Vol. 30, No. 3, 035012, 03.2015.

Research output: Contribution to journalArticle

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T1 - Hybrid GaN LED with capillary-bonded II–VI MQW color-converting membrane for visible light communications

AU - Santos, Joao M M

AU - Jones, Brynmor E

AU - Schlosser, Peter J

AU - Watson, Scott

AU - Herrnsdorf, Johannes

AU - Guilhabert, Benoit

AU - Mckendry, Jonathan

AU - De Jesus, Joel

AU - Garcia, Thor A

AU - Tamargo, Maria C

AU - Kelly, Anthony E

AU - Hastie, Jennifer E

AU - Laurand, Nicolas

AU - Dawson, Martin D

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AB - The rapid emergence of gallium-nitride (GaN) light-emitting diodes (LEDs) for solid-state lighting has created a timely opportunity for optical communications using visible light. One important challenge to address this opportunity is to extend the wavelength coverage of GaN LEDs without compromising their modulation properties. Here, a hybrid source for emission at 540 nm consisting of a 450 nm GaN micro-sized LED (micro-LED) with a micron-thick ZnCdSe/ZnCdMgSe multi-quantum-well color-converting membrane is reported. The membrane is liquid-capillary-bonded directly onto the sapphire window of the micro-LED for full hybridization. At an injection current of 100 mA, the color-converted power was found to be 37 μW. At this same current, the −3 dB optical modulation bandwidth of the bare GaN and hybrid micro-LEDs were 79 and 51 MHz, respectively. The intrinsic bandwidth of the color-converting membrane was found to be power-density independent over the range of the micro-LED operation at 145 MHz, which corresponds to a mean carrier lifetime of 1.9 ns.

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