Figure 12.

SEM images of the ZnO/Al2O3 composite films with optimized ZnO/Al2O3 monocycle ratio of 1:1. Samples were annealed at 700°C (a), 800°C (b), 1,000°C (c), and 1,100°C (d), respectively.

Hou et al. Nanoscale Research Letters 2013 8:144   doi:10.1186/1556-276X-8-144
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