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- Why does a capping layer exist for semiconductor quantum dot fabrication.

Hi everyone,

I've been studying about semiconductor heterostructures and in particular quantum dots. I was wondering, why is there a need to have a "capping" layer above the layer where the quantum dots are formed within a sample?

Thanks in advance!

I've been studying about semiconductor heterostructures and in particular quantum dots. I was wondering, why is there a need to have a "capping" layer above the layer where the quantum dots are formed within a sample?

Thanks in advance!