Figure 2.

Raman and PL characterizations of the GaAs-on-Si substrate. (a) Raman spectrum of the substrate with and without strain, (b) Raman shift of GaAs under different strains, (c) the PL spectrum of the substrate with and without strain, and (d) the PL shift of GaAs under different strains.

Li et al. Nanoscale Research Letters 2013 8:218   doi:10.1186/1556-276X-8-218
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