scholarly journals Ultrawideband and high-efficient polarization conversion metasurface based on multi-resonant element and interference theory

2021 ◽  
Author(s):  
hang yu ◽  
Xiaoyu Wang ◽  
Jianxun Su ◽  
Meijun Qu ◽  
Qingxin Guo ◽  
...  
Keyword(s):  
Polarization Conversion ◽  
Interference Theory ◽  
High Efficient

scholarly journals Metallic metasurfaces for high efficient polarization conversion control in transmission mode

2017 ◽  
Vol 25 (20) ◽  
pp. 23597 ◽  
Author(s):  
Tong Li ◽  
Xiaobin Hu ◽  
Huamin Chen ◽  
Chen Zhao ◽  
Yun Xu ◽  
...  
Keyword(s):  
Transmission Mode ◽  
Polarization Conversion ◽  
High Efficient

Development and Construction of Domestic High-Efficient Small-Capacity Power Equipmen

Vestnik MEI ◽  
2018 ◽  
Vol 6 (6) ◽  
pp. 33-42
Author(s):  
Pavel V. Roslyakov ◽  
◽  
Bronislav G. Grisha ◽  
Igor L. Ionkin ◽  
Mikhail N. Zaichenko ◽  
...  
Keyword(s):  
High Efficient ◽  
Small Capacity

Ultrathin Carbon Nanosheets for Highly-efficient Capacitive K-ion and Zn-ion Storage

2020 ◽  
Author(s):  
Yamin Zhang ◽  
Zhongpu Wang ◽  
Deping Li ◽  
Qing Sun ◽  
Kangrong Lai ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Metal Ion ◽  
Rate Capability ◽  
Energy Storage Devices ◽  
Capacity Retention ◽  
Carbon Nanosheets ◽  
Storage Devices ◽  
High Efficient ◽  
Ion Storage

<p></p><p>Porous carbon has attracted extensive attentions as the electrode material for various energy storage devices considering its advantages like high theoretical capacitance/capacity, high conductivity, low cost and earth abundant inherence. However, there still exists some disadvantages limiting its further applications, such as the tedious fabrication process, limited metal-ion transport kinetics and undesired structure deformation at harsh electrochemical conditions. Herein, we report a facile strategy, with calcium gluconate firstly reported as the carbon source, to fabricate ultrathin porous carbon nanosheets. <a>The as-prepared Ca-900 electrode delivers excellent K-ion storage performance including high reversible capacity (430.7 mAh g<sup>-1</sup>), superior rate capability (154.8 mAh g<sup>-1</sup> at an ultrahigh current density of 5.0 A g<sup>-1</sup>) and ultra-stable long-term cycling stability (a high capacity retention ratio of ~81.2% after 4000 cycles at 1.0 A g<sup>-1</sup>). </a>Similarly, when being applied in Zn-ion capacitors, the Ca-900 electrode also exhibits an ultra-stable cycling performance with ~90.9% capacity retention after 4000 cycles at 1.0 A g<sup>-1</sup>, illuminating the applicable potentials. Moreover, the origin of the fast and smooth metal-ion storage is also revealed by carefully designed consecutive CV measurements. Overall, considering the facile preparation strategy, unique structure, application flexibility and in-depth mechanism investigations, this work will deepen the fundamental understandings and boost the commercialization of high-efficient energy storage devices like potassium-ion/sodium-ion batteries, zinc-ion batteries/capacitors and aluminum-ion batteries.</p><br><p></p>

Doped Metal Oxide Nanocrystals for Solution-Processed Hole Extraction Layers in High Efficient Organic Solar Cells

2018 ◽  
Author(s):  
Riva Alkarsifi ◽  
Florent Pourcin ◽  
Pavlo Perkhun ◽  
Mats Fahlman ◽  
Christine Videlot-Ackermann ◽  
...  
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
Organic Solar Cells ◽  
Solution Processed ◽  
High Efficient

Optimized design of high efficient voice coil actuator in deformable mirror

2020 ◽  
Vol 35 (11) ◽  
pp. 1110-1119
Author(s):  
Shuo CAO ◽  
◽  
Zhi-gao ZHANG ◽  
Zhi-yun ZHAO ◽  
Hu GU ◽  
...  
Keyword(s):  
Deformable Mirror ◽  
Optimized Design ◽  
High Efficient ◽  
Voice Coil Actuator
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