Enhanced visible photoluminescent and structural properties of ZnO/KIT-6 nanoporous materials for white light emitting diode (w-LED) application

• Published in: Journal of alloys and compounds 2015-12, Vol.651, p.479-482
• Main Authors: Sathyaseelan, B., Manikandan, E., Sivakumar, K., Kennedy, J., Maaza, M.
• Format: Article
• Language: English
• Subjects: Diodes; Electron microscopes; Emittance; Metal oxides; Nanocrystalline materials; Nanostructure; Optical materials and properties; Photoluminescence; Silicon dioxide; White light; X-ray; Zinc oxide; ZnO
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2015.08.094

Mesoporous metal oxides ZnO are prepared by wet impregnation via hard templating synthesis method using KIT-6 mesoporous silica. The pore size of mesoporous silica with the symmetry of bicontinuous cubic Ia3d have been controlled in the range of 3.4–4.9 nm, indicating the existence of ordered within the silica walls respectively, by choosing surfactants and adjusting the temperature. The pore size of the silica template has been considered to be an important factor that determines the mesostructure of the resulting metal oxides. The prepared ZnO/KIT-6 samples have been studied by XRD, transmission electron microscope (TEM), BET surface area, and photoluminescence (PL) spectroscopy. The ZnO/KIT-6 nanocomposite has the ordered mesostructure of KIT-6 can be used as a white light emitting diode (w-LED) and ultraviolet nanolasers. [Display omitted] •ZnO nanoporous materials synthesized by wet impregnation via hard templating KIT-6 silica.•The pore-size of mesoporous silica with symmetry of bicontinuous in the range of 3–5 nm.•The pore-size of silica template has been considered important factor of metal oxides.•Synthesized revealed by XRD, Electron microscopes, BET, photoluminescence spectroscopy.•Nanocomposite of KIT-6 can be used as white LED and UV nanolaser diodes.