Figure 6.

PL analysis on the Si/ZnO heterostructure NWs. PL spectra of (a) In/Si NWs and Si/ZnO core-shell NWs prepared at different ZnO growth times of (b) 0.5, (c) 1, (d) 1.5, and (e) 2 h.

Chong et al. Nanoscale Research Letters 2013 8:174   doi:10.1186/1556-276X-8-174
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