Figure 7.

PL spectra of the prepared ZnO. (a) By various lignin amine amounts at 1:4 of Zn2+/OH- and (b) by various Zn2+/OH- ratios with 10 mL lignin amine.

Miao et al. Nanoscale Research Letters 2013 8:431   doi:10.1186/1556-276X-8-431
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