Retraction Note: Nanoscale Res Lett (2017) 12:66 https://doi.org/10.1186/s11671-017-1826-1
The authors have retracted this article. After publication, it was noted that Figures 6 and 7 used incorrect data from a different study. This has led to the authors having a loss of confidence in the results of their article.
All authors agree to this retraction.
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