Origin of low dielectric loss and giant dielectric response in (Nb+Al) co-doped strontium titanate

2018 ◽  
Vol 101 (11) ◽  
pp. 5089-5097 ◽  
Author(s):  
Zichen He ◽  
Minghe Cao ◽  
Liang Zhou ◽  
Lin Zhang ◽  
Juan Xie ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Strontium Titanate ◽  
Dielectric Response ◽  
Low Dielectric ◽  
Giant Dielectric ◽  
Co Doped

Very low dielectric loss and giant dielectric response with excellent temperature stability of Ga 3+ and Ta 5+ co-doped rutile-TiO 2 ceramics

2017 ◽  
Vol 123 ◽  
pp. 15-23 ◽  
Author(s):  
Wattana Tuichai ◽  
Nateeporn Thongyong ◽  
Supamas Danwittayakul ◽  
Narong Chanlek ◽  
Pornjuk Srepusharawoot ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Dielectric Response ◽  
Temperature Stability ◽  
Low Dielectric ◽  
Giant Dielectric ◽  
Co Doped

Giant dielectric response and low dielectric loss in Al2O3 grafted CaCu3Ti4O12 ceramics

2015 ◽  
Vol 117 (9) ◽  
pp. 094103 ◽  
Author(s):  
A. Rajabtabar-Darvishi ◽  
R. Bayati ◽  
O. Sheikhnejad-Bishe ◽  
L. D. Wang ◽  
W. L. Li ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Dielectric Response ◽  
Low Dielectric ◽  
Giant Dielectric

Giant dielectric response in (Nb + Zn) co-doped strontium titanate ceramics tailored by atmosphere

2019 ◽  
Vol 170 ◽  
pp. 166-171 ◽  
Author(s):  
Wengao Pan ◽  
Minghe Cao ◽  
Hongye Wang ◽  
Abdullah Jan ◽  
Hua Hao ◽  
...  
Keyword(s):  
Strontium Titanate ◽  
Dielectric Response ◽  
Giant Dielectric ◽  
Titanate Ceramics ◽  
Co Doped

Reply to comments on ``Giant dielectric response in (Nb + Zn) co-doped strontium titanate ceramics tailored by atmosphere''

2020 ◽  
Vol 186 ◽  
pp. 11-13
Author(s):  
Wengao Pan ◽  
Minghe Cao ◽  
Hongye Wang ◽  
Abdullah Jan ◽  
Hua Hao ◽  
...  
Keyword(s):  
Strontium Titanate ◽  
Dielectric Response ◽  
Giant Dielectric ◽  
Titanate Ceramics ◽  
Co Doped

Surface barrier layer effect in (In + Nb) co-doped TiO2 ceramics: An alternative route to design low dielectric loss

2017 ◽  
Vol 100 (4) ◽  
pp. 1452-1459 ◽  
Author(s):  
Theeranuch Nachaithong ◽  
Pinit Kidkhunthod ◽  
Prasit Thongbai ◽  
Santi Maensiri
Keyword(s):  
Dielectric Loss ◽  
Barrier Layer ◽  
Surface Barrier ◽  
Alternative Route ◽  
Doped Tio2 ◽  
Low Dielectric ◽  
Layer Effect ◽  
Co Doped

Giant dielectric response and charge compensation of Li- and Co-doped NiO ceramics

2012 ◽  
Vol 177 (9) ◽  
pp. 673-677 ◽  
Author(s):  
Yunhua Li ◽  
Liang Fang ◽  
Laijun Liu ◽  
Yanming Huang ◽  
Changzheng Hu
Keyword(s):  
Dielectric Response ◽  
Charge Compensation ◽  
Giant Dielectric ◽  
Co Doped

scholarly journals High-performance colossal permittivity materials of (Nb + Er) co-doped TiO2 for large capacitors and high-energy-density storage devices

2016 ◽  
Vol 18 (35) ◽  
pp. 24270-24277 ◽  
Author(s):  
Mei-Yan Tse ◽  
Xianhua Wei ◽  
Jianhua Hao
Keyword(s):  
Dielectric Properties ◽  
Dielectric Loss ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Secondary Phases ◽  
Storage Devices ◽  
Low Dielectric ◽  
Colossal Permittivity ◽  
Co Doped

Our work shows contributions to the high-performance dielectric properties, including a CP of up to 104–105 and a low dielectric loss down to 0.03 in (Er0.5Nb0.5)xTi1−xO2 materials with secondary phases.

scholarly journals Colossal dielectric constant of NaNbO3 doped BaTiO3 ceramics

2016 ◽  
Vol 34 (2) ◽  
pp. 322-329 ◽  
Author(s):  
Wan Q. Cao ◽  
Ling F. Xu ◽  
Mukhlis M. Ismail ◽  
Li L. Huang
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
Traditional Approach ◽  
Temperature Stability ◽  
Bound State ◽  
High Energy ◽  
Low Dielectric ◽  
Giant Dielectric ◽  
Giant Dielectric Constant ◽  
High Dielectric

AbstractBaTiO3 ceramics doped with 0.40 mol% NaNbO3 were prepared using a traditional approach by sintering at temperature of 1250 °C to 1290 °C. The prepared ceramics was characterized by very good dielectric properties, such as high dielectric constant (1.5 × 105), low dielectric loss (0.1), and good dielectric temperature stability in the −40 °C to 100 °C range for the sample sintered below 1270 °C. The dielectric characteristics obtained with XPS confirmed that Ti4+ ions remain in the state without any change. The huge increase in dielectric constant in NaNbO3 doped BaTiO3 samples occurs when large amount of Ba2+ ions are excited to a high energy bound state of Ba2+ − e or Ba+ to create electron hopping conduction. For samples with the content of NaNbO3 higher than 0.40 mol%, or sintering temperature higher than 1280 °C, compensation effect is dominated by cation vacancies with sharply decreasing dielectric constant and increased dielectric loss. The polaron effect is used to explain the relevant mechanism of giant dielectric constant appearing in the ferroelectric phase.

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