The electron gas screening on Coulomb potential can be weakened greatly when Landau level filling 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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But as the well width increase, level filling is the main reason for the red-shift of spectrum, Auger recombination and carrier delocalization are the main reason for lower efficiency.

当阱宽较大时，能级填充是导致光谱红移的主要原因，俄歇复合与载流子离域是导致效率下降的主要原因。

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But as the well width increase, level filling is the main reason for the red-shift of spectrum, Auger recombination and carrier delocalization are the main reason for lower efficiency.

当阱宽较大时，能级填充是导致光谱红移的主要原因，俄歇复合与载流子离域是导致效率下降的主要原因。

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