Results 71 to 80 of about 17,459 (262)

Relative Permittivity Measurement of Microliter Volume Liquid Samples through Microwave Filters. [PDF]

Sensors (Basel), 2023
Yasin A, Gogosh N, Sohail SI, Abbas SM, Shafique MF, Mahmoud A.   +5 more
europepmc   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

Advanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang, Christopher Wöpke, Toni Seiler, Jared Faisst, Mathias List, Meike Kuhn, Bekcy Joseph, Alexander Ehm, Dietrich R. T. Zahn, Yana Vaynzof, Eva M. Herzig, Roderick C. I. Mackenzie, Uli Würfel, Maria Saladina, Carsten Deibel   +14 more
wiley   +1 more source

Dynamic Permittivity Measurement of Ground-Tire Rubber (GTR) during Microwave-Assisted Devulcanization. [PDF]

Polymers (Basel), 2022
Pérez-Campos R, Fayos-Fernández J, Monzó-Cabrera J, Martín Salamanca F, López Valentín J, Catalá-Civera JM, Plaza-González P, Sánchez-Marín JR.   +7 more
europepmc   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Whispering gallery resonator method for measurementspermittivity

Journal of Telecommunications and Information Technology, 2002
The new method of measuring permittivity is described. The measurements are performed using whispering gallery mode open dielectric resonators. The accuracy is assured by applications of the mode matching method.
Krzysztof Derzakowski, Adam Abramowic, Jerzy Krupka   +2 more
doaj   +1 more source

A Method for Broadband Polyimide Permittivity Measurement of Silicon Interposer Applied for High Speed Digital Microsystem. [PDF]

Micromachines (Basel), 2022
Zheng Z, Wang Y, Han L, Wu D, Mo D, Tian W.   +5 more
europepmc   +1 more source

Multi‐Stimuli Responsive Angstrom‐Scale Two‐Dimensional Channels of Natural Layered Materials

Advanced Materials, EarlyView.
Å‐scale ion channels naturally formed within the interlayers of vermiculite clay enable ionic current modulation in response to mechanical, chemical, and electrical stimuli. Coupled pressure and electric fields induce reversible streaming current (Istream) polarity inversion, which is explained by a modified surface charge regulation model.
Raj Kumar Gogoi, Arghyadeep Paul, Ankit Bhardwaj, Hiran Jyothilal, Narayana R. Aluru, Boya Radha   +5 more
wiley   +1 more source

Half‐Wavelength Uncertainty Compensated Accurate Estimation of Dielectric Constant of Low‐Loss Dielectrics at GHz Frequencies

IET Microwaves, Antennas & Propagation
The presented paper addresses the divergence issue of Nicholson–Ross–Weir (NRW) algorithm encountered during the electrical characterisation of half‐wavelength or thicker low‐loss dielectric materials.
Virendra S. Chauhan
doaj   +1 more source

Dielectric Permittivity Measurement Using Open-Ended Coaxial Probe-Modeling and Simulation Based on the Simple Capacitive-Load Model. [PDF]

Sensors (Basel), 2022
Šarolić A, Matković A.
europepmc   +1 more source