Straight single-crystalline germanium nanowires and their patterns grown on sol–gel prepared gold/silica substrates

2005 ◽  
Vol 134 (4) ◽  
pp. 251-255 ◽  
Author(s):  
Zheng Wei Pan ◽  
Sheng Dai ◽  
Douglas H. Lowndes
Keyword(s):  
Sol Gel ◽  
Single Crystalline ◽  
Germanium Nanowires ◽  
Crystalline Germanium ◽  
Silica Substrates

Low temperature growth of single crystalline germanium nanowires

2010 ◽  
Vol 45 (2) ◽  
pp. 153-158 ◽  
Author(s):  
L.Z. Pei ◽  
H.S. Zhao ◽  
W. Tan ◽  
H.Y. Yu ◽  
Y.W. Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Temperature Growth ◽  
Single Crystalline ◽  
Germanium Nanowires ◽  
Low Temperature Growth ◽  
Crystalline Germanium

Room-Temperature Epitaxial Electrodeposition of Single-Crystalline Germanium Nanowires at the Wafer Scale from an Aqueous Solution

Nano Letters ◽  
2014 ◽  
Vol 14 (2) ◽  
pp. 847-852 ◽  
Author(s):  
Eli Fahrenkrug ◽  
Junsi Gu ◽  
Sunyeol Jeon ◽  
P. Alexander Veneman ◽  
Rachel S. Goldman ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Room Temperature ◽  
Single Crystalline ◽  
Germanium Nanowires ◽  
Wafer Scale ◽  
Crystalline Germanium ◽  
Epitaxial Electrodeposition

Preparation of Macroprous C12A7 Mayenite Monoliths via a Sol-Gel Process with Nitrates as Precursors

2018 ◽  
Vol 768 ◽  
pp. 211-217 ◽  
Author(s):  
Rui Wang ◽  
Yu Kun Sun ◽  
Bao Jia Qi Jiang ◽  
Hui Yang ◽  
Xing Zhong Guo
Keyword(s):  
Heat Treatment ◽  
Phase Separation ◽  
Binary System ◽  
Propylene Oxide ◽  
Crystalline Phase ◽  
Sol Gel ◽  
Single Crystalline ◽  
Sol Gel Process

Macroporous Ca12Al14O33(C12A7) mayenite monoliths have been successfully prepared via a sol-gel process in the presence of propylene oxide (PO) and poly (ethyleneoxide) (PEO). Gelation of CaO-Al2O3binary system with nitrates salts as additional precursors is accelerated by PO as an acid scavenger, while PEO works as a phase separation inducer to mediate the phase separation of the system. Appropriate PO and PEO amounts allow the formation of monolithic xerogel with interconnected macropores and co-continuous skeletons. The resultant dried gels are amorphous and the single crystalline phase Ca12Al14O33mayenite forms after heat-treatment at 1100 °C in air, while the macrostructure is preserved with a porosity as high as 78% and smoother and denser skeletons.

Preparation of aluminosilicate crystalline coatings from sol-gel derived alumina films deposited on silicon/silica substrates

2005 ◽  
Vol 40 (1-2) ◽  
pp. 114-124 ◽  
Author(s):  
E. Gutmann ◽  
A. A. Levin ◽  
I. Pommrich ◽  
D. C. Meyer
Keyword(s):  
Sol Gel ◽  
Alumina Films ◽  
Silica Substrates

Single Crystalline Germanium-Lead Formed by Laser-Induced Epitaxy

2016 ◽  
Vol 5 (6) ◽  
pp. P353-P360 ◽  
Author(s):  
Qian Zhou ◽  
Edwin Bin Leong Ong ◽  
Sin Leng Lim ◽  
Saumitra Vajandar ◽  
Thomas Osipowicz ◽  
...  
Keyword(s):  
Single Crystalline ◽  
Crystalline Germanium

Numerical Simulation and Prediction of Surface Heterogeneity in Diamond Turning of Single-Crystalline Germanium

2007 ◽  
Vol 329 ◽  
pp. 397-402
Author(s):  
Ji Wang Yan ◽  
Yu Feng Fan ◽  
Nobuhito Yoshihara ◽  
Tsunemoto Kuriyagawa ◽  
Shoji Yokoyama
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Surface Heterogeneity ◽  
Diamond Turning ◽  
Tool Geometry ◽  
Single Crystalline ◽  
Machining Conditions ◽  
Boundary Change ◽  
Systems Simulation ◽  
Crystalline Germanium

This paper deals with the mechanism of surface heterogeneity due to crystallographic anisotropy effects in diamond turning of single-crystalline germanium. A microplasticity-based numerical simulation model was proposed, in which the effects of tool geometry and machining conditions can be involved. Two coefficients were introduced to compensate the Schmid factors of two different types of symmetrical slip systems. Simulation of ductile machinability was conducted on two crystallographic planes (100) and (111), and the simulation results were consistent with the experimental results. It was indicated that the simulation model can be used to predict the brittle-ductile boundary change with machining conditions and crystal orientations of germanium.

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