The electron gas screening on Coulomb potential can be weakened greatly when Landau levelfilling factor is an even number.
当填充因子为偶数时,其本征能量的绝对值最大,此时电子气对库仑势的屏蔽效应最弱。
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In summary, through this thesis work, it was in details studied that the influence of levelfilling on optical properties of quantum well in both electric field and magnetic field.
But as the well width increase, levelfilling is the main reason for the red-shift of spectrum, Auger recombination and carrier delocalization are the main reason for lower efficiency.