A5050510354- 2D Materials and Applications
- Quantum Dots Synthesis And Properties
- MXene and MAX Phase Materials
- Advanced Thermoelectric Materials and Devices
- Graphene research and applications
- Electrochemical sensors and biosensors
- Conducting polymers and applications
- High Entropy Alloys Studies
- Advanced biosensing and bioanalysis techniques
- Phase-change materials and chalcogenides
- Chalcogenide Semiconductor Thin Films
- Advanced Thermodynamics and Statistical Mechanics
- Insect and Arachnid Ecology and Behavior
- Machine Learning in Materials Science
- Nanocluster Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Silk-based biomaterials and applications
- ZnO doping and properties
- Neurobiology and Insect Physiology Research
- Perovskite Materials and Applications
- Adhesion, Friction, and Surface Interactions
- Supercapacitor Materials and Fabrication
Bahir Dar University
2024-2025
Jimma University
2022-2024
Indian Institute of Technology Kharagpur
2022
In thermoelectric (TE) devices, geometry of the TE‐leg has a significant impact on its energy conversion efficiency. TE leg fabrication still relies traditional methods with regular solid shapes which limits present work, different geometries (solid, mesh, hollow, and honeycomb) based double‐half‐Heusler (hH) (Ti 1.75 Zr 0.25 Ni 1.5 Fe 0.5 SnSb) high‐entropy alloy are 3D printed using direct ink writing technique. Through rheological properties, good shear‐thinning characteristics excellent...
Two-dimensional (2D) materials have been shown to be efficient in energy harvesting. Here, we report the use of waste heat generate electricity via combined piezoelectric and triboelectric properties 2D cobalt telluride (CoTe2). The piezo-triboelectric nanogenerator (PTNG) produced an open-circuit voltage ∼5 V under 1 N force effect temperature range 305-363 K shows a four-fold conversion efficiency improvement. piezo-tribogenerator excellent characteristics with maximum ∼10 V, fast response...
Abstract Two-dimensional (2D) layered transition-metal based tellurides (chalcogens) are known to harness their surface atoms’ characteristics enhance topographical activities for energy conversion, storage, and magnetic applications. The gradual stacking of each sheet alters the subtle features such as lattice expansion, leading several phenomena rendering tunable properties. Here, we have evaluated thickness-dependent mechanical properties (nanoscale mechanics, tribology, potential...
Two-dimensional (2D) materials have received a surge in research interest due to their exciting range of properties. Here, we show that 2D cobalt telluride (Co2Te3), successfully synthesized via liquid-phase exfoliation an organic solvent, exhibits weak ferromagnetism behavior at room temperature. Under small amount mechanical pressure, the material shows electrical signal. also study effect magnetic field on strain generation atomically thin Co2Te3 and observe linear relationship between...
Transition-metal tellurides (TMTs) are promising materials for "post-graphene age" nanoelectronics and energy storage applications owing to their industry-standard compatibility, high electron mobility, large spin-orbit coupling (SOC), etc. However, tellurium (Te) having a larger ionic radius (Z = 52) broader d-bands endows TMTs with semimetallic nature, restricting application in photonic optoelectronic domains. In this work, we report the optical properties of quantum-confined...
Pesticides are crucial in modern agriculture because they reduce pests and boost yield, but also represent major risks to human health the environment; therefore, it is important monitor their presence food. Reliable precise detection techniques possible ways address this issue. In work, we utilize atomically thin (two-dimensional) cobalt telluride (CoTe2) with a high surface area charge as template material detect mancozeb using spectroscopic electrochemical techniques. When (MNZ) molecules...
We report a previously unreported application of the spatial self-phase modulation (SSPM) technique for recognizing solute-solvent interaction in suspension 2D material. Broadband optical absorption Co2Te3 leads to nonlinear (NLO) susceptibility monolayer, i.e., χMono(3) 1.5 ×10-9 (3.3 ×10-9) esu at 532 (632) nm, which is 1-2 orders higher than CoTe and CoTe2. The fine structure SSPM patterns analyzed explore foundations observed NLO effects. With increasing polarity liquid media, change...
Abstract The present work aimed to investigate the deformation behavior of complex ant mound architectures under compression. We have used cement casting method extract four different nest morphologies. These casted structures were digitalized using a 3D micro-computer tomography scan. digitized simulated loading conditions finite-element methods (FEMs). In order supplement numerical understanding, digital printed and experimentally tested uniaxial conditions. Ants produce variety for...
Abstract Polyaniline-based materials have been widely used for supercapacitors due to their outstanding properties, such as high specific capacitance, excellent electrochemical and ease of synthesis methods; however, the short-cycle stability PANI-based limits commercialization. Herein, we synthesized polyaniline (PANI) nanomaterials, which meet capacitance through chemical oxidative polymerization aniline with ammonium persulfate (APS) in aqueous salicylic acid. The electrode were...
Two dimensional (2D) layered transition-metal-based tellurides (chalcogens) are known to harness their surface atoms characteristics enhance topographical activities for energy conversion, storage, and magnetic applications. High due unsaturated dangling bonds larger lateral size than the thickness (volume) makes them a potential candidate emerging electronics. Nevertheless, gradual stacking of each sheet alters atoms' subtle features, such as lattice expansion, leading several phenomena...