Tungsten-doped Ge2Sb2Te5 phase change material for high-speed optical switching devices

2020 ◽  
Vol 116 (13) ◽  
pp. 131901
Author(s):  
Pengfei Guo ◽  
Joshua A. Burrow ◽  
Gary A. Sevison ◽  
Heungdong Kwon ◽  
Christopher Perez ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Optical Switching ◽  
Optical Switching Devices ◽  
Change Material ◽  
Switching Devices

Rhenium doped Sb2Te phase change material with ultrahigh thermal stability and high speed

2021 ◽  
Vol 863 ◽  
pp. 158583
Author(s):  
Junshi Zhao ◽  
Qi Liang ◽  
Ying Chen ◽  
Sifan Zhang ◽  
Zhitang Song ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Change Material

Reversible optical switching of highly confined phonon–polaritons with an ultrathin phase-change material

2016 ◽  
Vol 15 (8) ◽  
pp. 870-875 ◽  
Author(s):  
Peining Li ◽  
Xiaosheng Yang ◽  
Tobias W. W. Maß ◽  
Julian Hanss ◽  
Martin Lewin ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Optical Switching ◽  
Phonon Polaritons ◽  
Change Material

Using High Speed Phase Change Material for ${\rm DVD}+{\rm RW}$ 2.4x Dual Layer

2007 ◽  
Vol 43 (2) ◽  
pp. 859-860 ◽  
Author(s):  
Kuan-Lan Fang ◽  
Pang-Chi Liu ◽  
Shih-Hsien Ma ◽  
Han-Feng Chang ◽  
Don-Yau Chiang
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Change Material

scholarly journals Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tatsuya Takahashi ◽  
Hiroaki Koide ◽  
Hiroki Sakai ◽  
Daisuke Ajito ◽  
Ade Kurniawan ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Storage Capacity ◽  
Heat Storage ◽  
Catalyst Support ◽  
Exothermic Reaction ◽  
Thermal Control ◽  
Ni Catalyst ◽  
Change Material

AbstractCO2 methanation is a promising technology to enable the use of CO2 as a resource. Thermal control of CO2 methanation, which is a highly active exothermic reaction, is important to avoid thermal runaway and subsequent degradation of the catalyst. Using the heat storage capacity of a phase change material (PCM) for thermal control of the reaction is a novel passive approach. In this study a novel structure was developed, wherein catalysts were directly loaded onto a micro-encapsulated PCM (MEPCM). The MEPCM was prepared in three steps consisting of a boehmite treatment, precipitation treatment, and heat oxidation treatment, and an impregnation process was adopted to prepare a Ni catalyst. The catalyst-loaded MEPCM did not show any breakage or deformation of the capsule or a decrease in the heat storage capacity after the impregnation treatment. MEPCM demonstrated a higher potential as an alternative catalyst support in CO2 methanation than the commercially available α-Al2O3 particle. In addition, the heat storage capacity of the catalyst-loaded MEPCM suppressed the temperature rise of the catalyst bed at a high heat absorption rate (2.5 MW m−3). In conclusion, the catalyst-loaded MEPCM is a high-speed, high-precision thermal control device because of its high-density energy storage and resolution of a spatial gap between the catalyst and cooling devices. This novel concept has the potential to overcome the technical challenges faced by efficiency enhancement of industrial chemical reactions.

Phase Change Material Cooling for Wide Band-Gap Switching Devices

2021 ◽  
Author(s):  
Taosha Jiang ◽  
Xiaoqing Song ◽  
Utkarsh Raheja ◽  
Pietro Cairoli
Keyword(s):  
Phase Change ◽  
Band Gap ◽  
Phase Change Material ◽  
Wide Band ◽  
Wide Band Gap ◽  
Change Material ◽  
Switching Devices

scholarly journals Light-induced optical switching in an asymmetric metal-dielectric microcavity with phase-change material

2019 ◽  
Vol 126 (6) ◽  
pp. 64003
Author(s):  
R. Thomas ◽  
A. A. Chabanov ◽  
I. Vitebskiy ◽  
T. Kottos
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Optical Switching ◽  
Change Material

Conformal Coating of a Phase Change Material on Ordered Plasmonic Nanorod Arrays for Broadband All-Optical Switching

ACS Nano ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. 693-701 ◽  
Author(s):  
Peijun Guo ◽  
Matthew S. Weimer ◽  
Jonathan D. Emery ◽  
Benjamin T. Diroll ◽  
Xinqi Chen ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Optical Switching ◽  
Nanorod Arrays ◽  
Conformal Coating ◽  
All Optical ◽  
Change Material ◽  
All Optical Switching

Phase change material W0.04(Sb4Te)0.96 for application in high-speed phase change memory

2014 ◽  
Vol 594 ◽  
pp. 82-86 ◽  
Author(s):  
Kun Ren ◽  
Feng Rao ◽  
Zhitang Song ◽  
Shilong Lu ◽  
Cheng Peng ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Phase Change Memory ◽  
Change Material ◽  
Change Memory
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