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Showing 1 to 20 of 62 for “"SnO2"”.
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Untersuchung der gassensitiven Eigenschaften von SnO2/NASICON-Kompositen
… considerable structural alterations. Powders of SnO2 and NASICON (x = 0; 2.2; 3) were prepared separately by means of sol-gel routes and mixed in a volume ratio of 80/20. Pastes were prepared from these powders with different compositions and screen printed on alumina substrates with a fourfold …
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Micro/Nano-Scale Investigation on SN Alloys and SNO2 Nanowires
<p>Tin (Sn) and its alloys have been at people's service since 3000 BC when bronze (alloy of tin and copper) was produced in large scale. They have unique properties and find applications in various engineering fields. Correspondingly, there is abundant information waiting to be clarified …
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Defects and Interface Engineering of SnO2 Based Nanomaterials for High Performance Memory Applications
… In this thesis, a transparent metal oxide (SnO2) was selected for developing resistive switching-based RRAMs. Three strategies for improving the resistive switching behaviour were proposed and investigated, based on the solution-processed SnO2 thin films, which covered the following aspects: …
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Studies on structural, electronic and optical properties of SnO2 doped with nitrogen, chloeine, antimony and indium
SnO2 has recently attracted a great deal of interest due to its many technological applications, including in solar cells as it possesses advantageous optical and electrical characteristics, outstanding chemical stability, and thermal stability. However, the photocatalytic activity and charge …
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Quantitative Fracture Strength of Lithiated Tin Oxide Nanowires by In-Situ SEM Tensile Experiments
… strength of lithiated and pristine tin oxide (SnO2) nanowires was gathered from in situ scanning electron microscope (SEM) mechanical tests using a micro electromechanical system (MEMS) uniaxial tensile testing device. Stress values were calculated from load and displacement data from an inSEM …
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Obstacle avoidance robot applying fuzzy control system
… is achieved by applying a very thin tin oxide (SnO2) coating on one side of the glass. This coating can provide good thermal insulation to the buildings by blocking infrared rays while being transparent to visible part of the spectrum. Drawbacks of these energy saving windows is that it also …
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Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
… is achieved by applying a very thin tin oxide (SnO2) coating on one side of the glass. This coating can provide good thermal insulation to the buildings by blocking infrared rays while being transparent to visible part of the spectrum. Drawbacks of these energy saving windows is that it also …
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Fabrication of frequency selective structure and evaluation of microwave transmission on energy saving glass
… is achieved by applying a very thin tin oxide (SnO2) coating on one side of the glass. This coating can provide good thermal insulation to the buildings by blocking infrared rays while being transparent to visible part of the spectrum. Drawbacks of these energy saving windows is that it also …
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Growth of Semiconductor Thin Films by Pulsed Laser Deposition
… analyze the structures and properties of ZnO and SnO2 thin films. The critical temperature required to fabricate a crystalline ZnO thin film by pulsed laser deposition was found and has been confirmed. For the SnO2 thin film, the critical temperature required to generate a crystalline structure …
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Photoluminescence quenching of organic thin films by transparent conductive oxides
… in the range of 70--80 A. We also find that for SnO2 films deposited without oxygen in the sputtering ambient, resonant energy transfer from Alq3 to SnO2 is the dominant quenching mechanism. By varying the oxygen content in the Ar/C)2 sputtering gas mixture, we find that the energy transfer …
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Nonaqueous synthesis of metal oxide nanoparticles and their assembly into mesoporous materials
… indium oxide (ITO) nanoparticles are reported. SnO2 nanoparticles exhibit monodisperse particle size (3.5 nm in average), high crystallinity and particularly high dispersibility in THF, which enable them to become the ideal particulate precursor for the formation of mesoporous SnO2. ITO …
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Development of Tin Oxide As An Oxidation-Resistant Support For Pem Fuel Cells
… ratio.</p> <p>In this study, a novel mesoporous SnO2 support was successfully prepared to take the place of conventional carbon supports because of its high oxidation resistance under PEM fuel cell operation conditions. Platinum nanoparticles (~5 nm) were deposited on the SnO2 support via a …
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Laser processing of solution based antimony doped tin oxide thin films
Antimony doped Tin oxide (SnO2:Sb, or ATO) is of interest as an alternative to Indium Tin Oxide (ITO) for large area optoelectronic applications. There is a particular interest in the potential for solution based coatings based on nanoparticulate suspensions of SnO2:Sb. However, solution processed …
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Behaviour of Perovskite Solar Cells Under Reverse Bias and Interface Engineering for Efficient and Stable Solar Cells
… to migrate and accumulate at the tin dioxide (SnO2)/perovskite interface under reverse-biasing, which fill iodine vacancies at the interface and interact with SnO2. First-principles calculations suggest that the SnO2/perovskite interface with less iodine vacancies has a stronger interaction and …
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Behaviour of Perovskite Solar Cells Under Reverse Bias and Interface Engineering for Efficient and Stable Solar Cells
… to migrate and accumulate at the tin dioxide (SnO2)/perovskite interface under reverse-biasing, which fill iodine vacancies at the interface and interact with SnO2. First-principles calculations suggest that the SnO2/perovskite interface with less iodine vacancies has a stronger interaction and …
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Microstructural Evolution in Mocvd-Derived Tantalum-Doped Tin Dioxide Thin Films and Subsequent Property Changes
In this study, a series of Ta-doped SnO2 thin films was grown on glass and A12O3(0001) substrates utilizing the metal-organic chemical vapor deposition (MOCVD) technique. The main focus of this study was to understand the structure-property relationship in the Ta-Sn-O material system. …
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Oberflächenanalytische Untersuchungen von Segregationseffekten an dotierten oxidischen Feinstpulvern und Einkristallen
Reine und dotierte SnO2 Feinstpulver und Einkristalle wurden mit verschiedenen Methoden hergestellt. Die Abhängigkeit der Eigenschaften von der Dotierungsart und der Dotierungskonzentration wurde untersucht. Die Dotierung mit fünfwertigen Elementen (Sb, Nb) führt zur Erniedrigung des spezifischen …
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Magnetic and Transport Properties of Oxide Thin Films
… metal and rare earth doped oxides, particularly SnO2 and HfO2 thin films. Cr- and Fe-doped SnO2 films were deposited on Al2O3 substrates by pulsed-laser deposition. Xray- diffraction patterns (XRD) show that the films have rutile structure and grow epitaxially along the (101) plane. The …
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Organic Template-Assisted Synthesis & Characterization of Active Materials for Li-ion Batteries
… are being sought out. LiFePO4 (LFP) and SnO2 are both good alternatives for the cathode and anode materials in Li-ion batteries. But, to create high-performance batteries, nano-sized carbon-coated particles of LFP and SnO2 are required. The present work attempts to develop a new synthesis …
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Urea Pre-treatment of N2-annealed Transition Metal Oxides for Low Cost and Efficient Counter Electrodes in Dye-sensitized Solar Cell
… inactive commercial n-type WO3, SnO2, and ZnO into highly active WO3-x, SnO2-x and ZnO1-x as counter electrodes (CEs) for DSSCs. These new metal oxides replaced Pt by controlling the number of introduced oxygen vacancies. All the metal oxides including WO3, SnO2, and ZnO were …
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