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Source: Scientists Develop Novel
Multi-colour Light-emitting Diodes
A team of University of California scientists at Los Alamos National Laboratory have developed the first completely inorganic,
multi-colour light-emitting diodes (LEDs) based on colloidal quantum dots encapsulated in a gallium nitride (GaN) semiconductor. The work represents a new "hybrid" approach to the development of solid-state lighting. Solid-state lighting offers the advantages of reduced operating expenses, lower energy consumption and more reliable performance.
This is one of the many applications I predicted to follow (nanocrystal-based architecture)
as nanotechnology becomes the hottest technology.
White colour LED was the industry's dream for many years and now it is available
thanks to the nanotechnology.
The new LEDs are capable of transmitting two colours simultaneously, hence
complementary colours would be perceived as white. It is also extremely exciting
that the designer can program multiple selections of selectable nanoemitters to
control the frequency of the electromagnetic waves, hence the colour, being
emitted.
[by Hemetis]
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