A5037328412- ZnO doping and properties
- Magnetic and transport properties of perovskites and related materials
- Gas Sensing Nanomaterials and Sensors
- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Advanced Thermoelectric Materials and Devices
- Physics of Superconductivity and Magnetism
- Copper-based nanomaterials and applications
- Chalcogenide Semiconductor Thin Films
- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Advanced Condensed Matter Physics
- Thin-Film Transistor Technologies
- Thermal Expansion and Ionic Conductivity
- Copper Interconnects and Reliability
- Multiferroics and related materials
- Ga2O3 and related materials
- Advanced ceramic materials synthesis
- Thermal properties of materials
- Metallurgical Processes and Thermodynamics
- Transition Metal Oxide Nanomaterials
- Dielectric properties of ceramics
- Nuclear materials and radiation effects
- Perovskite Materials and Applications
- Electrical and Thermal Properties of Materials
Jožef Stefan Institute
2015-2024
Shanghai Institute of Ceramics
2017
Chinese Academy of Sciences
2017
Centre of Excellence NAMASTE
2011-2015
University of Belgrade
2013
Jožef Stefan International Postgraduate School
2012
American Ceramic Society
2003-2007
Université Toulouse III - Paul Sabatier
2004
University of Ljubljana
1990-2003
National Institute of Standards and Technology
1997
Abstract Raman scattering spectroscopy has been used for the characterization of zinc oxide nanoparticles obtained by mechanical activation in a high‐energy vibro‐mill and planetary ball mill. modes observed spectra nonactivated sample are assigned to ZnO monocrystal, while mechanically activated samples point out structural stoichiometric changes, depending on milling time choice equipment. Observed redshift peak broadening E 2 high 1 (LO) first‐order attributed increased disorder induced...
This work presents a novel, simpler and faster bottom-up approach to produce relatively high performance thermoelectric Al-doped ZnO ceramics from nanopowders produced by interfacial reaction followed consolidation with Spark Plasma Sintering.
Zinc oxide nanopowders were synthesized by the sol–gel method from an ethanol solution of zinc acetate dihydrate. Detailed structural and microstructural investigations carried out using x-ray diffraction, Raman spectroscopy, thermogravimetric differential thermal analyses, as well high-resolution transmission electron microscopy (TEM) field-emission scanning microscopy. The intermediate compound reaction was layered hydroxide that further transforms into hexagonally shaped ZnO crystalline...
We investigated the high-temperature thermoelectric properties of Ga:ZnO bulk compounds, synthesized using a simple and scalable solid-state process. The effects low gallium content (x ≤ 0.04 in Zn1-xGaxO1+x/2) on structural features electrical/thermal are reviewed. Transmission electron microscopy analyses showed that 2D, nonperiodic defects had formed from doping as x = 0.01 Ga. description these nanoscale interfaces is, for first time, carefully such low-Ga-content samples by HAADF-STEM...
The nonlinear response of a material to an external stimulus is vital in fundamental science and technical applications. power-law current–voltage relationship varistor one such example. An excellent example behavior the exhibited by Bi2O3-doped ZnO ceramics, which are cornerstone commercial materials for overvoltage protection. Here, we report on sustainable, ZnO-based ceramic, without volatile Bi2O3, that based Cr2O3 as former oxides Ca, Co, Sb performance enhancers. has ultrahigh α up...
Abstract Flat panel display technology seems to be an ever‐expanding field developing into a multibillion dollar market. A set of technical solutions involve transparent conducting film (TCF) that is today still dominated by indium ‐ tin oxide (ITO). In race find alternatives would avoid the pitfalls, mainly due its increasing price and limited natural availablity, replacement materials have been extensively investigated. This work demonstrates exploiting basic principles crystal growth in...
This paper presents an innovative approach to the integration of thermoelectric microgenerators (μTEGs) based on thick-film thermopiles planar constantan–silver (CuNi-Ag) and calcium cobaltite oxide–silver (Ca3Co4O9-Ag) with radio frequency identification (RFID) technology. The goal was consider using TEG for active or semi-passive RFID tag. proposed implementation would allow communication distance be increased even operated without changing batteries. article discusses principles (μTEGs),...
The effects of adding small quantities SnO 2 to the basic ZnO–Bi O 3 varistor composition were studied in terms phase reactions, microstructural development, and formation inversion boundaries. Scanning transmission electron microscopy studies showed that boundaries, triggered by addition , cause anisotropic grain growth early stages sintering. ZnO grains include boundaries grow exaggeratedly, at expense normal grains, until they dominate microstructure. Higher additions lead an increase...
Microstructure development in Sb 2 O 3 ‐doped ZnO was studied to evaluate the influence of inversion boundaries (IBs) on grain growth. In general, addition is believed inhibit growth via formation spinels and IBs, but we have shown that even conditions exaggerated can be created this system. We designed an experiment for diffusional doping under slightly increased partial pressure . high‐concentration regime observed no spinels, yet grains were small inhibited growth, while low‐concentration...