Journal ArticleDOI
Fabrication of p-CuO/n-ZnO heterojunction diode via sol-gel spin coating technique
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TLDR
In this paper, a facile all-solution approach for the growth of nanostructured p-CuO and n-ZnO thin films was reported, which showed rectification behavior with a turn on voltage of 2.5 V and an ideality factor of 3.15.Abstract:
We report a facile all-solution approach for the growth of nanostructured p-CuO and n-ZnO thin films. The influence of annealing temperature on the physical properties of CuO and ZnO thin films was examined. XRD and Raman spectra depict the structural and phase purity of solution grown CuO and ZnO films. The electrical as well as the optical properties of thin films were also studied. The average optical transmission of CuO and ZnO thin films in the visible spectral region was found to be above 80 and 95% respectively. Band gap energy variations on annealing temperature were investigated for CuO as well as ZnO films. Surface morphology analyzed by FESEM shows that the films are very smooth. All solution grown p-n heterojunction using p-CuO and n-ZnO films was fabricated in the structure ITO/n-ZnO/p-CuO/Au which showed rectification behavior with a turn on voltage of 2.5 V and an ideality factor of 3.15.read more
Citations
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Journal ArticleDOI
Green Synthesis and Electrical Properties of p-CuO/n-ZnO Heterojunction Diodes
TL;DR: In this article, a green synthesized CuO and ZnO nanoparticles have shown the crystalline size of about 12.29 and 10.16 µm, respectively, using the extract of Eucalyptus globulus leaves.
Journal ArticleDOI
Solar light irradiated photocatalytic activity of ZnO–NiO/rGO nanocatalyst
Sheraz Yousaf,Sonia Zulfiqar,Muhammad Imran Din,Philips O. Agboola,Mohamed F. Aly Aboud,Muhammad Farooq Warsi,Imran Shakir +6 more
TL;DR: In this paper, the physicochemical properties of synthesized products were estimated by X-ray diffraction technique (XRD), Fourier transform infrared spectroscopy (FTIR), field emission-scanning electron microscopy (FESEM), and Ultraviolet-Visible spectroscopic analysis.
Journal ArticleDOI
Nano-sized CuO/ZnO hollow spheres: synthesis, characterization and photocatalytic performance
TL;DR: In this article, prepared CuO/ZnO nanocomposites are applied as a catalyst in photodegradation of rhodamine B (RB) and methylene blue (MB) pollutants.
Journal ArticleDOI
Fabrication of visible-light-active ZnO/ZnFe-LDH heterojunction on Ni foam for pollutants removal with enhanced photoelectrocatalytic performance
TL;DR: In this paper, a visible light-active Ni foam@ZnO/ZnFe-LDH composite photocatalyst was fabricated with well-defined porous 2D/2D interconnected nanosheets of ZnO and binary ZnFe layered double hydroxide growing vertically on the Ni foam substrate.
Journal ArticleDOI
Microwave-assisted hydrothermal synthesis of copper oxide-based gas-sensitive nanostructures
TL;DR: In this paper, the principle, mechanism and recent development of CuO nanostructures obtained by microwave-assisted hydrothermal synthesis (MWHS) process is briefly introduced and discussed the relation between endopathic factors of material and its gas-sensitive performance.
References
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Journal ArticleDOI
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells
TL;DR: In this article, an upper theoretical limit for the efficiency of p−n junction solar energy converters, called the detailed balance limit of efficiency, has been calculated for an ideal case in which the only recombination mechanism of holeelectron pairs is radiative as required by the principle of detailed balance.
Journal ArticleDOI
Raman Effect in Zinc Oxide
TL;DR: In this paper, the frequency and symmetry character of the fundamental modes of the Raman effect in zinc oxide has been determined using the continuous helium-neon and ionized argon lasers as sources.
Journal ArticleDOI
Temperature dependence of Raman scattering in ZnO
Ramón Cuscó,Esther Alarcon-Llado,Jordi Ibáñez,Luis Artús,Juan Jiménez,Buguo Wang,Michael J. Callahan +6 more
TL;DR: In this paper, a Raman scattering study of wurtzite was carried out over a temperature range from 80 to 750°C, where the second-order Raman features were interpreted in the light of recent ab initio phonon density of states calculations.
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