Table 1.

Size and polydispersity for Zn:NaOH:PVP 10 1:1:0.05 wt % (reprinted with permission of Elsevier [64], 2014).

	25 °C Grooved Disk		80 °C Grooved Disk		25 °C Smooth Disk
Speed (rpm)	Band Gap (eV)	Particle Size (nm)	Band Gap (eV)	Particle Size (nm)	Band Gap (eV)	Particle Size (nm)
500	3.90	2.1 ± 16.2%	3.77	2.5 ± 19.6%	3.95	2 ± 16.9%
1000	4.09	1.75 ± 13.8%	4.00	1.9 ± 18.2%	4.20	1.6 ± 13%
2000	4.20	1.6 ± 13.8%	4.00	1.9 ± 13.5%	4.34	1.45 ± 10.9%
3000	4.29	1.5 ± 11%	4.00	1.9 ± 12.6%	4.49	1.3 ± 10%