Type-I/type-II exciton in strained Si/SiGe multi-QWs

Using magneto-luminescence (ML) measurement, we have observed the formation of magneto-excitons with either type-I or type-II band alignment depending on the strain distribution in the Si/SiGe quantum well structures. This observation is consistent with the analysis of strain-induced band shifting a...

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Bibliographic Details
Main Authors: Wang, K, Huang, W, Lin, T, Lee, C, Sung, Y, Nicholas, R, Cheng, H
Format: Conference item
Published: 2008