Synthesis, characterization, and green luminescence in ZnO nanocages.
In this paper, we report the synthesis, characterization and observation of green luminescence in ZnO nanocages. A novel low temperature solution-based technique has been developed for growing highly porous ZnO nano-cages from coarse ZnO precursor powders. Various samples, prepared in this study, were characterized using several different characterization tools such as X-ray diffraction, Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy, Raman, Photoluminescence and Optical Transmission Spectroscopy. It has been shown that ZnO nanocages exhibit green luminescence, with PL data showing a broad green peak at 510 nm. The shift and broadening in the luminescence peaks are understood to arise because of the onset of deep level defects in the system.
Snure
Michael
M
Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT-84112, USA.
Tiwari
Ashutosh
A
D004577:Electron Probe Microanalysis; D005782:Gels; D008027:Light; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D044367:Phase Transition; D010777:Photochemistry / Q000379:methods*; D013059:Spectrum Analysis, Raman; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000737:chemistry*
D005782:Gels; D015034:Zinc Oxide