Abstract
In the present paper, we have studied a new approach to the description of correlation between the optical and structural properties of ZnO thin films with doping levels of Al, Co, and In. The doped zinc oxide thin films were deposited using ultrasonic spray technique on a glass substrate at 350°C. The correlation between structural and optical properties with doping level suggests that the crystallite size of the films is predominantly estimated by the bandgap energy and the concentration of Al, Co, and In. Also, the gap energy of doped films was estimated by the crystallite size and doping level. The measurement in the crystallite size and optical gap energy of doped films with correlation is equal to the experimental data. The minimum error value was estimated in doped ZnO thin films with indium and cobalt. Thus, results indicate that such Co-doped ZnO thin films are chemically purer and have many fewer defects and less disorder, owing to an almost complete chemical decomposition.
Highlights
Nanotechnology is the synthesis of particles with at least one dimension in the range of 1–100 nm, resulting in high surface to volume ratios
The fresh extract of S. spinosa was yellow in color, but after addition of AgNO3 solution and stirring at room temperature, gradually the solution color changed into red (Fig. 1)
Various metabolites from plant extract introduced to solution make the plasmon band broad because they may be read in this spectrophotometric range, too
Summary
Nanotechnology is the synthesis of particles with at least one dimension in the range of 1–100 nm, resulting in high surface to volume ratios. Silver nanoparticles have attracted much attention due to their unique characteristics for utilizing in various applications including pharmaceutics, agriculture, water detoxification, air filtration, textile industries and as a catalyst in oxidization reactions [7,8,9]. Their predominant property is their high antibacterial activity against a broad range of bacteria without any toxicity to animal cells [10,11,12]. Scientists overcome this issue using biologically synthesized NPs coated with biomolecules that are more biocompatible [31, 32]
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