http://www.physorg.com/news151003742.html
http://tinyurl.com/a3d9jz
"The new device achieves a notable reduction in “efficiency droop,” a
well-known phenomenon that provokes LEDs to be most efficient when
receiving low-density currents of electricity, but then to lose
efficiency as higher density currents of electricity are fed into the
device. The cause of this droop is not yet fully understood, but
studies have shown that electron leakage is likely a large part of
the problem."
Makes me think operating with pulsed DC of short enough duration
might also avoid the droop.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
