LEDdroop mechanism was found to

UCSB team GaN band structure is the use of density functional theory (density-functionaltheory) combination of many-body perturbation theory (many-bodyperturbationtheory) are calculated. Then they use Monte Carlo (MonteCarlo) method to calculate more than 4 10 million steps in the statistical average, before they can obtain Auger recombination rate.

    With the LEDdroop mechanism was found, future research direction will focus on removing or reducing Auger recombination caused by loss. UCSB team paper discusses the three kinds of methods to reduce losses, but had drawbacks. One way is to grow into a K-nitride zinc blende (zinc-blende) lattice structure rather than the usual wurtzite (wurtzite) structure, because it can be pushed to the second conduction band energy of a higher position, but the To grow high-quality zinc-blende structure is not easy. Other practices include the use of stress or a change in InGaAlN to adjust the ratio of energy band structure, but calculations show that these changes are not significantly enhance the LED performance.