Chinese researchers have successfully transferred gallium nitride (GaN) LEDs emitting diode (LED lighting) growth layer silicon copper layer.Make new copper substrate enabled the GaN crystals to release some of the internal stresses generated when they originally formed. the light output of LED lighting on copper was enhanced by 122 percent.and increase the service life of LED lighting.
The relocation of the LEDs( for LED lighting) produced no obvious deterioration in the crystals' light-emitting region, known as multiple quantum wells.The researchers blame on efficiency improvement, absorbing substrate removal; the insertion of a metal reflector between the LEDs' structure and the copper submount;the elimination of electrode shading, which also reduces efficiency; and the rough surface of the exposed buffer layer, as to improve the crystal orientation.increase of LED lighting efficiency.