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Li B.-J.,Jiangsu University | Huang L.-J.,Jiangsu University | Ren N.-F.,Jiangsu University | Kong X.,Jiangsu Tailong Reduction Box Co. | And 2 more authors.
Applied Surface Science | Year: 2015

Nickel-coated fluorine-doped tin oxide (Ni/FTO) thin films were prepared by sputtering Ni layers on commercial FTO glass. The as-prepared Ni/FTO films underwent nanosecond pulsed laser annealing in an external magnetic field (0.4 T). The effects of the presence of magnetic field and laser fluence on surface morphology, crystal structure and photoelectric properties of the films were investigated. All the films displayed enhanced compactness after magnetic-field-assisted laser annealing. It was notable that both crystallinity and grain size of the films gradually increased with increasing laser fluence from 0.6 to 0.9 J/cm2, and then decreased slightly with an increase in laser fluence to 1.1 J/cm2. As a result, the film obtained by magnetic-field-assisted laser annealing using a fluence of 0.9 J/cm2 had the best overall photoelectric property with an average transmittance of 81.2%, a sheet resistance of 5.5 Ω/sq and a figure of merit of 2.27 × 10-2 Ω-1, outperforming that of the film obtained by pure laser annealing using the same fluence. © 2015 Elsevier B.V. Source


Li B.-J.,Jiangsu University | Huang L.-J.,Jiangsu University | Ren N.-F.,Jiangsu University | Kong X.,Jiangsu Tailong Reduction Box Co. | And 2 more authors.
Journal of Alloys and Compounds | Year: 2015

A two-step strategy, i.e. sputtering Ni layers on FTO glass combined with magnetic-field-assisted laser irradiation, was proposed to prepare laser-textured Ni/FTO bilayer composite films. By analyzing surface morphology, crystal structure and photoelectric properties of Ni/FTO films with different Ni layer thicknesses, the Ni/FTO film with a 10-nm-thick Ni layer (Ni10/FTO film), which had the best overall photoelectric property, was chosen to undergo magnetic-field-assisted laser irradiation with different laser fluences. Magnetic-field-free laser irradiation of the Ni10/FTO film was also carried out for comparison purpose. It was found that magnetic-field-assisted laser irradiation using a fluence of 1.0 J/cm2 was more effective for simultaneously achieving texturing and annealing, resulting in formation of ideal grating textures and significantly increased grain size. The corresponding film (MLI-NF1.0 film) showed the highest figure of merit of 22.8 × 10-3 Ω-1 compared to 13.1 × 10-3 Ω-1 of the FTO glass and 1.4 × 10-3 Ω-1 of the Ni10/FTO film, suggesting that the two-step strategy is excellent for preparing textured Ni/FTO films with high photoelectric properties. © 2015 Elsevier B.V. All rights reserved. Source


Li B.-J.,Jiangsu University | Huang L.-J.,Jiangsu University | Ren N.-F.,Jiangsu University | Kong X.,Jiangsu Tailong Reduction Box Co. | And 2 more authors.
Journal of Alloys and Compounds | Year: 2016

A ZnO nanorod-coated FTO film was prepared by sputtering an AZO layer on FTO glass, thermal annealing of the AZO/FTO film, and hydrothermal growth of ZnO nanorods at 70 °C on the annealed AZO/FTO film using zinc foils as zinc source. Two other ZnO nanorod-coated FTO films were also prepared by hydrothermal growths of ZnO nanorods on the FTO glass and the unannealed AZO/FTO film respectively for comparison purpose. The results were observed in detail using X-ray diffraction, scanning electron microscopy, water contact/sliding angle measurement, spectrophotometry and four-point probe measurement. The ZnO nanorods on the annealed AZO/FTO film were found to exhibit denser distribution and better orientation than those on the FTO glass and the unannealed AZO/FTO film. As a result, the ZnO nanorod-coated annealed AZO/FTO film demonstrated superhydrophobicity, high transparency and low reflectance in the visible range. Also this film had the lowest sheet resistance of 4.0 Ω/sq, implying its good electrical conductivity. This investigation provides a valuable reference for developing multifunctional transparent conductive films. © 2016 Elsevier B.V. All rights reserved. Source

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