Results 21 to 30 of about 62,857 (189)

Colossal permittivity and humidity sensing properties of CaCu3Ti4O12 ceramics derived from cockle shell CaCO3 via CO2 absorption [PDF]

Scientific Reports
Cockle shells served as a sustainable and non-toxic calcium source for CO2 capture through carbonation–calcination cycles. In this study, CaCO3 derived from cockle shells was used to synthesize CaCu3Ti4O12 (CCTO) ceramics via the solid-state reaction ...
Kaniknun Sreejivungsa, Suppanat Kosolwattana, Morakot Sakulsombat, Prasit Thongbai   +3 more
doaj   +2 more sources

Colossal Cryogenic Electro‐Optic Response Through Metastability in Strained BaTiO3 Thin Films [PDF]

Advanced Materials, Volume 38, Issue 3, 13 January 2026.
Utilizing the thermodynamic theory of optical properties, a colossal cryogenic electro‐optic response in BaTiO3 thin films is designed and demonstrated by stabilizing a low symmetry metastable monoclinic phase via epitaxial strain tuning with an electro‐optic response reaching ≈2516 pm V−1 at 5 K. This approach represents a new paradigm for engineering
Albert Suceava, Sankalpa Hazra, Aiden Ross, Ian Reed Philippi, Dylan Sotir, Brynn Brower, Lei Ding, Yingxin Zhu, Zhiyu Zhang, Himirkanti Sarkar, Saugata Sarker, Yang Yang, Suchismita Sarker, Vladimir A. Stoica, Darrell G. Schlom, Long‐Qing Chen, Venkatraman Gopalan   +16 more
wiley   +2 more sources

Colossal permittivity with ultra-wide temperature stability in Bi + Ca co-doped BaTiO3

Journal of Materiomics
The poor temperature stability of the BaTiO3 ceramic has always been the main problem limiting their application. This situation has been improved but sacrifices the intrinsic polarization, which significantly reduces the dielectric constant.
Tingting Fan, Qi Shi, Wenrong Xiao, Guangzu Zhang, Feng Huang, Wenlin Wang, Wen Dong, Shenglin Jiang, Jing Wang   +8 more
doaj   +2 more sources

Colossal dielectric permittivity and superparaelectricity in phenyl pyrimidine based liquid crystals [PDF]

Journal of Materials Chemistry C
Synthesized organic fluids with large longitudinal dipole moments are shown to demonstrate superparaelectricity.
Panarin, Y.P., Jiang, W., Yadav, N., Sahai, M., Tang, Y., Zeng, X., Panarina, O.E., Mehl, G.H., Vij, J.K.   +8 more
openaire   +5 more sources

Dielectric Properties of Co-Doped TiO₂ with Mg and Nb for Energy Storage Applications [PDF]

Nanomaterials
Titanium dioxide is attractive for energy storage due to its abundance, stability, non-toxicity, low cost, and favorable electronic/optical properties.
L. Ferchaud, J. P. F. Carvalho, S. R. Gavinho, F. Amaral, L. I. Toderascu, G. Socol, L. C. Costa, R. Benzerga, S. Soreto Teixeira   +8 more
doaj   +2 more sources

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   +2 more sources

Mechanisms of enhanced performance in Zr4+/Ta5+ codoped rutile–TiO2 ceramics via broadband dielectric spectroscopy [PDF]

Scientific Reports
Aliovalent dopant codoped rutile–TiO2 materials have garnered attention due to their excellent performance properties, characterized by low loss tangent (tanδ), high dielectric permittivity (ε′), and stable ε′ over a broad temperature range.
Yasumin Mingmuang, Narong Chanlek, Masaki Takesada, Viyada Harnchana, Wirat Jarernboon, Pairot Moontragoon, Pornjuk Srepusharawoot, Ekaphan Swatsitang, Prasit Thongbai   +8 more
doaj   +2 more sources

The Fundamental Mechanism Behind Colossal Permittivity in Oxides (article)

, 2019
Colossal permittivity materials exhibit extreme polarization in an applied electric field, providing applications in electronics and energy transmission. Understanding the atomic‐scale mechanism behind colossal permittivity remains a challenging task and
CJ Price (21832004), SP Hepplestone (21843203), SG Davies (7776137), NT Taylor (21873797), FH Davies (21873800)   +4 more
core   +6 more sources

Synergistic Grain Refinement and Insulating Phase Formation via Zr4+ Doping for Low-Loss Colossal Permittivity in (In,Nb) Codoped TiO2 Ceramics [PDF]

ACS Omega
Panpan Xu, Xiaole Qiu, Bing Sun, Li Sun, Ensi Cao, Wentao Hao   +5 more
doaj   +2 more sources

High dielectric constant and low temperature ferroelectric-phase-transition in Ca, Pb co-doped BiFeO3

Results in Physics, 2021
BiFeO3 was co-doped with (Ca, Pb) to obtain Bi1-x(Ca1/2Pb1/2)xFeO3 (x = 0, 0.1 and 0.3) and their structural, morphological, dielectric and ferroelectric properties were studied.
Rida Ahmed, RenJun Si, Sajid ur Rehman, Yi Yu, QiuJu Li, Chunchang Wang   +5 more
doaj   +1 more source