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64 articles for “nanocrystals”
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Solution Combustion Synthesis of Nanocrystalline and High-K Dielectric Lanthanum Oxide
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 The present paper describes a simple and eco-friendly chemical method of lanthanum oxide or lanthania (La2O3) nanoparticles by the solution combustion synthesis based on urea. The fuel urea is varied for different fuel to oxidizer ratios (F/O) or Ψ = 0.5 to 1.5 in the steps of 0.25. The average crystallite size of La2O3 nanoparticles was estimated from the full width …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 1, Issue 3, 2011 · pp. 1–7 Read article
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Tuning the physical properties of spray pyrolysed nanocrystalline CdO thin films by varying the substrate temperature
Abstract: Spray pyrolysis technique has been employed to deposit cadmium oxide (CdO) thin films on glass substrates preheated to different temperatures (250, 350, 400 and 500°C). Structural, morphological, optical and electrical characterization studies were performed on the films to study the behavior of the films. The thicknesses of the films prepared at different substrate temperatures vary from 497 to 465 nm. X-ray diffraction analysis reveals that the films are polycrystalline exhibiting …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 1, 2020 · pp. 31–41 Read article
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Role of Hot-Injection Technique for the Synthesis of Phase-Pure Kesterite CZTS Nanocrystals for Biosensing Applications
Abstract: Main Focus in this present work, is biosensing application of CZTS nanoparticle instead of established and mainstream photovoltaics application. Here, biocompatible CZTS have been synthesized using butylamine. The capping effect has been explored in two ways first, post synthesis ligand exchange from TOPO-capped CZTS (Ex-situ) and during synthesis (In-situ). The sample obtained after ex-situ ligand exchange was analysed for its stability using x-ray diffraction method (XRD), transmission electron microscopy (TEM) …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 20, Issue 3, 2018 · pp. 6–12 Read article
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Pharmaceutical Activity of Mirabilis Jalapa and its Biogenesis of Nanocrystals
Abstract: Bio friendly green modest synthesis of nanoparticles are the present research in nanotechnology. This study has been undertaken to explore the determinants of copper nanoparticles from 1 mM CuSO4 solution through profuse concentration of aqueous flower extract of Mirabilis jalapa reducing besides immobilizing agent. The attribute of copper nanoparticles was studied by using UV-VIS spectroscopy SEM and XRD. The XRD spectrum of the copper nanoparticles established the presence of elemental …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 3, 2025 · pp. 56–65 Read article
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Synthesis and Photoluminescence Dynamics of Europium (III) and Terbium (III) Co-doped of GdSrAl3O7 Color-Tunable Nanophosphors
Abstract: A series of Europium (III) and Terbium (III) co-doped GdSrAl3O7 color-tunable nanophosphors were synthesized by a simplistic, streamlined and self-propagating, urea-assisted solution combustion synthesis process. The structural and luminescence characteristics of synthesized Eu3+/Tb3+ co-doped Gadolinium Strontium Aluminate nanocrystalline phosphors were validated using powder X- ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X- ray analysis (EDAX), and photoluminescence spectra studies. The morphological studies revealed that …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 1069–1082 Read article
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Bismuth-Doped CuGaS₂ Thin Films for Enhanced Photovoltaic and Electrocatalytic Performance
Abstract: This study presents the development and application of bismuth (Bi)-doped CuGaS₂ thin films for enhanced performance in photovoltaic and electrocatalytic systems. Using a cost-effective all-solution processing method, Bi-doped CuGaS₂ chalcopyrite nanocrystals were synthesized and spray-deposited onto molybdenum substrates. The resulting films, with a thickness of approximately 730 nm and grain sizes larger than 400 nm, exhibited superior optical properties and a lower band gap compared to undoped films, making them …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 11, Issue 3, 2024 · pp. 01–07 Read article
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Semiconducting Materials for Emerging Electronics and Technological Applications
Abstract: Semiconducting materials are important for emerging electronic and photovoltaic technologies because their structural, optical and electrical properties can be tailored for specific device applications. In this study, a TiO₂-based composite photoanode is considered as a polymer-assisted semiconducting thin-film system in which inorganic TiO₂ nanoparticles are processed with organic film-forming components to produce a porous layer for dye-sensitised solar cell application. Nanocrystalline TiO₂ nanoparticles were synthesised from titanium isopropoxide using a …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 36–50 Read article
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Development of chemical photo-electronics
Abstract: This article has described to access changed perform of zinc sulphide (ZnS) after doping manganese. ZnS has been typified II-VI compound devised for optoelectronic semiconductor material. Mn-doped ZnS semiconductor nanocrystal has been explored in 1994. Scope has been synergistic to usual doped semiconductor nanoparticle, given by, CdS: Mn; CdS: Eu; ZnO: Co, Ni; ZnSe: Mn; ZnS: Cu; ZnS: Pb, Cu; henceforth, scope adjunct has been in lane pursue of ZnS: …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 3, 2021 · pp. 16–22 Read article
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Analytical Study on Humidity Sensing of Nanostructured Tin Oxide
Abstract: Nanocrystalline tin oxide powder was prepared by a mechanochemical method. The synthesised powder was characterised using X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD shows the crystalline nature of the synthesised material. The crystallite size was estimated using Debye–Scherrer equation and its minimum value was 9 nm. Surface morphologies of the sensing pellets were investigated using SEM. Pellets as well as thick films were used as sensing elements for …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 3, 2020 · pp. 1–7 Read article
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My Scientific Journey in Nanotechnology
Abstract: This article is a historical review of my encounter with Nanotechnology in DAVIET, Jalandhar. The methodology used for fabrication of nanowires and nanoflowers is briefly discussed. A passing reference is made to the contribution of my collaborators. The article is illustrated with images of nanoflowers and copper nanocrystals obtained as a by product of nanowires. The list of our publications in the area of nanotechnology is given at the end.
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 20, Issue 2, 2018 · pp. 48–54 Read article
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Uses of Nanotechnology in Medical Diagnostic Applications
Abstract: Nanoparticle and nanodevice is a boon for mankind to treat and deal with disease and medical diagnosis respectively. Nanotechnology is formed by the unity of chemistry, engineering, biology and medicine restricted to the nanoscale (about 1–100 nanometer (nm)). For example, early detection of malignant tumors and cancer biomarkers, which is impossible using conventional technologies. In here we will discuss nanosized sensors to identify different pathological parameters, foreign antigen and toxic …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 11, Issue 4, 2022 · pp. 25–29 Read article
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Bimetallic Catalysis in Renewable Energy Applications: A Review
Abstract: The transition to renewable energy sources necessitates innovative catalytic solutions to improve efficiency and sustainability. Bimetallic catalysis, leveraging the synergistic effects of two distinct metals, has emerged as a promising strategy in various renewable energy applications. This review explores the unique properties and mechanisms of bimetallic catalysts, highlighting their roles in biomass conversion, hydrogen production, and CO2 reduction. We delve into the interplay of electronic and geometric effects in these …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 2, 2024 · pp. 25–29 Read article
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Emanation of Bioplastics-Every Now and Then–A Review
Abstract: With the increasing population the usage of Fossil derived plastics has increased rapidly in daily lifedue to its low cost and good moulding properties. These conventional plastics are non-biodegradableand creates pollution in land, water and air ecosystem at the end of their life cycle. More than 90% ofplastics have been acquired from “fossil feedstocks”, and globally it reports around 4–8% of oilconsumption and was estimated to be attain around 20% …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 3, 2021 · pp. 38–42 Read article
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Sugarcane Bagasse: A Promising Source for the Production of Nanocellulose
Abstract: AbstractThis paper reviews the recent studies of extraction of nanocellulose (cellulose nanofibers, nanocrystals, nanowhiskers, nanocrystalline cellulose, etc.) from sugarcane bagasse as agro-waste by different extraction methods such as acid-hydrolysis, alkaline-hydrolysis, enzymatic-hydrolysis, sonication, high-pressure homogenization, and shear ultrafine friction grinding, disk-grinder, including potential applications. Keywords: Sugarcane bagasse, nanocellulose, nanofibres, nanocrystals, acid-hydrolysis
Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 23–27 Read article
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Surface Analysis of Tungsten Doped TiO2 Films and Its Effect on Photocatalytic Degradation of Environmental Pollutants
Abstract: Normal 0 false false false Nanocrystalline TiO2 films, undoped and doped W6+ ions have been prepared on cleaned glass substrate by sol-gel route. Formation of anatase TiO2 phase has been confirmed by XRD analysis of the samples annealed at 550oC for 5 hours. Size of nanocrystals calculated by Debye-Scherrer’s formula and measured by TEM was found to decrease with increase in doping level. Average nanocrystal diameter in undoped sample is …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 1, Issue 1, 2011 · pp. 26–41 Read article
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Crystallization Kinetics and Morphological Shifts in Polylactic Acid/Nanocellulose Blends Under Isothermal Melt Conditions
Abstract: The great potential of polylactic acid as a sustainable biopolymer for packaging, biomedical materials, and additive manufacturing, polylactic acid's slow crystallization kinetics during melt processing causes it to be poorly crystallized, thermally weak, and mechanically underperforming. Crystallization models of PLA/nanocellulose blends have been limited to isothermal melt crystallization kinetics and the resulting morphological changes. The phenomena discussed in this work are systematically explored by melt compounding of polylactic acid with …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Sonochemical Synthesis and Photo-Catalytic Study of Cd Doped Znse Nanoparticles
Abstract: Cd doped ZnSe nanoparticles have been successfully synthesized with sonochemical process by reacting high purity acetates and sodium selenosulphate at 343 K. The size of nanoparticles was calculated by using powder XRD. It shows the crystalline size ranging between 35.3 nm to 45.44 nm. XRD further shows that ZnSe nanocrystallites are polycrystalline in nature and belong to the hexagonal phase. SEM shows that the particles are spherical in shape. Effect …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 17, Issue 1, 2015 · pp. 32–41 Read article
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Developing Molybdenum Doped Zinc Oxide Nanoparticles’ Sensors for Quality Assessment of Black Tea
Abstract: Zinc oxide is a well-established sensor material for detection of various organic molecules. In a quest of developing a sensor array for quality assessment of black tea, developing pure and molybdenum doped nanocrystalline ZnO-based sensors. The effect of changing the sintering duration and time has been studied. FESEM, EDS and XRD characterisations confirmed the formation of wurzite nanocrystals of approximately 20 nm. The 2% molybdenum doped ZnO (calcined at 500 …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 3, 2014 · pp. 32–38 Read article
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Investigations into the Mechanical and Thermal Properties of Fe3C Compound: A Comprehensive Analysis
Abstract: Exploration of mechanical properties of Fe3C powder using Williamson-Hall analysis by using Mechanical alloying technique. The primary objective of this study is to investigate the lattice strain (LS) and nanocrystalline size (CS) in an Fe3C produced from powder using the Mechanical Alloying Method (MAM). By the repeated mechanical crushing, the LS created by MAM is expected to decrease while the CS is anticipated to reduce the particle size. To accomplish …
Published in Journal of Polymer & Composites · Vol. 11, Issue 12, 2023 · pp. 225–234 Read article
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Influence of Gd Doping in Structural, Morphological and Optical Properties of Zno Nanostructures Synthesised Via Sol-Gel Processes
Abstract: In this study, nanocrystalline Zn1-xGdx (x=0.0 and 0.03) samples were synthesised via the Sol-gel combustion process. An array of analytical techniques was employed to examine the prepared samples to determine their different physical features. For both pristine and Gd-doped samples, the crystal symmetry is hexagonal with the P63mc space group which is verified via the Rietveld refinement analysis of X-ray diffraction (XRD) data. The atoms' bond length Zn-O and bond …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 219–225 Read article