Growth of zinc oxide nanoflowers by thermal evaporation method

• Published in: Physica. B, Condensed matter Vol. 405; no. 11; pp. 2570 - 2572
• Main Authors: ABDULGAFOUR, H. I, HASSAN, Z, AL-HARDAN, N, YAM, F. K
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier 01.06.2010
• Subjects: Condensed matter; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Evaporation; Exact sciences and technology; Materials science; Methods of deposition of films and coatings; film growth and epitaxy; Nanocomposites; Nanocrystals and nanoparticles; Nanomaterials; Nanoscale materials and structures: fabrication and characterization; Nanostructure; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; Physics; Scanning electron microscopy; Vapor phase epitaxy; growth from vapor phase; Zinc; Zinc oxide; Scanning electron microscopy; Raman spectra; Photoluminescence; Photoluminescence spectroscopy; X-ray diffraction; XRD; Nanostructures; Raman spectroscopy; Vapor deposition; Selective growth; Morphology; Zinc oxide; Vacuum evaporation; Nanostructured materials
• ISSN: 0921-4526; 1873-2135
• DOI: 10.1016/j.physb.2010.03.033

An alternative method for site-selective growth of ZnO nanostructures that does not use an Au catalyst or a ZnO thin-film seed layer is presented. Well-aligned ZnO nanoflower structure arrays were directly fabricated on silicon substrates through zinc powder evaporation, which uses a simple thermal evaporation method without a catalyst. The collected ZnO nanoflowers were then characterized through X-ray diffraction (XRD) and scanning electron microscopy (SEM). The optical properties of these nanostructured materials are also discussed.