Scientists build thinnest-possible LEDs to be stronger, more energy efficient

Scientists have built the thinnest-known LED that can be used as a source of light energy in electronics. The LED is based off of two-dimensional, flexible semiconductors, making it possible to stack or use in much smaller and more diverse applications than current technology allows.
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Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/1pjNEY8LkR4/140310141049.htm