Nature Photonics spotlights our paper (collaboration with Prof. Rajeev Ram of MIT) on the first thermophotonic visible LED. This paper demonstrated a blue Gallium Nitride LED whose performance improve as its temperature rises – potentially eliminating the need for heat sinks which are currently the most expensive part of an LED bulb. This demonstration is also seen as a necessary step towards the realization of 100% efficient visible LEDs – building on our previous work demonstrating 100% infrared LEDs.
http://www.nature.com/nphoton/journal/v9/n12/full/nphoton.2015.229.html