Making light with quantum dots
Already, scientists can generate light from quantum dots, but making a photovoltaic cell that can create a current of electricity is much harder. Here Bulovic shows a thin-film material that lights up in the presence of ultraviolet light.
The box on the table to the right is an example of an LED light made with similar technology. Array Lighting is releasing this year an LED with an Edison screw, which uses 80 percent less energy than comparable incandescent lights. The quality of the light is also comparable to incandescents, said Bulovic.
May 5, 2010 8:31 AM PDT
Photo by: Martin LaMonica
| Caption by: Martin LaMonica
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