Results 91 to 100 of about 25,320 (296)

The Complex Permittivity of Biological Tissues: A Practical Measurement Guideline

IEEE Access
Despite the significant number of studies published on the measurements of complex permittivity of biological tissues in the last thirty years, implementing a successful measurement program for dielectric measurements can still present a challenge for researchers. Most problems are not theoretical but of methodological or practical nature.
Lourdes Farrugia, Emily Porter, Raquel C. Conceição, Simona Di Meo, Daniela M. Godinho, Julian Bonello, Mykolas Ragulskis, Ilja Ocket, Laura Farina, Marta Cavagnaro, Azadeh Peyman   +10 more
openaire   +3 more sources

Foerster-Type nonradiative energy transfer in media with complex permittivity

, 2023
Conference Name: 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023Date of Conference: 18 July 2023 through 21 July 2023We present the effects of the complex permittivity of a background medium on Foerster-type ...
Hernandez-Martinez, Pedro Ludwig, Demir, Hilmi Volkan, Yucel, Abdulkadir C.   +2 more
core  

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Percolative behavior in complex permittivity and permeability of silver/epoxy nanocomposite at terahertz by time-domain spectroscopy [PDF]

APL Materials
Complex permittivity and permeability govern the electromagnetic (EM) behavior of materials and are critical for advanced high-frequency applications. In this work, we investigate silver/epoxy nanocomposites as a prototypical conductor–insulator system ...
Bo-Wei Tseng, Hua-Yan Chen, Po-Hsiang Chuang, Chan-Shan Yang, Tsun-Hsu Chang   +4 more
doaj   +1 more source

Correlated Charge Transport in an Organic Coulomb Glass

Advanced Materials, EarlyView.
ABSTRACT Advances in the development of organic field‐effect transistors (OFETs), electrically gated organic semiconductors (EGOFETs), and organic electrochemical transistors (OECTs) allow for the operation of these devices at very high charge‐carrier densities, where Coulomb interactions between carriers can be expected to become significant.
Magdalena Sophie Dörfler, Heinz Bässler, Harald Oberhofer, Anna Köhler   +3 more
wiley   +1 more source

Complex Permittivity Measurement by Fano-resonance

Procedia Engineering, 2016
Abstract This paper presents a novel, Fano-resonance based complex permittivity measuring sensor. The Fano-resonance is produced by two nested, open-ended coaxial resonators. The resonance characteristic is an extremely narrow, asymmetric resonance curve. Loading the resonator with any substance, the resonance frequency, and the quality factor of the
Szalay, Z., Nagy, L.
openaire   +1 more source

Potato tuber permittivity during deformation in compression

Research in Agricultural Engineering, 2007
Potato tuber specimens of two varieties (Nicola and Saturna) were deformed in a compression loading/unloading test. The tuber complex permittivity spectrum at frequencies 0.1-500 kHz was measured repeatedly during the deformation.
J. Blahovec, J. Sobotka
doaj   +1 more source

The complex effective surface permittivity of SAW piezoelectric substrates

, 2006
The analysis of the effective surface permittivity which unambiguously characterizes the piezoelectric material features is presented. The use of the effective surface permittivity significantly simplifies the theoretical analysis of the interdigital ...
W. Komorniczak, A. Kawalec
core   +1 more source

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

Advanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani, Justin Neu, Sung‐Joo Kwon, Runqio Song, Zixuan Chen, Tajah Trapier, Paschalis Gkoupidenis, David Ginger, Wei You, Jasper J. Michels, Harald Ade   +10 more
wiley   +1 more source