Figure 4.

Room temperature UV and PL spectrum of the (a) leaf-like and (b) wire-like ZnO nanostructures. The red and black curves correspondingly indicate that the nanostructures are doped with and without indium, respectively.

Fang et al. Nanoscale Research Letters 2012 7:197   doi:10.1186/1556-276X-7-197
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