Quantum dots that produce white light could be the light bulb's successor

Take an LED that produces intense, blue light. Coat it with a thin layer of special microscopic beads called quantum dots. And you have what could become the successor to the venerable light bulb.
The resulting hybrid LED gives off a warm white light with a slightly yellow cast, similar to that of the incandescent lamp.

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<p><a href="http://www.physorg.com/news7421.html">Quantum dots that produce white light could be the light bulb's successor</a></p> <p> Take an LED that produces intense, blue light. Coat it with a thin layer of special microscopic beads called quantum dots. And you have what could become the successor to the venerable light bulb. <br>The resulting hybrid LED gives off a warm white light with a slightly yellow cast, similar to that of the incandescent lamp.</p>