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Fabrication and Performance Study of a New Design of Passive Thermosyphon Type Solar Water Heater
The work presents an example of a passive solar heating system, which utilizes direct solar energy to heat the water for domestic use. A passive thermosyphon heating system was designed, fabricated, and tested...
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Article
Impedance spectroscopy and transport mechanism of molybdenum oxide thin films for silicon heterojunction solar cell application
A comprehensive study is reported for temperature-dependent current–voltage (I–V–T), capacitance–voltage (C–V–T), and impedance spectroscopy measurements carried out in the temperature range of 289–413 K for A...
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Article
Thermal annealing impact on structural, optical and dispersion parameters of zinc tetrapyridylporphyrin as a potential absorber thin film for energy conversion and storage devices
Thermally evaporated of zinc 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphine (ZnTPyP) organic thin films have been successfully prepared and investigated. X-ray diffraction patterns of fresh grown and annealed Zn...
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Article
Blueshifted dielectric properties and optical conductivity of new nanoscale nickel-(II)-tetraphenyl-21H,23H-porphyrin films as a function of UV illumination for energy storage applications
Pristine thermally evaporated nickel-(II)-tetraphenyl-21H,23H-porphyrin (NiTPP) thin films are amorphous, but after 4 and 8 h of UV illumination, the films become crystalline with preferred orientations of (11...
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Article
Optical solitons to birefringent fibers for coupled Radhakrishnan–Kundu–Lakshmanan model without four-wave mixing
The article investigates optical soliton to Radhakrishnan–Kundu–Lakshmanan (RKL) equation in birefringent fibers which involving two component form for vector solitons in telecommunication system. The optical ...
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Article
Raman spectroscopy and optical constants of nanostructured oxovanadium(IV) tetraphenylporphyrin thin films
Oxovanadium(IV) tetraphenylporphyrin (VOTP) thin films were prepared by thermal evaporation technique. The structural investigation and surface morphology of the VOTPP films were characterized by X-ray diffrac...
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Article
Conservation laws, optical molecules, modulation instability and Painlevé analysis for the Chen–Lee–Liu model
In this paper, we will compute the conservation laws (CLs) of Chen–Lee–Liu equation (CLLE) with the help of scaling invariance technique. We will use Euler and Homotopy operators for the evaluation of conserve...
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Article
Dependence of new environmental nano organic semiconductor nickel-(II)-tetraphenyl-21H,23H-porphyrin films on substrate type for energy storage applications
Characterization of organic nickel-(II)-tetraphenyl-21H,23H-porphyrin films as a function of substrate type was performed for energy storage applications and consequently environmental enhancement. Nickel-(II)...
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Article
Exploring illumination effect on the impedance spectroscopy and dielectric dispersion of 5, 10, 15, 20-tetrakis(4-methoxyphenyl)-21H, 23H-porphine cobalt(II)/silicon heterojunction photovoltaic
The dynamic properties of a hybrid heterojunction based on a small molecule of 5, 10, 15, 20-tetrakis (4-methoxyphenyl)-21H, 23H-porphine cobalt(II), CoTMPP, grown onto p-Si wafer have been studied using impedanc...
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Article
Electrical and Photovoltaic Responses of an Au/Coumarin 337/n-Si/Sb-Au Hybrid Organic–Inorganic Solar Cell
Thin films of coumarin 337 (C-337) dye were fabricated on n-type silicon (111) wafer using a high-vacuum thermal evaporation technique. Investigation of their structure using x-ray diffraction analysis and scanni...
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Article
Facile synthesis, characterizations, and impedance spectroscopic features of Zn(II)-bis Schiff base complex films towards photoelectronic applications
Complexation of Zn2+ with pyridyl Schiff base (ZnL2) was synthesized. The ZnL2 was examined and characterized using the elemental analysis, NMR, IR, UV-Vis, and mass spectra. ZnL2 was formed within 1:2 molar rati...
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Article
Erratum to: The effect of long term aging on the structural and optical properties of nano metallo-tetraphenylporphine films
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Article
The effect of long term aging on the structural and optical properties of nano metallo-tetraphenylporphine films
Thickness of 200 nm of NiTPP film is prepared by thermal evaporation technique under vacuum 10−6 torr as a candidate of nano metallo-tetraphenylporphine to study long aging. The prepared films are amorphous in na...
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Article
Electrical conduction mechanisms and dielectric constants of nanostructured methyl violet 2B thin films
The uniform thin films of methyl violet 2B, MV2B, with thicknesses ranged from 96 to 300 nm, have been successfully prepared by spin coating technique. X-ray diffraction showed that the powder and pristine thi...
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Article
Aluminum nanocomposites for elevated temperature applications
Aluminum casting alloys conventionally used in the automotive and aerospace industries (i.e., Al-Zn-Mg, and Al-Cu-Mg systems) are able to achieve excellent tensile strength at room temperature. At high tempera...
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Article
Development of a novel hypereutectic aluminum-siliconmagnesium alloy for die casting
A novel hypereutectic die casting Al-Si-Mg alloy with relatively high Mg content was developed. The optimized microstructure of the alloy is characterized by a fine dispersion of eutectic Si and Mg2Si particles i...
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Authors’ reply to reply of discussion on “nucleation mechanism of eutectic phases in aluminum-silicon hypoeutectic alloys”
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Authors’ reply
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Article
Focused ion beam milling: A practical method for preparing cast Al-Si alloy samples for transmission electron microscopy
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Article
Grain growth at the free surface of WC-Co materials
The grain growth rate at the free surface of a WC-Co material was measured at different high temperatures and the microstructure and elemental composition of the material were characterized at various stages o...