Synthesis and Characterization of Titanium (iv) Oxide Loaded with Silver Nano Particles Thin Films
American Journal of Nano Research and Applications
Volume 7, Issue 1, March 2019, Pages: 1-5
Received: Feb. 16, 2019; Accepted: Mar. 26, 2019; Published: Apr. 22, 2019
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Sunday Wilson Balogun, Department of Physics and Materials Science, Kwara State University Malete, Ilorin, Nigeria
Afolabi Bola Abdulhamid, Department of Physics, School of Science, Kwara State College of Education, Ilorin, Nigeria
Yekini Kolawole Sanusi, Department of Physics and Materials Science, Kwara State University Malete, Ilorin, Nigeria; Department of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
Adedokun Oluwaseun, Department of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
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This research investigates effect of annealing temperature on the optical properties of titanium dioxide loaded with silver nanoparticles (TiO2: AgNPs) thin films deposited on glass substrate by spin–coating technique. Silver nanoparticles was prepared using laguminosae-paplionodeae extracts as a reducing agent for silver nitrate and commercially available titanium (iv) oxide was used. Deposition of TiO2:AgNPs blend solution was done in different volume ratio. The blend solution volume ratio of (1:0.2) was deposited at 7 different thicknesses with different speed of revolution per minutes (rpm) for 30 seconds. Annealing of 16 samples deposited at 1000 rpm on the glass substrate was carried out at temperature range of 50°C to 425°C with 10°C interval in a tubular furnance. It is observed from the results that the peak absorption of photon energy occurred at 375°C in the visible range of the wavelength spectrum. Optimal thickness for peak absorbance of the TiO2:AgNPs blend layer occurred at 115 nm in the visible spectrum and at the corresponding spin speed of 1000  rpm. Optimized fabrication process with blend layer thickness of 115 nm yielded the best absorbance at annealed temperature of 375°C in the visible spectrum. The volume ratio of (1:0.2) gave the peak absorption at 0.75 a u. The band gap energy of the blend thin film is 3.58 eV at 375°C in the visible range of wavelength spectrum. It is revealed from the result that the light absorption, broadened absorption spectral range and thermal stability of titanium (iv) oxide film could be enhanced using silver nanoparticles. The results can be therefore used as a guideline for improving the design and fabrication of organic solar cells.
Organic Thin Film, Silver Nanoparticles, Titanium Dioxide, Annealing, Blend AgNPs:TiO2, Optical Properties
To cite this article
Sunday Wilson Balogun, Afolabi Bola Abdulhamid, Yekini Kolawole Sanusi, Adedokun Oluwaseun, Synthesis and Characterization of Titanium (iv) Oxide Loaded with Silver Nano Particles Thin Films, American Journal of Nano Research and Applications. Vol. 7, No. 1, 2019, pp. 1-5. doi: 10.11648/j.nano.20190701.11
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