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37 articles for “doping”
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Short Review on the Electronic Properties of High Electron Mobility Transistors for the Applications in Digital Communication
Abstract: In this review work, author has briefly reviewed on the relevant electronic properties to control the electrical properties of high electron mobility transistors (HEMTs). The electrical characteristics are reviewed corresponding to the microelectronic and Nanoelectronic HEMTs from the miniaturization point of view. Also, the effects of aluminium mole fraction, doping concentration and nano-layer thickness to control the drain current are reviewed. This work may be helpful to fabricate the electronic …
Published in International Journal of Digital Communication and Analog Signals · Vol. 4, Issue 2, 2018 · pp. 24–28 Read article
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A Survey on Hydrogen Storage System using Alloys
Abstract: The transition to a carbon-neutral energy landscape hinges on the ability to store hydrogen safely, densely, and reversibly. While high-pressure tanks and cryogenic vessels dominate today’s infrastructure, solid-state storage in metallic alloys offers a compelling alternative by marrying high gravimetric capacity with intrinsic safety. This work presents a systematic investigation of a family of reversible hydrogen-absorbing alloys—principally Mg-based intermetallics (Mg₂Ni, Mg-Fe-Mn) and Ti-V-based Laves phases (TiFe, Ti₁₋ₓMnₓV₂) – engineered through …
Published in International Journal of Energetic Materials · Vol. 12, Issue 1, 2026 · pp. 13–19 Read article
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Perovskite Oxides: A Multifunctional Material Class for Solar-to-Fuel Energy Conversion
Abstract: Harnessing concentrated solar energy for thermochemical water and carbon dioxide splitting presents a promising pathway to produce liquid hydrocarbon fuels as a sustainable alternative to fossil fuels. This process relies on advanced redox materials to facilitate efficient chemical reactions within thermochemical cycles. Traditionally, research has focused on binary oxides, particularly ceria, due to its redox capabilities. However, ceria’s high reduction temperature and limited tunability via extrinsic doping hinder its optimization …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 1, 2025 · pp. 36–45 Read article
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Garnet Intermetallic Compound to Memory Achievement
Abstract: This article subtended optimism to infer as of inter-bond speciation as from varying degrees of crystalarticulated formation to the horizon in the photonix arena. Colourless synthetic cubic crystal hasconfigurable mechanical, thermal and electro-optical properties. Gadolinium gallium garnet (GGG,Gd3Ga5O12) has crystal identity to allocate magnetic Gd ions on two interpenetrated corners of cubiccrystal analogy. Sublattice share of triangular geometry among Gd ions bear magnet isotropy tosubject sharp response devoid of dipole …
Published in International Journal of Analytical and Applied Chemistry · Vol. 7, Issue 1, 2021 · pp. 8–16 Read article
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Chemical Synthesis and Characterization of Polyaniline for Supercapacitors Application
Abstract: Various polyaniline (PANI) synthesis methods are reported in the literature, depending on the experimental parameters involved (T, t, doping, and mixing procedure). Herein, three chemical polymerization methods were used to synthesis PANI from aniline monomer: rapid oxidation (OR), controlled oxidation (CO), and interfacial oxidation (OI). The PANI was therefore deposited next by drop casting on a silicon (Si) substrate. X-ray diffraction, Raman spectroscopy, and scanning electron microscopy were used to …
Published in International Journal of Chemical Engineering and Processing · Vol. 8, Issue 2, 2022 · pp. 9–16 Read article
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Core/Shell structures embedded polyaniline nanocomposite for Solar cells
Abstract: The synthesis and characterization of the conducting polyaniline (Pani) films embedded with Co2+ doped, PVA capped PbS/ZnS core-shell particles as photoluminescent boosters is reported. The photoluminescence intensity of the core-shell particles –Pani film had increased significantly.Periodic arrangement of the nanoclusters of the core-shell particles in the continuous conductive polymer matrix and high carrier density promise this material for the photoelectrochemical applications. Solid -state photovoltaic cells have been fabricated with PbS:Co/ZnS-Pani …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 1, 2018 · pp. 8–18 Read article
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Preparation and Characterization of Ce-Si-SBA-15 Modified With Iron
Abstract: Recently environmental concerns have driven the development of specialized catalysts to prevent polluting substances from being released into the environment. New technologies have improvised our understanding of catalytic functions as well as selectivity in order to save the energy and chemicals. Today, catalysis is the workhorse in the chemical industry with approximately >90% of the products produced in catalytic processes. In addition, life cannot exist without catalysis, as virtually all …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 1, 2016 Read article
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Numerical Simulation of GaAs based MISFET Photo detector for Optical Communication
Abstract: This paper presents a 2D numerical simulation and analysis of GaAs based MISFET photo detector. Numerical simulation of the performance of the device in dark and illuminated condition has been performed. Drain current increases with wavelength of operation and attains maximum value at 0.65 micron and there is a sharp fall beyond 0.85 micron which is higher cut off wavelength for the proposed structure. The device exhibits very low dark …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 2, Issue 1, 2016 · pp. 17–30 Read article
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Electrical and Optical Study of MEH-PPV-Based OLED
Abstract: The electrical and optical characteristics of MEH-PPV (Poly [2-methoxy-5-(2’-ethyl-hexoxy)-1, 4 phenylenevinylene]) as active layer has been investigated in the organic light emitting diode (OLED).The proposed structure is a monolayer device; consisting MEH-PPV sandwiched between high work function anode (ITO) and a relatively low work function cathode (Ca).The proposed structure was simulated by device simulation software ATLAS from Silvaco Inc. Simulation includes various organic models like Poole-Frenkel mobility model and Langevin …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 2, 2017 · pp. 1–9 Read article
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Studies on the Electrical Characteristics of Single-Heterojunction GaN based HEMTs with AlGaN Nano-Layer of 21 nm
Abstract: In this work, we have studied the electrical characteristics of single-heterojunction AlGaN/GaN high electron mobility transistors (HEMTs). The effects of drain voltage and gate voltage on variations of drain current have studied on the basis of simulated HEMT structures. Also, we have studied the effects of aluminium mole fraction, gate length and doping concentration on variations of drain current based on the simulated HEMT structures. This present work will be …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 2, 2019 · pp. 26–38 Read article
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A Review on Modified TiO2 Nanostructured Materials in DSSC
Abstract: Dye sensitized solar cells DSSCs emerged as a new class of low cost energy conversion devices with simple manufacturing procedures and environmentally friendly character.TiO2 controls the light harvesting and confinement properties of the cell, in addition to preventing charge recombination and promoting charge transport toward the anode. These last two parameters are major factors in determining the charge collection efficiency. The particle size and shape, crystallinity, surface morphology and chemistry …
Published in International Journal of Energetic Materials · Vol. 1, Issue 1, 2015 · pp. 10–21 Read article
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Ferromagnetism in II-VI Diluted Magnetic Semiconductor, Zn0.96Mn0.04O Nanostructures by Green’s Theorem
Abstract: Ferromagnetism in II-VI diluted magnetic semiconductor, Zn0.96Mn0.04O is studied. Using the Heisenberg principle, the spin exchange between the neighboring spin is discussed. Heisenberg’s model describes the Hamiltonian of the system in terms of spin density and excitons. Mathematically, magnetic parameters such as magnetizations and magnetic susceptibility are determined by Green’s function. Ferromagnetism is expected from sp-d exchange interactions (RKKY), point defects such as oxygen vacancies, and Zn interstitial and quantum …
Published in International Journal of Metallurgy and Alloys · Vol. 8, Issue 2, 2022 · pp. 28–36 Read article
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Recent advances in utilization of wide band gap metal oxides for photocatalysis of organic waste
Abstract: Water cleaning has become a major challenge in the current scenario with huge amounts of industrial wastes being accumulated in the water bodies over the years. Traditional chemical, physical and biological processes for treating wastewater containing textile dye have disadvantages such as high cost, high energy requirement and generates secondary pollution during treatment process. The progressive oxidation processes technology has been appealing growing attention for the decomposition of organic dyes. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 3, Issue 2, 2017 · pp. 1–9 Read article
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Future prospects for DSSCs and its fabrication parameters with efficiency enhancement
Abstract: Dye-sensitized solar cells which combine the unique properties of both the organic compound and inorganic compound have attracted the attention of scientists. Thin film of TiO2 paste deposited on ITO (Indium doped Tin Oxide) acts as one electrode, Carbon electrode acts as counter electrode and ruthenium as the sensitizer. I-/I3- is used as the electrolyte. An increase of output potential when the cell was heated over a short period of …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 5, Issue 1, 2019 · pp. 18–30 Read article
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Magnetic Field Guided Diluted Magnetic Semiconductor, ZnxFe2-xO3 Nanoparticles for Biomedical and Biosensing Application
Abstract: The magnetic field guided nanoparticles are studied in the viewpoint of diluted magnetic semiconductor. Different structures and properties associated with Zn doped αFe2O3 nanostructures are presented in theoretical formulations. In addition, scientific methods of synthesizing particularly Solvothermal and biological methods of synthesizing Zn0.6Fe1.6O3 nanoparticles are discussed. More emphasis is given to the essence of nanotechnology from non-organic to organic matter namely nanoparticles of Zn0.6Fe1.6O3 to DNA. For in vivo or …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 8, Issue 1, 2022 · pp. 1–18 Read article
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Developments of Photonic Ferroelectric Ceramic Compose
Abstract: This article is a study of imposed interposed crystal allotropic modification underexposure of electricity. Ferroelectric photonic ceramic powder and films are usual studied in preparation from adoptive transduction in the same crystal based on electrical gradient. Ferroelectric ceramics and thin films used to be processed by the sol-gel method, where empirical variables of interest have been their chemical composition, constituent phases, and microstructure. Functional attributes made metal oxide compose like …
Published in International Journal of Composite Materials and Matrices · Vol. 7, Issue 1, 2021 · pp. 37–44 Read article
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Charge Infusion in Organic Device: With and Without SWCNTs
Abstract: In nanotechnology field, invention of single walled carbon nanotubes (SWCNTs) is a noteworthy development. It creates the door for advanced development in scientific field. Due to their appealing mechanical, electrical, and thermal properties, SWCNTs have multivarious usages. In this work, we have examined and predicted how SWCNT will affect the device performance in which Thionine dye is intercalated between Indium Tin Oxide (ITO) coated glass and aluminium (Al) to form …
Published in International Journal of Polymer Science and Engineering · Vol. 9, Issue 1, 2023 · pp. 26–31 Read article