Enhanced green luminescence properties of cu doped ZnO nano-flowers and their improved antibacterial activities

The copper doped ZnO (CuxZn1-xO, where x = 0, 0.01, 0.02, 0.04, 0.05) nanoflowers were produced by using co-precipitation process. Hexagonal wurtzite nanocrystalline phase of both pure and Cu-doped samples was confirmed X-ray diffraction analysis. Field emission scanning electron microscopy results the emergence fully dispersed nanoflower like morphologies in uniform dispersion particles. Band gap energies prepared calculated Tauc?s plot. All generated samples? room temperature photoluminescent spectra show two peaks, one excitonic peak UV region another broad defect level visible area. yellow green luminescence characteristics analysed via PL light region, making them appropriate for optoelectronic applications. antibacterial potential nanostructures against bacterial strains Enterococcus Faecalis (gram positive) Pseudomonas Aeruginosa negative) assessed. When compared to nanostructures, exhibit enhanced activity. For with 5 at.%Cu, greatest zone inhibition noted be 25mm. at.% Cu, largest 21mm. findings indicate that obtained have higher gram negative than positive bacteria. therefore recommended as excellent nanophosphors production white LEDs effective nanoantibiotics gram-negative