Results 61 to 70 of about 397,952 (307)

Soft modes condensation in Raman spectra of (Pb–La)(Zr–Sn–Ti)O3 ceramics [PDF]

Journal of Advanced Dielectrics, 2019
Low frequency Raman spectra of (Pb0.97La0.02)(Zr0.864Sn0.04Ti0.096)O3 ceramic samples have been studied near cubic to antiferroelectric phase transition at about 200∘C. A set of low frequency soft modes were observed restoring below the transition point,
Alexander N. Vtyurin, Alexander S. Krylov, Svetlana N. Krylova, Alexander S. Oreshonkov, Xiaoyong Wei, Yujun Feng, Ran Xu, Tian Zhao   +7 more
doaj   +1 more source

Complex permittivity measurements at Ka-Band using rectangular dielectric waveguide [PDF]

, 2001
The rectangular dielectric waveguide (RDWG) technique has been developed for the determination of the dielectric constant of materials from effective refractive index measurements in the Q andWbands.
Abbas, Z., Kelsall, R.W., Pollard, R.D.
core   +1 more source

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Dependence of exciton transition energy of single-walled carbon nanotubes on surrounding dielectric materials

, 2007
We theoretically investigate the dependence of exciton transition energies on dielectric constant of surrounding materials. We make a simple model for the relation between dielectric constant of environment and a static dielectric constant describing the
Ando, Bachilo, Bachilo, Chou, Dukovic, Fantini, Hartschuh, Heller, Htoon, J. Jiang, Jiang, Jiang, Jorio, K. Sato, Lebedkin, Lefebvre, Maultzsch, Miyauchi, Miyauchi, Miyauchi, Moore, Ohno, O’Connell, Perebeinos, Plentz, R. Saito, S. Iwasaki, S. Maruyama, Saito, Samsonidze, Souza Filho, Spataru, T. Mizutani, Wang, Y. Miyauchi, Y. Ohno, Zhao   +36 more
core   +1 more source

Structure and Dielectric Properties of Amorphous High-kappa Oxides: HfO2, ZrO2 and their alloys [PDF]

, 2012
High-$\kappa$ metal oxides are a class of materials playing an increasingly important role in modern device physics and technology. Here we report theoretical investigations of the properties of structural and lattice dielectric constants of bulk ...
Guo, Hong, Wang, Jian, Wang, Yin, Zahid, Ferdows   +3 more
core   +2 more sources

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source

Hybrid improper ferroelectricity and phase transition behavior of Li2Nd2Ti3O10 ceramics with A-site ordered triple-layer Ruddlesden-Popper structure

Journal of Materiomics
Hybrid improper ferroelectricity has been extensively reported through theoretical prediction and experimental investigation in the oxides with Ruddlesden-Popper (R–P) structures.
Bi Hui Zhang, Diming Xu, Rui Ze Guo, Lu Liu, Xiao Qiang Liu, Xiang Ming Chen   +5 more
doaj   +1 more source

Repulsive Casimir forces between solid materials with high refractive index intervening liquids [PDF]

, 2010
In order to explore repulsive Casimir/van der Waals forces between solid materials with liquid as the intervening medium, we analyze dielectric data for a wide range of materials as for example PTFE, polystyrene, silica and more than twenty liquids ...
G. Palasantzas, M. Naftaly, P. J. van Zwol   +2 more
core   +4 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

NUMERICAL STUDY AND REMEDIATION OF AC INTERFERENCE CORROSION ON NEIGHBOURING PIPELINES [PDF]

Journal of Engineering Science and Technology, 2018
Buried pipelines for gas and oil are protected by an insulation coating and a Cathodic Protection (CP). However, neighbouring high voltage HV power lines induce an alternating current AC which causes corrosion damages on metallic structures, even in CP ...
F. BABAGHAYOU, B. ZEGNINI, T. SEGHIER
doaj