Scientists developing super efficient light bulb

The light bulb is being developed by the US Department of Energy’s Sandia National Laboratories, and uses a tungsten filament fabricated with an internal crystalline pattern.

The advance also opens up the possibility of increasing the efficiency of thermal photovoltaic applications, say the researchers. The scientists have found that the use of a tungsten lattice in thermal photovoltaics can reach 51% efficiency, compared to the more standard 12% efficiency.

The research is published in this week’s edition of the journal Nature.