Preparation and characterization of nanostructured zinc oxide thin films

Abstract

Thin films of Zinc Oxide (ZnO) were deposited on slide glass substrates by the chemical bath deposition technique (CBD). The formation of nanostructured ZnO thin films have been confirmed through XRD, TEM, and SEM. The structure properties were investigated by XRD. The optical properties were measured by UV-VIS spectrophotometer. The absorption coefficient is calculated from recorded data and it is best fitted for direct band gap. The direct band gap was in range 3.8-4.0 eV.

Biosynthesis Zinc Oxide Nanoparticles Using Senna Occidentalis Leaf Extract and Evaluation of their Cytotoxic Effect on SW480 Colon Cancer Cell Line

“…This analysis, were 59% zinc and 40% oxides, which shows the elemental composition of zinc oxide NPs. Almost similar peaks were shows with Euphorbia prostrata fresh leaves extract in ZnO NPs synthesis (Elkader 2012;Chung et al 2015).…”

“…The color intensity is recorded in spectrophotometrically and it is proportional to the number of live cells. The colon cancer cells were plated with different concentrations of ZnO NPs (20,40,60, 80 and 100 μg/ml). Untreated cells and ZnO nanoparticles controls were involved in each assay to compare with the complete cell viability assessments.…”

Characterization and antibacterial capabilities of nanocrystalline CdS thin films prepared by chemical bath deposition

“…The substrates were cleaned with detergent solution followed by deionized water in an ultrasonic cleaner, and finally etched in a 10% HF solution [30]. The cleaned substrates were mounted vertically and immersed into a deposition bath containing an aqueous solution of constituents mixed in the following sequence: 25 ml of 2.4 Â 10 À 2 M NH 4 OH solution was poured into a 100 ml beaker containing 25 ml of 2.4 Â 10 À 3 M Cd(CH 3 CO 2 ) 2 solution until complete dissolution of the initially formed white precipitate, followed by 25 ml of 6 Â 10 À 3 M CS(NH 2 ) 2 ; finally, distilled water was added to dilute the solution to 100 ml.…”

Structural and Optical Properties of Nanoscale Galinobisuitite Thin Films

“…All these experiments were performed in closed, evacuated silica tubes in which a vapor phase was always present. Galinobisuitite (Bi 2 S 3 )(PbS) nanoparticle thin films were deposited on glass substrates (12 × 25 mm 2 ) cleaned with detergent, degreased with trichloroethylene, acetone, and ethanol, rinsed with deionized water in an ultrasonic cleaner, and finally etched in a 10% HF solution immediately before use for the depositions [6]. Galinobisuitite (Bi 2 S 3 )(PbS) nanoparticle thin films were deposited from a solution; the chemical deposition bath was prepared according to the following procedures 1 M solution in distilled water, of bismuth nitrate-lead nitrate solution was complexed by the addition of triethanolamine.…”