Results 91 to 100 of about 21,537 (304)

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Comments to: A Novel Low-Cost Instrumentation System for Measuring the Water Content and Apparent Electrical Conductivity of Soils, Sensors, 15, 25546–25563

Sensors, 2018
The article comments on claims made by Rêgo et al. about the sensor they developed to determine soil water content and its salinity via the admittance measurement of electrodes embedded in the soil.
Xavier Chavanne, Alain Bruère, Jean-Pierre Frangi   +2 more
doaj   +1 more source

Permittivity measurement of spherical objects using a reverberation chamber

, 2014
This paper presents a new permittivity measurement method by using a reverberation chamber (RC). The absorption cross section (ACS) is measured first. By comparing the measured ACS with the analytical value and considering the frequency dependency, both ...
Xing, L, Yi Huang, Lei Xing, Tian, Z, Qian Xu, Huang, Y, Xu, Q, Zhu, X, Zhihao Tian, Xu Zhu   +9 more
core   +1 more source

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

Advanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza, Karol Strutyński, Shuai Fu, Yifan Chen, Natalia M. Padial, Isabel del Barrio Gómez, Carlos Martí‐Gastaldo, Andrei N. Khlobystov, Mischa Bonn, Hai I. Wang, Manuel Melle‐Franco, Aurelio Mateo‐Alonso   +11 more
wiley   +1 more source

Estimation of Permittivity of Films Using the Free-Space Measurement Method at Ka-Band

IEEE Access
This work introduces a refined technique for the estimation of films permittivity within the Ka-band using free-space measurement method. Addressing the challenge of wrong solutions in permittivity estimation, our approach incorporates a frequency ...
Daeyeong Yoon, Jihyung Kim, Dong-Yeop Na, Yong Bae Park   +3 more
doaj   +1 more source

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

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

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

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