supported by the National Natural Science Foundation of China (No.60877047);the Natural Science Foundation of Hebei Province (No.2010002002)
Using photonic crystals (PCs), the extraction efficiency of the light-emitting diodes (LEDs) can be greatly enhanced by the effects of photonic band gap (PBG) and grating diffraction. The two theoretical methods are a...
Al-1.1%Sc and A1-2%Sc (mass fraction) alloys were prepared using gas atomized alloy particles. Samples from consolidated alloys were analyzed by XRD for the determination of lattice parameters. Using these lattice p...