Figure 3.

FESEM and cross-section images of ZnO quasi-NRs. Prepared in 10 mM of Zn(CH3COO)2 with different ammonia concentration, namely (A) 36 (standard reaction), (B) 180, (C) 288 and (D) 360 mM. Scale bar is 100 nm.

Ali Umar et al. Nanoscale Research Letters 2011 6:564   doi:10.1186/1556-276X-6-564
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