Special Effect of Urea as a Stabilizer in Thermal Immersion Method to Synthesis Porous Zinc Oxide Nanostructures

Table 1

Energy band gap ZnO nanostructures calculated based on photoluminescene (PL) spectra at UV emission.

(Zn(NO3)2·6H2O) : (CH4N2O)	Wavelength (nm)	Energy band gap (eV)
(a) 0.02 M : 0.01 M	387	3.21
(b) 0.01 M : 0.04 M	395	3.20
(c) 0.01 M : 0.06 M	399	3.11
(d) 0.01 M : 0.08 M	390	3.19