Journal ArticleDOI
Influence of Mg doping in magnetic properties of NiO nanoparticles and its electrical applications
Reads0
Chats0
TLDR
In this article, a thin film of pure and Mg doped NiO nanoparticles was used for the fabrication of low cost counter electrode for dye-sensitized solar cells (DSSCs).Abstract:
Mg doped NiO nanoparticles MgxNi1−xO (x = 0, 0.1, 0.2, 0.3, 0.4) have been synthesized using sol–gel method. Their structure and morphology of the sample were analyzed using X-ray diffractometer (XRD), transmission electron microscope (TEM) and scanning electron microscope (SEM) with energy dispersive X-ray spectrum (EDX). From the XRD analysis, it is observed that the sample can have FCC structure with a particle size of 22 nm. Functional group analysis was carried out using Fourier transform infrared spectroscopy (FTIR) and Ultraviolet visible spectrometer. The obtained band gap was 4.254 eV. Photoluminescence (PL) emission spectra showed blue emission with a strong band at 345 nm. SEM and TEM images confirmed the spherical morphology and high crystalline nature of the samples. EDX spectrum showed the purity of the samples. The magnetic properties of the samples were analyzed using the vibrating sample magnetometer (VSM). 0.3 %Mg doped samples showed room temperature ferromagnetism with higher saturation magnetization. The synthesized nanoparticles were used further for the fabrication of low cost counter electrode for dye-sensitized solar cells (DSSCs). A thin film of pure and Mg doped NiO nanoparticles deposited on Fluorine tin oxide (FTO) coated glass substrate serves as an efficient plate to increase the number of holes and induced the electrocatalytic activity and yield the efficiency of 2.4%.read more
Citations
More filters
Journal ArticleDOI
The influence of Zn and Mg doping on the structural and optical properties of NiO nano-structures for optoelectronic applications
TL;DR: In this paper, dual doped nickel oxide (NiO) nanostructures leading to significant enhancement of structural and optical properties of NiO were investigated using the X-ray diffraction (XRD) and UV-Visible spectrophotometer.
Journal ArticleDOI
Effect of Mg doping on the improvement of photoluminescence and magnetic properties of NiO nanoparticles
Journal ArticleDOI
Nickel Oxide Films Deposited by Sol-Gel Method: Effect of Annealing Temperature on Structural, Optical, and Electrical Properties
TL;DR: In this paper , the vibrational, optical, and electrical properties of NiO films were studied as a function of the annealing temperatures from 200 to 500 °C, and the optical transparency reached 90% in the visible range for 200 °C treated samples.
Journal ArticleDOI
Photocatalytic activities of Mg doped NiO NPs for degradation of Methylene blue dye for harmful contaminants: A kinetics, mechanism and recyclability
Kamlesh V. Chandekar,Baskaran Palanivel,Fatemah H. Alkallas,A. Ben Gouider Trabelsi,Aslam Khan,I.M. Ashraf,S. AlFaify,Mohd. Shkir +7 more
TL;DR: In this paper , pure Nickel oxide (NiO) nanoparticles (NPs) and Mg doped NiO (Mg:NiO), were prepared by one pot-auto combustion process in the presence of citric acid.
Journal ArticleDOI
Synthesis and characterization of manganese doping on NiO nanoparticles and its supercapacitor applications
Sri Sivakumar,Nazir Ahmad Mala +1 more
TL;DR: In this article, bare nickel oxide (NiO) and Mn2+ doped NiO nanoparticles (NPs) were prepared through the precipitation method and analyzed by XRD (X-ray diffraction), FT-IR (Fourier transform infrared spectra), SEM (scanning electron microscope), EDX (energy dispersive X-ray analysis), and CV (cyclic voltammetry) techniques.
References
More filters
Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
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
Review on dye-sensitized solar cells (DSSCs): Advanced techniques and research trends
TL;DR: In this paper, a review examines advanced techniques and research trends of dye-sensitized solar cells from the perspective of device modeling, state-of-the-art techniques, and novel device structures.
Journal ArticleDOI
NiO thin-film formaldehyde gas sensor
TL;DR: In this paper, the suitability of both pure and Li-doped NiO as a thin-film resistive gas sensor for formaldehyde has been investigated, and the detection limit for the latter was found to be ≈40ppm.
Journal ArticleDOI
Green synthesis of silver nanoparticles in aloe vera plant extract prepared by a hydrothermal method and their synergistic antibacterial activity
TL;DR: The results indicated that AgNPs@AV can be effectively utilized in pharmaceutical, biotechnological and biomedical applications and showed that the antibacterial effect of this hybrid nanomaterial was sufficient that it could be used to inhibit pathogenic bacteria.
Related Papers (5)
Investigations on structural, optical, morphological and electrical properties of nickel oxide nanoparticles
Suresh Sagadevan,Jiban Podder +1 more