Results 71 to 80 of about 309,738 (293)

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

Advanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung, Jungwoo Shin, Qiujie Zhao, Minjee Kang, Christopher Evans, Cecilia Leal, Paul V. Braun, David G. Cahill   +7 more
wiley   +1 more source

High Frequency Plasma Generators for Ion Thrusters [PDF]

The results of a one year program to experimentally adapt two new types of high frequency plasma generators to Argon ion thrusters and to analytically study a third high frequency source concept are presented.
Divergilio, W. F., Fosnight, V. V., Goede, H.   +2 more
core   +1 more source

Unintentional boron incorporation in AlGaN layers grown by plasma-assisted MBE using highly efficient nitrogen RF plasma-sources [PDF]

, 2017
Plasma-assisted molecular beam epitaxy (PA-MBE) is now widely used for the growth of group III-nitrides. Many years ago it became clear that during PA-MBE there is unintentional doping of GaN with boron (B) due to decomposition of the pyrolytic boron ...
C.T. Foxon, Cordier, Gunning, Kim, McSkimming, McSkimming, Moldovan, Novikov, Novikov, Novikov, Novikov, Novikov, S.V. Novikov   +12 more
core   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Laser ion source for heavy ion inertial fusion

Matter and Radiation at Extremes, 2018
The proposed heavy ion inertial fusion (HIF) scenarios require ampere class low charge state ion beams of heavy species. The laser ion source (LIS) is recognized as one of the promising candidates of ion beam providers, since it can deliver high ...
Masahiro Okamura
doaj   +1 more source

Ion funnel quadrupole time of Flight mass spectrometry: optimization for achieving all ion MS/MS and pseudo MSn [PDF]

, 2013
An attempt has been made to study and understand Ion funnel technology for improved detection and measurement capabilities of ions originating from small molecules.
Marwah, Ashok, Marwah, Padma
core   +2 more sources

Synergistic Compatibilization of CsPbBr3 Perovskites and HfO2 Nanocrystals for Hybrid Sensitized Nanoscintillators

Advanced Functional Materials, EarlyView.
Lead halide perovskite nanocrystals are promising scintillators but suffer from reabsorption losses and limited compatibility with high‐Z additives. Hybridization of CsPbBr3 nanocrystals with PbBr2‐passivated HfO2 nanoparticle sensitizers, achieved during or after synthesis, produces stable composites with maintained optical quality, improved ...
Francesco Bruni, Saptarshi Chakraborty, Andrea Fratelli, Abdessamad El Adel, Jordi Llusar, Francesco Carulli, Matteo L. Zaffalon, Chenger Wang, Vojtech Zabloudil, Etiennette Auffray, Francesco Meinardi, Leonardo Poletti, Laura Lazzarini, Daniela Manno, Anna Galli, Francesca Rossi, Ivan Infante, Sergio Brovelli   +17 more
wiley   +1 more source

RF ELECTROMAGNETIC FIELD ABSORPTION INSIDE HELICON ION SOURCE IN NONAXIAL MAGNETIC FIELD

East European Journal of Physics, 2015
The paper studies integral characteristics and one-dimensional distribution of RF power absorption in a helicon plasma with external magnetic field directed at an angle to a plasma plane. Two kinds of working gas heli and hydrogen are considered.
O. V. Alexenko, V. I. Miroshnichenko, V. I. Voznyi   +2 more
doaj  

Alkali Ion‐Incorporated HfO2 Dielectrics for Reconfigurable Neuromorphic Computing

Advanced Functional Materials, EarlyView.
This work presents an indium gallium zinc oxide (IGZO) transistor with an alkali cation‐integrated hafnium dioxide (HfO2) dielectric exhibiting synaptic behavior via ion retention. The solution‐based film fabrication strategy overcomes the limitations of atomic layer deposition (ALD) and precursor coating, enabling the control of synaptic retention ...
Seung Yeon Ki, In Cheol Kwak, Seonkwon Kim, Jihyun Kim, Dong Gue Roe, Se‐Jin Kim, Joohoon Kang, Jeong Ho Cho   +7 more
wiley   +1 more source

Development of plasma light monitoring system for high-power radio frequency negative ion source

He jishu
BackgroundNegative ion sources driven by radio frequency (RF) waves have become the preferred solution for future neutral beam injection systems.PurposeThis study aims to monitor the plasma discharge state of each exciter of a high power RF negative ion ...
LI Yufan, YANG Puqiong, WEI Jianglong, LIU Bo, PENG Xufeng, YANG Yuwen, LI Yuqian, XIE Yuanlai   +7 more
doaj   +1 more source