Quantum Dots Enable Next Generation of LED Lightin
Post# of 22456
Posted On: 06/11/2015 7:55:18 AM
Quantum Dots Enable Next Generation of LED Lighting Systems
Now researchers at the University of Hiroshima in Japan have used silicon-based quantum dots for a type of light-emitting diode (LED) that promises to revolutionize lighting systems. The Japanese researchers have fabricated a hybrid inorganic/organic LED that produces white-blue electroluminescence using quantum dots. This white-blue electroluminescence LED promises a next-generation of illumination for flexible lighting and displays.
In research published in the journal Applied Physics Letters, the researchers determined that their quantum dot–based LED could achieve its white-blue luminescence with an applied voltage of 6 volts and reach 78 percent of the effective emission obtained from silicon quantum dots.
To give you sense of how these numbers stack up, about six years ago, the luminescent efficiency of quantum dots used in state-of-the-art electroluminescent LEDs were reduced from more than 90 percent to about 15 percent because the dots had to be packed into an organic film that acted as a transport for the electrons.
The fabrication process involved taking a glass substrate and then depositing conductive polymer solutions and a colloidal silicon quantum dot solution on top of it.
http://spectrum.ieee.org/nanoclast/semiconduc...pectrum%29
..........that 's a big contrast of "packed into" vs "on top of", of course I thought of QDX tm spray on. I'm not saying they had anything to do with QMC, but it does illustrate some potential of applications and efficiencies to be had
Quantum Materials Corp today released their QDX ™ class of rugged Cadmium-free quantum dots with the highest heat, oxidation and moisture resistance available industry-wide. QDX™ Quantum Dots do not degrade under the high heats used in application to film, silicon and polymer and allow for creative LCD display and LED lighting engineering as well as lowering protective barrier film costs.
http://globenewswire.com/news-release/2015/06...bpnpX.dpuf
Now researchers at the University of Hiroshima in Japan have used silicon-based quantum dots for a type of light-emitting diode (LED) that promises to revolutionize lighting systems. The Japanese researchers have fabricated a hybrid inorganic/organic LED that produces white-blue electroluminescence using quantum dots. This white-blue electroluminescence LED promises a next-generation of illumination for flexible lighting and displays.
In research published in the journal Applied Physics Letters, the researchers determined that their quantum dot–based LED could achieve its white-blue luminescence with an applied voltage of 6 volts and reach 78 percent of the effective emission obtained from silicon quantum dots.
To give you sense of how these numbers stack up, about six years ago, the luminescent efficiency of quantum dots used in state-of-the-art electroluminescent LEDs were reduced from more than 90 percent to about 15 percent because the dots had to be packed into an organic film that acted as a transport for the electrons.
The fabrication process involved taking a glass substrate and then depositing conductive polymer solutions and a colloidal silicon quantum dot solution on top of it.
http://spectrum.ieee.org/nanoclast/semiconduc...pectrum%29
..........that 's a big contrast of "packed into" vs "on top of", of course I thought of QDX tm spray on. I'm not saying they had anything to do with QMC, but it does illustrate some potential of applications and efficiencies to be had
Quantum Materials Corp today released their QDX ™ class of rugged Cadmium-free quantum dots with the highest heat, oxidation and moisture resistance available industry-wide. QDX™ Quantum Dots do not degrade under the high heats used in application to film, silicon and polymer and allow for creative LCD display and LED lighting engineering as well as lowering protective barrier film costs.
http://globenewswire.com/news-release/2015/06...bpnpX.dpuf
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