Results 71 to 80 of about 170,651 (280)

A Close Look at the Local Structure of Functional Polymers: The Example of Poly(Vinylidene Fluoride)

Advanced Functional Materials, EarlyView.
To accurately develop structure‐property relationships in functional macromolecules, it is increasingly important to consider the local chain arrangement in addition to long‐range order. It is demonstrated in the case of poly(vinylidene fluoride) that solid‐state nuclear magnetic resonance (NMR) spectroscopy can provide detailed insights into the local
Henry J. Kantrow, Claire Welton, Neethu Thomas, Vincent Sarou‐Kanian, Tomasz Pawlak, Natalie Stingelin, G. N. Manjunatha Reddy   +6 more
wiley   +1 more source

Peculiarities of the interface between high-permittivity dielectrics and semiconductors

Frontiers in Materials, 2014
Replacement of the silicon dioxide thin films in metal-oxide-semiconductor structures for microelectronics with high permittivity dielectrics (high-k) is a crucial step in the further down-scaling of microelectronic devices.
Nenad eNovkovski
doaj   +1 more source

Coexistence of the Critical Slowing Down and Glassy Freezing in Relaxor Ferroelectrics

, 1999
We have developed a dynamical model for the dielectric response in relaxor ferroelectrics which explicitly takes into account the coexistence of the critical slowing down and glassy freezing.
A. Levstik, A. Tagantsev, A.E. Glazounov, B. E. Vugmeister, B.E. Vugmeister, B.E. Vugmeister, B.E. Vugmeister, D. Vieland, E. Courtens, G. Burns, G.A. Samara, H. Rabitz, J. Toulouse, K. Binder, L.E. Cross, M.D. Glinchuk, N. de Mathan, R. Blinc, R. Blinc, R. Sommer, S.B. Vakhrushev, T. Egami, V. Westphal, W. Kleemann   +23 more
core   +1 more source

Conductivity and permittivity of dispersed systems with penetrable particle-host interphase [PDF]

, 2013
A model for the study of the effective quasistatic conductivity and permittivity of dispersed systems with particle-host interphase, within which many-particle polarization and correlation contributions are effectively incorporated, is presented.
Semenov, A. K., Sushko, M. Ya.
core   +3 more sources

The Role of Fluorine‐Functionalized Organic Spacers for Defect Passivation and Low‐Dimensional Phase Formation in 3D MAPI Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
Fluorine‐functionalized organic spacers (2F, 3F, 5F) are investigated to identify as optimal passivation agents for 3D MAPI perovskite solar cells (PSCs). The study highlights how altering fluorine positioning affects defect passivation, low‐dimensional phase (LDP) formation, and stability, emphasizing its role in molecular interactions and offering ...
Ali Semerci, Javier Urieta‐Mora, Sander Driessen, Ali Buyruk, Rik Hooijer, Agustín Molina‐Ontoria, Bülent Alkan, Seckin Akin, Mattia Fanetti, Harishankar Balakrishnan, Achim Hartschuh, Shuxia Tao, Nazario Martín, Peter Müller‐Buschbaum, Saim Emin, Tayebeh Ameri   +15 more
wiley   +1 more source

Detection of physiological concentrations of GABA using dielectric spectroscopy - A pilot study

Journal of Electrical Bioimpedance, 2023
Gamma-aminobutyric acid (GABA) is a major inhibitory neurotransmitter that is present at a relatively low level throughout the normal adult human brain. Abnormal GABA levels are found in people with neurodegenerative disorders such as Parkinson’s disease,
Hou Jie, Strand-Amundsen Runar, Martinsen Ørjan G.   +2 more
doaj   +1 more source

Exploring Electronic States and Ultrafast Electron Dynamics in AlInP Window Layers: The Role of Surface Reconstruction

Advanced Functional Materials, EarlyView.
This study examines the surface characteristics of AlInP (001), crucial for advanced solar cells and photoelectrochemical devices. Using theoretical modeling and experiments, it identifies how phosphorus‐rich and indium‐rich surfaces create mid‐gap states that pin the Fermi level and influence ultrafast electron dynamics.
Mohammad Amin Zare Pour, Sahar Shekarabi, Isaac Azahel Ruiz Alvarado, Jonathan Diederich, Yuyings Gao, Agnieszka Paszuk, Dominik C. Moritz, Wolfram Jaegermann, Dennis Friedrich, Roel van de Krol, Wolf Gero Schmidt, Thomas Hannappel   +11 more
wiley   +1 more source

Ionic Transportation and Dielectric Properties of YF₃:Eu³⁺ Nanocrystals

Nanomaterials, 2018
The ionic transportation and dielectric properties of YF3:Eu3+ nanocrystals are investigated by AC impedance spectroscopy. The ion diffusion coefficient and conductivity increase along with the doping concentration and reach their highest values at 4% of
Xiaoyan Cui, Tingjing Hu, Jingshu Wang, Junkai Zhang, Xin Zhong, Yanli Chen, Xuefei Li, Jinghai Yang, Chunxiao Gao   +8 more
doaj   +1 more source

Electromagnetic tunneling through a single-negative slab paired with a double-positive bi-layer [PDF]

, 2011
We show that resonant tunneling of electromagnetic fields can occur through a three-layer structure composed of a single-negative (i.e., either negative-permittivity or negative-permeability) slab paired with bi-layer made of double-positive (i.e ...
Andrea Alù, Giuseppe Castaldi, Ilaria Gallina, M. Born, Nader Engheta, Vincenzo Galdi   +5 more
core   +3 more sources

Carbon Nanotube 3D Integrated Circuits: From Design to Applications

Advanced Functional Materials, EarlyView.
As Moore's law approaches its physical limits, carbon nanotube (CNT) 3D integrated circuits (ICs) emerge as a promising alternative due to the miniaturization, high mobility, and low power consumption. CNT 3D ICs in optoelectronics, memory, and monolithic ICs are reviewed while addressing challenges in fabrication, design, and integration.
Han‐Yang Liu, Yun Sun, Dong‐Ming Sun, Hui‐Ming Cheng   +3 more
wiley   +1 more source