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This invention details a novel two-dimensional transition metal based asymmetric supercapacitor (ASC) that significantly advances energy storage technology. The key technical solution involves fabricating the ASC using crucially employing seawater as the electrolyte. This unique combination of materials and electrolyte is the central inventive feature, aiming to enhance
This invention provides novel methods to reduce Schottky barrier height and contact resistance in advanced Metal-Oxide-Semiconductor (MOS) transistors, addressing a critical challenge in miniaturized semiconductor devices. The key technical solution involves interface engineering by integrating ultra-thin (5-10 Angstrom) cap layers of specific semiconductor materials between the main semiconductor substrate (SiGe or pure Si) and the contact metal (e.g., TiSiGe, TiSi2, TiGe2). For n-type devices, cap Germanium (Ge) layers are used, while for p-type devices, cap Silicon (Si) layers are employed. A crucial inventive feature is forming a sufficiently thick (20-25 Angstrom) SiGe or Si layer on top of these cap layers
This invention details a highly sensitive and versatile Field-Effect Transistor (FET) sensor designed to detect a wide range of target molecules, including gases, liquids, biomolecules, and chemicals. The core innovation lies in creating a nanocavity within the FET's gate stack region, which serves as the primary sensing surface. When target molecules adsorb onto this nanocavity, they induce a change in the gate stack's work function, leading to a measurable and significant shift in the sensor's threshold voltage (VT).
This invention introduces a novel compound reconfigurable microstrip patch antenna designed for advanced wireless communication, particularly navigation receiver systems like IRNSS. The key technical solution is a compact, three-layer stacked antenna featuring a lower element for L5-band (1.176 GHz), an upper element for S-band (2.492 GHz), and a top layer with an RF PIN diode-loaded octagonal parasitic ring. This architecture, fed by four coaxial feeds, provides simultaneous frequency and polarization diversity.
This invention introduces a novel ceramic composites-based portable electromagnetic relay switch designed for high-frequency applications. The key technical solution involves synthesizing a magnetoelectric (ME) ceramic composite of using a microwave double sintering technique. This method ensures uniform heating and homogeneous grain growth, overcoming limitations of conventional sintering. The key inventive feature is the ME composite's ability to act as a switch that operates in "OFF" mode at high frequencies (above 15MHz)
This invention introduces a novel Flexible and Biodegradable Guar Gum Polymer Film Based TENG (G-TENG), offering an eco-friendly solution for energy harvesting and self-powered sensing. The key technical solution leverages triboelectric nanogenerator principles, utilizing a biodegradable guar gum thin film as the positive triboelectric layer and a biocompatible ecoflex film as the negative layer. A key inventive feature is the use of a graphite-guar gum composite (Gr@GG) as the conductive electrode, enabling efficient charge transfer via contact-separation mode. Results demonstrate impressive electrical performance,
This invention presents a novel polyacrylamide-piperazine hydrogel for the efficient purification of raw biogas. The key technical solution is a specific hydrogel formulation prepared by mixing partially hydrolyzed polyacrylamide (PHPA), NaCl, and piperazine in distilled water, followed by crosslinking with chromium (III) acetate. The key inventive feature is the hydrogel's ability to simultaneously and highly efficiently absorb both CO2 and H2S from raw biogas.
This invention details a pioneering, eco-friendly method for synthesizing silver oxide nanoparticles directly within naphthalene di-imide (NDI)-based vesicles under ambient conditions, circumventing the need for harsh chemicals, high temperatures, or complex equipment typically associated with nanoparticle synthesis. The process involves simply adding silver nitrate (AgNO?) solution to an aqueous NDI vesicular solution, where the Ag?O NPs form in-situ and are stabilized by the vesicles. This breakthrough of
This invention introduces a novel Diaper Waste Based Triboelectric Nanogenerator (D-TENG), addressing critical environmental challenges posed by discarded diapers and PTFE-coated sheets. The key technical solution involves repurposing Super Absorbent Polymer (SAP) gel from used diapers and waste PTFE oven sheets as triboelectric materials. The key inventive feature is the D-TENG's ability to efficiently convert low-frequency mechanical energy (from shaking) into electrical power, with SAP powder acting as the positive and PTFE as the negative triboelectric material.