No new information, but I did read the paper.

Don't hold your breath waiting for the "miracle lights".
We don't exceed unity until we get a narrow gap device down to 30 picowatts.

Hmmm, lemme whip out my slide rule.
<mumble, carry the P, transpose, mumble>
Lessee now, if I wire up 33 million emitters, I'll have a very efficient one watt array.

Sigh!
Next!

Aloha,
Weeze
Weezard Reviewed by Weezard on . Ultra-Efficient LEDs developed by MIT MIT creates LED that cools its surrounding environment | News | Lighting Anyone have any info about these new LEDs? Journal article here: Phys. Rev. Lett. 108, 097403 (2012): Thermoelectrically Pumped Light-Emitting Diodes Operating above Unity Efficiency Rating: 5