Results 121 to 130 of about 3,397,378 (372)

An Enhanced Saline Soil Dielectric Constant Model Used for Remote Sensing Soil Moisture and Salinity Retrieval

Remote Sensing
The soil dielectric constant model is essential for retrieving soil properties based on microwave remote sensing. However, the existing saline soil dielectric constant models perform poorly in simulating the dielectric constant of soil with high water ...
Liang Gao, Xiaoning Song, Xiaotao Li, Jianwei Ma, Pei Leng, Weizhen Wang, Xinming Zhu   +6 more
doaj   +1 more source

Harnessing Outer Space for Improved Electrocaloric Cooling

Advanced Functional Materials, EarlyView.
A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo, Hyung Rae Kim, Joo Ho Yun, Hyunkyu Kwak, Do Hyeon Kim, Se‐Yeon Heo, Rujun Ma, Gil Ju Lee, Young Min Song   +8 more
wiley   +1 more source

Dielectric Engineering With the Environment Material in 2-D Semiconductor Devices

IEEE Journal of the Electron Devices Society, 2018
A theoretical study that highlights the dielectric constant modulation effect of the surrounding environment material (EM) on 2-D semiconductor devices is presented. With graphene nanoribbon as the vehicle, it is shown that the dielectric constant of the
Hao Wang, Sheng Chang, Jin He, Qijun Huang, Feng Liu   +4 more
doaj   +1 more source

A compound figure of merit for photonic applications of metal nanocomposites

, 2006
Selecting nanocomposites for photonic switching applications requires optimizing their thermal, nonlinear and two-photon absorption characteristics. We simplify this step by defining a compound figure of merit (FOM_{C}) for nanocomposites of noble metals
Hare Krishna, Hernando Garcia, Kang J., Ramki Kalyanaraman   +3 more
core   +1 more source

Stable and Dendrite‐Free Zinc Metal Anodes Via Interface Nanoarchitectonics for Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
This review explores Zn anode challenges in aqueous ZIBs, including dendrites, corrosion, and side reactions, and discusses strategies for improvement through Zn anode, electrolyte, and separator modifications to enhance stability and efficiency. Abstract Aqueous rechargeable zinc‐ion batteries (ZIBs) are emerging as promising candidates for next ...
Pragati A. Shinde, Nilesh R. Chodankar, Lok Kumar Shrestha, Amal Al Ghaferi, Ebrahim Alhajri, Katsuhiko Ariga   +5 more
wiley   +1 more source

Dielectric Properties and AC Conductivity Measurements of Amorphous Ge15Se85 Glass [PDF]

Журнал нано- та електронної фізики, 2013
In the present study, investigations of dielectric parameters viz dielectric constant (), dielectric loss () and AC conductivity measurements have been made for bulk chalcogenide Ge15Se85 glass in the frequency range 10 to 500 kHz within the ...
Balbir Singh Patial, Neha, Jai Prakash, Rajesh Kumar, S.K. Tripathi, Nagesh Thakur   +5 more
doaj  

Photonic Band Gaps of Three-Dimensional Face-Centered Cubic Lattices

, 1998
We show that the photonic analogue of the Korringa-Kohn-Rostocker method is a viable alternative to the plane-wave method to analyze the spectrum of electromagnetic waves in a three-dimensional periodic dielectric lattice.
, Alexander Moroz, Ashcroft N W, Astratov V N, Beeby J L, Bykov V P, Charles Sommers, Eastham M S P, Korringa J, Koster G F, Maxwell-Garnett J C, Moroz A, Moroz A, Moroz A, Ohtaka K, Ohtaka K, Sakoda K, Skriganov M M, Sprik R, Suzuki T, Suzuki T, Sözüer H S, Tip A, Vlasov Yu A, Vos W L, Vos W L, Yannopapas V   +26 more
core   +1 more source

Optical Control of the Thermal Conductivity in BaTiO3

Advanced Functional Materials, EarlyView.
Light‐driven manipulation of thermal conductivity in archetypal ferroelectric, BaTiO3, offers a novel and effective approach for the dynamical control of the heat flux, with potential applications in thermal management and phonon‐based logic. Abstract Achieving dynamic control over thermal conductivity remains a formidable challenge in condensed matter
Claudio Cazorla, Carlos Escorihuela‐Sayalero, Jesús Carrete, Jorge Íñiguez‐González, Riccardo Rurali   +4 more
wiley   +1 more source

Spectroelectrochemical Determination of Förster Radii for Triplet‐Polaron Quenching in Phosphorescent Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Phosphorescent OLEDs suffer from efficiency roll‐off due to triplet‐polaron quenching (TPQ). This study demonstrates for a large set of host‐guest combinations a spectroelectrochemical method to measure the absorption of charged molecules, enabling determining TPQ Förster radii (2.5–4 nm) from the spectral overlap.
Stan E. A. Jaspars, Hiroki Tomita, Clint van Hoesel, Nicolas Daub, René A.J. Janssen, Reinder Coehoorn   +5 more
wiley   +1 more source

Terahertz‐Driven Ultrafast Dynamics of Rare‐Earth Nickelates by Controlling Only the Charge Degree of Freedom

Advanced Functional Materials, EarlyView.
The THz drive of the Mott insulating state of a rare‐earth nickelate induces instantaneous insulator‐metal transition via quantum tunneling of valence electrons across the bandgap. This transition is pure electronic and highly non‐thermal, which may find its applications in ultrafast opto‐electronics with enhanced performance and minimal device size ...
Gulloo Lal Prajapati, Sergey Kovalev, Igor Ilyakov, Atiqa Arshad, Gaurav Dubey, Ketan S. Navale, Dhanvir Singh Rana, Jan‐Christoph Deinert   +7 more
wiley   +1 more source