Figure 3.

Cross-sectional SEM analysis of MQW Si/Ge NWs. The images show NWs having lengths (a) 1.0, (b) 1.7, (c) 2.0, and (d) 2.7 μm.

Irrera et al. Nanoscale Research Letters 2014 9:74   doi:10.1186/1556-276X-9-74
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