Figure 2.

Surface FE-EM images of L-NiO films with different Li concentrations. (a) 2, (b) 4 (c) 6 (d) 8, and (e) 10 at %.

Chia-Ching and Cheng-Fu Nanoscale Research Letters 2013 8:33   doi:10.1186/1556-276X-8-33
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