A5066536064- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Physics of Superconductivity and Magnetism
- Electronic and Structural Properties of Oxides
- Magnetic and transport properties of perovskites and related materials
- Thermal Radiation and Cooling Technologies
- Thermal properties of materials
- Advanced Thermodynamics and Statistical Mechanics
- Quantum Dots Synthesis And Properties
- Smart Cities and Technologies
- Advanced Condensed Matter Physics
- Surface and Thin Film Phenomena
- Transition Metal Oxide Nanomaterials
- Heusler alloys: electronic and magnetic properties
- Thermal Expansion and Ionic Conductivity
- High Entropy Alloys Studies
Luleå University of Technology
2021-2024
National University of Science and Technology
2019-2022
National Research University Higher School of Economics
2021
Sohag University
2019
Nanostructured materials and nanocomposites have shown great promise for improving the efficiency of thermoelectric materials. Herein, Fe nanoparticles were imbedded into a CrN matrix by combining two physical vapor deposition approaches, namely, high-power impulse magnetron sputtering nanoparticle gun. The combination these techniques allowed formation in which remained intact without intermixing with matrix. electrical thermal transport properties investigated compared to those monolithic...
Among the existing materials for heat conversion, high-entropy alloys are of great interest due to tunability their functional properties. Here, we aim produce single-phase oxides composed Co-Cr-Fe-Mn-Ni-O through spark plasma sintering (SPS), testing thermoelectric (TE) This material was successfully obtained before via a different technique, which requires very long processing time. Hence, main target this work is apply sintering, much faster and scalable process. The samples were sintered...
This study aims to estimate and explore the experience of introducing renewable energy use in context world’s smart cities. In this regard, points out that green is an important part sustainable development. Environmental problems are a matter global concern. Hence development one approaches end harmful anthropogenic impact. The work includes quantitative assessment methods, for example, statistics, analysis, analogy, synthesis. As result, analysis confirms effective city impossible without...
In this study, we demonstrate that introduction of rare-earth elements, R = La or Pr, into the Bi–O charge reservoir layer BiCuSeO leads to an increase both carrier concentration and effective mass. Although mobility slightly decreases upon Bi3+ R3+ substitution, electronic transport properties are significantly improved in a broad temperature range from 100 800 K. particular, electrical resistivity by 2 times, while Seebeck coefficient drops 323 238 μV K–1 at Thus, power factor nearly 3 μW...
Thermoelectric materials convert waste heat into electric energy. Oxyselenide-based material, specifically, p-type BiCuSeO, is one of the most promising for these applications. There are numerous approaches to improve heat-to-electricity conversion performance. Usually, applied individually, starting from pure intrinsic material. Higher performance could, however, be reached by combining a few strategies simultaneously. In current work, yttrium, niobium, and phosphorous substitutions on...
Thermoelectric materials allow a direct conversion of waste heat into electric energy. Oxiselenide-based are promising candidates to be used within the temperature range between room and 500°C. Specifically, p-type BiCuSeO is considered one most for these applications. However, intrinsic properties this compound not sufficient reaching an efficiency above 30%. There numerous approaches improve heat-to-electricity performance, such as element substitution, nanostructuring, vacancies...