As responsible energy usage is becoming more and more a part of the public conscience, a key practice of this idea emerges. Specifically, using the energy we do have with maximum efficiency. While the laws of thermodynamics remain a limiting factor, research has been done to show that properties of LEDs can allow them to tread the line of what is physically possible and supposedly use less energy than what would otherwise be expected.
An example of such research has been done here, at OSU. The emissions of LEDs with various metallic compositions and activation wavelengths were measured using an apparatus and graphed alongside each other. Multiple trials were done at varying temperatures to evaluate the role the lattice temperature had on the LED emissions.
The resulting data showed a pattern of LED’s reaching a maximum emission voltage before the current passing through them reached their activation wavelengths. In addition, increasing temperatures made this maximum emission occur sooner, though not as strongly as we expected.