News and Views
Nature Materials 3, 423 - 424 (2004)
doi:10.1038/nmat1169
Light-emitting devices: From nano-optics to street lights
Mark Stockman1
- Mark Stockman is at the Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA e-mail: mstockman@gsu.edu
Abstract
Nanocrystal quantum dots are excellent emitters of light, but energizing that emission electrically has proved difficult. A newly discovered non-radiative energy-transfer process that allows electron–hole pairs to be generated in quantum wells, and then transferred into quantum dots, could lead to a new generation of ultra-high-efficiency light sources for use at scales ranging from nano-optics to a city block.
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