LED Module

 White LED used in general lighting field there are still many problems to be solved , first white  LED Bulb LED efficiency , such as the Department of GaInN green, blue and near-UV LED efficiency is still a big margin development .

 In addition , comprehensive energy efficiency improved internal quantum efficiency is the most important item , the internal quantum efficiency of the active layer, the percentage of non-emission recombination percentage of the light-emitting recombination is determined , it can lock the focus on this part of the non-light emitting recombination ,

LED Module

 and try to reduce crystal defects . UV LED turn decreases the bit density can indeed significantly improve the internal quantum efficiency , UV LED for the future must be to further reduce its forwarding bit density . However, this countermeasure against green and blue LED was not significantly affected.

  LED Flexi Strip

Green and blue LED at a low current density ( about 1A/cm2) , have a maximum quantum efficiency at high current density but will decrease the quantum efficiency shown in Figure 7 . From the viewpoint of the cost will want the LED can be driven with a high current density as possible while increasing the output power of the component , so as soon as possible to unlock green and blue LED when a high current density decreased quantum efficiency mechanism and cause the material not only physical characteristics to explore the needs of future applications of this research is to have a key role . The present study shows violet LED ( wavelength of 382nm) is applied even when a high current density (50A/cm2), the quantum efficiency does not decrease .