Results 261 to 270 of about 140,570 (332)

Transient Terahertz Oscillations During Photoinduced Polarization Topology Reconfiguration in Ferroelectric Superlattices

Advanced Science, EarlyView.
Terahertz resonances in crystalline heterostructures could close a spectral gap between conventional electronics and photonics while opening new windows on non‐equilibrium lattice dynamics. Femtosecond optical screening of the depolarization field in epitaxial PbTiO3/SrTiO3 superlattices launches a collective polar mode that oscillates near 1 THz and ...
Deepankar Sri Gyan, Hyeon Jun Lee, Xiangwei Guo, Youngjun Ahn, Samuel D. Marks, Mohammed H. Yusuf, Matthew Dawber, James M. Glownia, Diling Zhu, Takahiro Sato, Sanghoon Song, Haidan Wen, Jia‐Mian Hu, Paul G. Evans   +13 more
wiley   +1 more source

Effect of nitrogen radio frequency plasma on the structure, dielectric anisotropy, and electrical performance of liquid crystal nanocomposite. [PDF]

Sci Rep
Khadem Sadigh M, Daneshfar A, Sayyar Z, Ranjkesh A.   +3 more
europepmc   +1 more source

Meso‐Crowned Porphyrin as a Dual Cavity Hybrid Macrocycle for Improving the Efficiency and Stability of Perovskite Solar Cells

Advanced Science, EarlyView.
This study demonstrates a dual‐functional porphyrin‐based passivation molecule, [12]‐C‐4POR, capable of simultaneously coordinating Pb2+ and Li+ ions through its porphyrin core and crown ether moiety, respectively. This molecule effectively reduces trap‐state density, suppresses non‐radiative recombination, and mitigates Li+ migration at the perovskite/
Muhammad Ans, Murat Ebic, Rafał A. Grzelczak, Joanna Kruszyńska, Kostiantyn Nikiforow, Pankaj Yadav, Bartosz Szyszko, Seckin Akin, Daniel Prochowicz   +8 more
wiley   +1 more source

Free space method using a vector network analyzer to determine the dielectric permittivity of materials in microwave range

, 2019
Н. А. Певнева, А. Л. Гурский, А. М. Кострикин   +2 more
openalex   +1 more source

Synergistic impact of mesoporous Zn/Al-LDH nanorods for developing dielectric and thermal properties of epoxy as insulation in GIS/GIL. [PDF]

Sci Rep
Ramadan M, Ezzat M, Abd-Allah MA, El-Gamal SMA, Said A.   +4 more
europepmc   +1 more source

Quasi‐Antipolar Nanoclusters Driven Superior Energy Storage in High‐Entropy Relaxor Ferroelectrics

Advanced Science, EarlyView.
Quasi‐antipolar nanoclusters are engineered in lead‐free NaNbO3‐based high‐entropy relaxors that weaken polar nanoregion coupling and induce distinct ferroelectric transition under high fields to enable desirable polarization response. This breakthrough system achieves ultrahigh recoverable‐energy‐density (≈18.3 J cm−3), efficiency (≈91.5%), and ...
Ao Tian, Zehao Li, Qingkang Jiang, Xiang Wu, Xuewen Jiang, Xin Gao, Xiaokuo Er, Mohamed Mahmoud, Maqbool Ur Rehman, Liqiang Liu, Aiwen Xie, Tengfei Hu, Ruzhong Zuo   +12 more
wiley   +1 more source

Nature of the Dielectric Anomaly in Na_0.5Bi_0.5TiO₃-Based Ferrolectrics. [PDF]

Materials (Basel)
Birks E, Dunce M, Svirskas Š, Kežionis A, Banys J, Kholkin A.   +5 more
europepmc   +1 more source

Effect of moisture content variation on dielectric properties of seeds of multipurpose species in 20 MHz-3 GHz frequency range. [PDF]

Sci Rep
Budzeń M, Kafarski M, Majcher J, Szypłowska A, Wilczek A, Lewandowski A, Leśniak T, Gałęzewski L.   +7 more
europepmc   +1 more source

Silicon Effect on Conductive Behavior in Rubber Recycled Composites. [PDF]

Polymers (Basel)
Marín-Genescà M, Mujal Rosas R, García Amorós J, Massagues L, Colom X.   +4 more
europepmc   +1 more source

Biomimetic Design and Extrusion-Based 3D Printing of TiO₂ Filled Composite Sphere Scaffolds: Energy-Absorbing and Electromagnetic Properties. [PDF]

Biomimetics (Basel)
Akhmatnabiev M, Petrov A, Timoshenko M, Sychov M, Diachenko S, Arsentev M, Bakulin A, Skorb E, Nosonovsky M.   +8 more
europepmc   +1 more source