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Performance Review of Static Memory Cells Based on CMOS, FinFET, CNTFET and GNRFET Design
Published in Balwinder Raj, Ashish Raman, Nanoscale Semiconductors, 2023
Nanowires are nanostructures having a diameter of less than one nanometer (109 meters). It may alternatively be described as a length-to-width ratio that is larger than 1000. Nanowires can also be described as structures with a thickness or width of tens of nanometers or less, as well as an unrestricted length.
Methane Conversions
Published in Saeed Sahebdelfar, Maryam Takht Ravanchi, Ashok Kumar Nadda, 1 Chemistry, 2022
Saeed Sahebdelfar, Maryam Takht Ravanchi, Ashok Kumar Nadda
Recently, Siluria Technologies discovered bio-based nanowires that can present ethylene yield of 90% at temperature lower than 600°C. The critical point is developing a catalyst that inhibits complete hydrocarbon oxidation and improves catalyst lifetime. Different methods are reported for the synthesis of nanowires such as template-free methods, vapor-phase growth and template-assisted synthesis.
Survey of Low-Dimensional Nanomaterials
Published in Klaus D. Sattler, st Century Nanoscience – A Handbook, 2020
Inorganic nanowires can also act as active components in devices as revealed by recent investigations. In the last 3–4 years, a variety of inorganic material nanowires have been synthesized and characterized. Thus, nanowires of elements, oxides, nitrides, carbides, and chalcogenides have been generated by employing various strategies. One of the crucial factors in the synthesis of nanowires is the control of composition, size, and crystallinity. Among the methods employed, some are based on vapor-phase techniques, while others are solution techniques. Compared to physical methods such as nanolithography and other patterning techniques, chemical methods have been more versatile and effective in the synthesis of these nanowires.
Corrosion monitoring at the interface using sensors and advanced sensing materials: methods, challenges and opportunities
Published in Corrosion Engineering, Science and Technology, 2023
Vinooth Rajendran, Anil Prathuru, Carlos Fernandez, Nadimul Haque Faisal
Nanowire is typically a cylindrical nanostructure with diameter about less than a nanometre [195]. Nanowire is highly versatile and has excellent electron-transport properties along with good biosensing properties and the charge carrier motions can be enhanced by nanowires compared to their bulk counterpart, which is used for electrical, ultrasensitive sensors and find a failure/susceptibility area in the chemical and biological field. Based on the studies, nanowire-based sensors show improved performance [196,197]. Nanowires can be fabricated in two ways, namely bottom-up fabrication such as vapour liquid–solid (VLS), metal–organic decomposition, molecular beam epitaxy or top-down fabrication such as electron beam lithography, ion beam etching, thermal evaporation oxide-assisted growth (OAG), metal-assisted chemical etching (MACE) [198].
Nanowire Transistors: A Next Step for the Low-Power Digital Technology
Published in IETE Journal of Research, 2021
D. Ajitha, K. N. V. S. Vijaya Lakshmi, K. Bhagya Lakshmi
In accordance with this the advancements in engineering due to the latest materials based on the nano-meter scale at the stage of particle, molecules and super molecule structures have rapid progress for the low-power digital technology. Nowadays, the nano-meter scale devices are used for small-sized digital signal system processors, memories, digital electronic circuits, auto power calculation systems and interfaces [10]. The III–V group Nanowires are now extensively providing high-performance selectors with high material properties. NW is attractive to integrate highly scaled memory cells at minimal memory cell area with low power. This combination further maintains material compatibility and reduces process complexity [11]. The applications of Nanowire are emphasized electronics and optical devices. The electronic and chemical properties of II-IV, III-V can be tailored to the wide range of applications [12].
Synthesis and modelling of the mechanical properties of Ag, Au and Cu nanowires
Published in Science and Technology of Advanced Materials, 2019
Nurul Akmal Che Lah, Sonia Trigueros
Crystallinity, defects and grain boundaries crucially affect properties of bulk metals. For instance, the strength of bulk metals can be increased via cold work hardening, precipitation hardening and grain-boundary hardening techniques which depend upon the restriction and hindering of dislocation movements [2,237]. However, the strengthening methods of nanoscale structures which rely on the similar concept of incorporation of impurities may be ineffective due to the facile surface segregation and expulsion. For quite a while, physicists and chemists believed in the concept of ‘the smaller is stronger’. That is, as the diameter of nanowires is reduced, and the yield strength or hardness increases accordingly. Thus, nanowires possess ultra-high strength compared to that of their macroscopic counterpart. As mentioned above, the high yield strength of nanowires stems from the presence of tiny particles that control dislocation activity. The microstructure control is one of the effective ways of controlling the mechanical properties of nanowire structures. Precise control of grain orientation and grain-boundary organisation within the penta-twinned nanowires account for their exceptional local strength and brittle failure. The principle underlying this theory is that the intersect grains within the twinning boundaries extend along the entire wire length to produce the homogeneous hardened structure. Free-standing coinage metal nanowires demonstrated grain-boundary hardening owing to the ability to fully control the grain orientation and boundaries within the structures. Therefore, observing and studying bending deformation or elastic resonance allow researchers to control quantum states in nanowires, which is useful for producing novel nanowire-based spintronic and photonic devices [238–240].