Studies of surface morphology and optical properties of ZnO nanostructures grown on different molarities of TiO{sub 2} seed layer

Journal Article · Wed Jul 06 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4948871· OSTI ID:22608604

Asib, N. A. M.,; Afaah, A. N.; Aadila, A.; Rusop, M. ^[1]

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1. NANO-SciTech Centre, Institute of Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor (Malaysia)

Titanium dioxide (TiO{sub 2}) seed layer was prepared by using sol-gel spin-coating technique, followed by growth of 0.01 M of Zinc oxide (ZnO) nanostructures by solution-immersion. The molarities of TiO{sub 2} seed layer were varied from 1.1 M to 0.100 M on glass substrates. The nanostructures thin films were characterized by Field Emission Scanning Electrons Microscope (FESEM), Photoluminescence (PL) spectroscopy and Ultraviolet-Visible (UV-Vis) spectroscopy. FESEM images demonstrate that needle-like ZnO nanostructures are formed on all TiO{sub 2} seed layer. The smallest diameter of needle-like ZnO nanostructures (90.3 nm) were deposited on TiO{sub 2} seed layer of 0.100 M. PL spectra of the TiO{sub 2}: ZnO nanostructures thin films show the blue shifted emissions in the UV regions compared to the ZnO thin film. Meanwhile, UV-vis spectra of films display high absorption in the UV region and high trasparency in the visible region. The highest absorbance at UV region was recorded for sample which has 0.100 M of TiO{sub 2} seed layer.

• OSTI ID: 22608604
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1733; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
FIELD EMISSION
GLASS
LAYERS
NANOSTRUCTURES
OPTICAL PROPERTIES
PHOTOLUMINESCENCE
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SPECTROSCOPY
SPIN-ON COATING
SUBSTRATES
SURFACES
THIN FILMS
TITANIUM
TITANIUM OXIDES
ULTRAVIOLET RADIATION
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA
ZINC OXIDES