Ixora Coccinea Extract for Biosynthesis of Titanium Dioxide Nanoparticles: A Precursor for Organic ElectronicsPages 279-287
Sunday Balogun Abstract:
This study explores the synthesis, characterization, and evaluation of titanium dioxide nanoparticles (TiO2NPs) as a precursor for the electron transport layer in organic electronics. Traditional physical and chemical synthesis methods are not environmentally friendly or economical, due to the use of toxic chemicals and high energy. However, biosynthesis offers a low-cost, eco-friendly alternative. The synthesized NPs were characterized using various techniques, including X-ray diffraction technique, transmission electron microscopy, scanning electron microscopy, Fourier Transform Infra-red microscopy, electron dispersive X-ray, and UV-visible spectroscopy with a four-point probe equipped with Keithley2400 source meter. Results showed high crystallinity and a band gap energy of 4.02 eV. Electrical properties show sheet resistance, resistivity and conductivity as 67.22 x 106 Ω, 1.71 x 106 Ωm-1 and 0.585 x-6 Sm-1 respectively which were promising, with better photovoltaic characteristics than pure titanium dioxide. These properties suggest potential applications as an electron transport layer for solar cell technology. Keywords: Ixora coccinea flower, Extract, Titanium dioxide nanoparticles, Spectroscopic characterization, Energy band gap, Microscopic characterization
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