Thin films of nanostructured α-FeOwith thickness of 1 56,203 and 251 nm were deposited by successive ionic layer adsorption and reaction(SILAR) method onto glass substrates using FeCl-6HO and NaOH as cationic and ani...Thin films of nanostructured α-FeOwith thickness of 1 56,203 and 251 nm were deposited by successive ionic layer adsorption and reaction(SILAR) method onto glass substrates using FeCl-6HO and NaOH as cationic and anionic precursors.The X-ray diffraction studies revealed that,α-FeOthin films are nanocrystalline in nature with rhombohedral structure.The morphological properties were investigated by field emission scanning electron and atomic force microscopy.The optical studies showed that α-FeOexhibits direct as well as indirect optical band gap energy.The electrical resistivity of α-FeOat 305 K decreases from 11.76×102 to9.46 × 10~2 Ω cm as film thickness increases from 156 to 251 nm.The thermo-emf measurements confirmed that α-FeOexhibits n-type conductivity.The nanocrystalline α-FeOexhibits antibacterial character against Staphylococcus aureus and its efficiency increases from 37.50%to 87.50%depending on crystallite size.展开更多
基金University Grants Commission, New Delhi (India), for financial support under the project
文摘Thin films of nanostructured α-FeOwith thickness of 1 56,203 and 251 nm were deposited by successive ionic layer adsorption and reaction(SILAR) method onto glass substrates using FeCl-6HO and NaOH as cationic and anionic precursors.The X-ray diffraction studies revealed that,α-FeOthin films are nanocrystalline in nature with rhombohedral structure.The morphological properties were investigated by field emission scanning electron and atomic force microscopy.The optical studies showed that α-FeOexhibits direct as well as indirect optical band gap energy.The electrical resistivity of α-FeOat 305 K decreases from 11.76×102 to9.46 × 10~2 Ω cm as film thickness increases from 156 to 251 nm.The thermo-emf measurements confirmed that α-FeOexhibits n-type conductivity.The nanocrystalline α-FeOexhibits antibacterial character against Staphylococcus aureus and its efficiency increases from 37.50%to 87.50%depending on crystallite size.
