Journal ArticleDOI
Optoelectronic and electrochemical properties of nickel oxide (NiO) films deposited by DC reactive magnetron sputtering
Balasubramanian Subramanian,Mostafa M. Ibrahim,V. Senthilkumar,K. R. Murali,V.S. Vidhya,C. Sanjeeviraja,M. Jayachandran +6 more
TLDR
The effect of annealing on the structural, microstructural, electrical and optical properties were studied by X-ray diffraction (XRD), atomic force microscope (AFM), four-probe resistivity measurement and UV-vis spectrophotometer as mentioned in this paper.Abstract:
Nickel oxide (NiO) thin films were deposited onto glass substrates by the DC reactive magnetron sputtering technique. The as-deposited films were post-annealed in air at 450–500 °C for 5 h. The effect of annealing on the structural, microstructural, electrical and optical properties were studied by X-ray diffraction (XRD), atomic force microscope (AFM), four-probe resistivity measurement and UV-vis spectrophotometer. XRD studies indicated cubic structure with a lattice parameter of 0.4193 nm. The band gap of the films was found to be 3.58 eV. Fourier transform infrared (FTIR) studies indicated a broad spectrum centered at 451.6 cm −1 . Photoluminescence studies exhibited room temperature emission at 440 nm. Cyclic voltammetry studies in 1 M KOH solution revealed the electrochromic nature of the NiO films prepared in the present study.read more
Citations
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Journal ArticleDOI
Electrospun Nanofibers of p-Type NiO/n-Type ZnO Heterojunctions with Enhanced Photocatalytic Activity
TL;DR: The results indicated that the p-n heterojunctions formed between the cubic structure NiO and hexangular structure ZnO in the NiO/ZnO nanofibers could be easily recycled without a decrease of the photocatalytic activity due to their one-dimensional nanostructural property.
Journal ArticleDOI
Redox and electrochemical water splitting catalytic properties of hydrated metal oxide modified electrodes
TL;DR: The redox and electrocatalytic properties of the resulting oxide layers are ascribed to the presence of extended networks of hydrated surface bound oxymetal complexes termed surfaquo groups, presenting a possible unifying concept in water oxidation catalysis.
Journal ArticleDOI
Review of nanostructured NiO thin film deposition using the spray pyrolysis technique
TL;DR: In this article, the Spray Pyrolysis Technique (SPT) has been used for spray deposition of NiO thin film and its characterization methods for various applications such as optoelectronic applications.
Journal ArticleDOI
Synthesis of wide band gap nanocrystalline NiO powder via a sonochemical method.
S. Mohseni Meybodi,S. A. Hosseini,M. Rezaee,Sayed Khatiboleslam Sadrnezhaad,Dariush Mohammadyani +4 more
TL;DR: A sonochemistry-based synthesis method was used to produce nanocrystalline nickel oxide powder with ≈ 20 nm average crystallite diameter from Ni(OH)(2) precursor with high purity well-crystallized structure, confirming production of a wide band-gap structure.
Journal ArticleDOI
Co-doped NiO nanoflake array films with enhanced electrochromic properties
TL;DR: In this article, a Co-doped NiO electrochromic nanoflake array with antireflection ability has been synthesized by low temperature chemical bath deposition and shown to have high transmittance at the bleached state in the region of visible light.
References
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Book
Handbook of inorganic electrochromic materials
TL;DR: In this paper, a case study on tungsten oxide is presented, where the authors discuss the preparation, structure, and composition of sputter-deposited tungstern oxide films.
Journal ArticleDOI
Transparent conducting p-type NiO thin films prepared by magnetron sputtering
TL;DR: In this article, a semitransparent thin film pin diode consisting of p-type nickel oxide (NiO) semiconductors was fabricated on a glass substrate and an average transmittance above 20% in the visible range was achieved.
Journal ArticleDOI
Preparation and characterization of spray pyrolyzed nickel oxide (NiO) thin films
Pramod S. Patil,L.D. Kadam +1 more
TL;DR: In this article, a spray pyrolysis technique was employed to deposit nickel oxide (NiO) thin films from hydrated nickel chloride salt solution on to glass substrates, and the effect of the volume of sprayed solution on structural, optical and electrical properties was studied using X-ray diffraction (XRD), infrared (IR), optical absorption, electrical resistivity and thermoelectric power (TEP) techniques.
Journal ArticleDOI
Characterization of sputtered NiO thin films
TL;DR: In this article, the structural, optical and electrical properties of NiO thin films were investigated using X-ray diffraction (XRD), visible spectrum and Hall effect measurements, and the dependences of film properties on substrate temperature, crystalline structure and natural aging effect were studied.
Journal ArticleDOI
Preparation of transparent and semiconducting NiO films
TL;DR: In this paper, the effect of annealing in the structure and morphology of vacuum deposited thin nickel films are reported, and the authors show that the phase transformation of Ni to NiO is controlled by the diffusion of Ni ions through the grain boundaries.
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Transparent conducting p-type NiO thin films prepared by magnetron sputtering
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Pramod S. Patil,L.D. Kadam +1 more