Results 61 to 70 of about 2,269 (194)

Enhanced dielectric properties of Sr2+ and Zr4+ doped BaTiO3 colossal permittivity metamaterials

EPJ Applied Metamaterials
BaTiO3, as one of the most important functional materials of perovskite structure, is widely used in the electronic industry. However, the dielectric permittivity of BaTiO3 remains relatively low, which greatly limits its practical application in ...
Tang Qingyang, Shi Zhicheng, Xia Shuimiao, Bie Xiaohan, Yang Yujie, Bian Dedong, Xu Daofeng, Fan Runhua   +7 more
doaj   +1 more source

Interfacial contribution to the dielectric response in semiconducting LaBiMn4/3Co2/3O6

, 2008
Impedance measurements have been performed on a sintered polycrystalline sample of the perovskite LaBiMn4/3Co2/3O6. Colossal dielectric permittivity often is measured in this class of semiconducting materials as a result of extrinsic factors. Our results
Filippi, M., Kundu, A. K., Kundys, B., Prellier, W., Ranjith, R.   +4 more
core   +3 more sources

Showcasing the Structure and Properties of Lanthanide‐Doped BaTiO3

Advanced Physics Research, Volume 4, Issue 9, September 2025.
Understanding the defect chemistry of Ln‐doped BTO, as well as the distribution of Ln ions inside the BTO host, is a challenge in the study of functional perovskite oxides. It provides important insights into the future development of Ln‐doped BTO materials, particularly in the context of low‐carbon transition strategies and renewable technologies that
Takeshi Nakagawa, Melita Menelaou, Martina Vrankić   +2 more
wiley   +1 more source

Functional Electrolyte Additives: A Pinch of Salt/Solvent to an Electrolyte for High Energy Density Lithium‐Ion and Lithium–Metal Batteries

Small, Volume 21, Issue 34, August 28, 2025.
Electrolytes, often termed as the “blood” of battery play a decisive role in determining their performance metrics. This review thoroughly analyzes the role of functional electrolyte additives improving the performance and safety of Li‐ion/Li–metal batteries involving film formation, overcharge control, wide temperature and voltage operation ...
Chenrayan Senthil, Amutha Subramani, Ram K. Gupta, Zdeněk Sofer   +3 more
wiley   +1 more source

Influences of Ga3+ doping content on microstructure and interfacial polarization in colossal permittivity GayNb0.025Ti0.975-yO2 ceramics

International Journal of Smart and Nano Materials
Colossal permittivity (CP) materials, particularly co–doped TiO2 ceramics, have garnered significant attention for their potential in high–performance ceramic capacitors.
Wattana Tuichai, Nutthakritta Phromviyo, Navadecho Chankhunthod, Pornjuk Srepusharawoot, Prasit Thongbai   +4 more
doaj   +1 more source

Discovery of Strange Kinetics in Bulk Material: Correlated Dipoles in CaCu3Ti4O12

, 2012
Dielectric spectroscopy of CaCu3Ti4O12 was performed spanning broad ranges of temperature (10-300K) and frequency (0.5Hz-2MHz). We attribute the permittivity step-fall to the evolution of Kirkwood-Fr\"oehlich dipole-correlations; reducing the moment ...
A. M. Awasthi, Fröehlich H., Jitender Kumar   +2 more
core   +1 more source

Dielectric properties of Y and Nb co-doped TiO2 ceramics

Scientific Reports, 2017
In this work, the (Y0.5Nb0.5)xTi1−xO2 (x = 0.001, 0.01, 0.02, 0.04, 0.06 and 0.1) ceramics (as called YNTO) were fabricated by synthesized through a standard solid-state reaction.
Xianwei Wang, Bihui Zhang, Linhai Xu, Xiaoer Wang, Yanchun Hu, Gaohang Shen, Lingyun Sun   +6 more
doaj   +1 more source

Investigation of La3+ Doping Effect on Piezoelectric Coefficients of BLT Ceramics

Archives of Metallurgy and Materials, 2017
Effects of La3+ admixture in barium lanthanum titanate (BLT) ceramics system with colossal permittivity on performance of prospective piezoelectric cold plasma application were studied. Usage of cold atmospheric pressure plasma appears promising in terms
Wodecka-Dus B., Kozielski L., Erhart J., Pawełczyk M., Radoszewska D., Adamczyk M., Bochenek D.   +6 more
doaj   +1 more source

Evidence for power-law frequency dependence of intrinsic dielectric response in the CaCu$_{3}$Ti$_{4}$O$_{12}$

, 2004
We investigated the dielectric response of CaCu$_3$Ti$_4$O$_{12}$ (CCTO) thin films grown epitaxially on LaAlO$_3$ (001) substrates by Pulsed Laser Deposition (PLD).
A. K. Jonscher, Alexander Tselev, Charles M. Brooks, Haimei Zheng, Lourdes Salamanca-Riba, M. A. Subramanian, N. F. Mott, R. Ramesh, Steven M. Anlage   +8 more
core   +1 more source

Mechanistic Insights into the Structural Evolution of ZIF‐67 via Electrospinning Strategy Toward High Electromagnetic Wave Absorption Performance of ZIF‐67‐Derived Carbon Nanofibers

Advanced Science, Volume 12, Issue 26, July 10, 2025.
With 5G and AI robotics rising, electromagnetic radiation risks signal security and health. This work investigates the electromagnetic wave absorption of Co/CNF composites via in situ and ex situ electrospinning strategies. The in situ synthesized sample exhibits superior absorption properties due to enhanced structural uniformity, improved Co ...
Xinhui Cao, Xinyi Wu, Xue Wang, Jiamei Luo, Zhe Zhang, Yi Xue, Guoliang Zhang, Liying Zhang, Hui Zhang, Jianyong Yu   +9 more
wiley   +1 more source