scholarly journals Liquid Phase Morphology Control of ZnO Nanowires, Ellipse Particles, Hexagonal Rods, and Particle in Aqueous Solutions

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Yoshitake Masuda ◽  
Naoto Kinoshita ◽  
Kunihito Koumoto
Keyword(s):  
Liquid Phase ◽  
Morphology Control ◽  
Growth Conditions ◽  
Zno Nanowires ◽  
Phase Morphology ◽  
Growth Speed ◽  
High Mechanical Strength ◽  
Precise Adjustment ◽  
High Flexibility ◽  
Nano Wires

Liquid phase morphology control of ZnO crystals was realized with simple aqueous solution system. ZnO nanowires were successfully fabricated at 50∘C. They were over 50 μm in length and about 100 nm in width. Aspect ratio was estimated to be over 500. They had no branches and were obtained without aggregations. Curved nano-wires clearly indicated high flexibility and high mechanical strength. Additionally, ellipse particles, hexagonal rods and particles were fabricated in the solutions. Morphology, crystal growth speed, and preferred growth faces were well-controlled by precise adjustment of growth conditions.

TEM study of very thin InGaAsP layers grown by liquid-phase epitaxy

1990 ◽  
Vol 48 (4) ◽  
pp. 672-673
Author(s):  
N.A. Bert ◽  
A.O. Kosogov
Keyword(s):  
Liquid Phase ◽  
Liquid Phase Epitaxy ◽  
Chemical Vapor ◽  
Growth Conditions ◽  
Dark Field ◽  
Organic Chemical ◽  
Simple Liquid ◽  
Cross Sectional ◽  
Conventional Procedure ◽  
Double Heterostructures

The very thin (<100 Å) InGaAsP layers were grown not only by molecular beam epitaxy and metal-organic chemical vapor deposition but recently also by simple liquid phase epitaxy (LPE) technique. Characterization of their thickness, interfase abruptness and lattice defects is important and requires TEM methods to be used.The samples were InGaAsP/InGaP double heterostructures grown on (111)A GaAs substrate. The exact growth conditions are described in Ref.1. The salient points are that the quarternary layers were being grown at 750°C during a fast movement of substrate and a convection caused in the melt by that movement was eliminated. TEM cross-section specimens were prepared by means of conventional procedure. The studies were conducted in EM 420T and JEM 4000EX instruments.The (200) dark-field cross-sectional imaging is the most appropriate TEM technique to distinguish between individual layers in 111-v semiconductor heterostructures.

scholarly journals Morphology control of copper hydroxide based nanostructures in liquid phase synthesis

2021 ◽  
pp. 126225
Author(s):  
Rutuja Bhusari ◽  
Jean-Sébastien Thomann ◽  
Jérôme Guillot ◽  
Renaud Leturcq
Keyword(s):  
Liquid Phase ◽  
Morphology Control ◽  
Copper Hydroxide ◽  
Phase Synthesis

Size, shape, and ordering of SiGe/Si(001) islands grown by means of liquid phase epitaxy under far-nonequilibrium growth conditions

2005 ◽  
Vol 86 (14) ◽  
pp. 142101 ◽  
Author(s):  
M. Hanke ◽  
T. Boeck ◽  
A.-K. Gerlitzke ◽  
F. Syrowatka ◽  
F. Heyroth ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Liquid Phase Epitaxy ◽  
Growth Conditions ◽  
Nonequilibrium Growth

Gap Fill Morphology Control in Liquid-phase Crystal Growth by Use of a Magnetic Field

2011 ◽  
Vol 37 (4) ◽  
pp. 356-360
Author(s):  
Hitoshi Kato ◽  
Shigehiro Ushikubo ◽  
Masaaki Yokota ◽  
Norihito Doki ◽  
Kaoru Ogawa ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Crystal Growth ◽  
Liquid Phase ◽  
Morphology Control ◽  
Phase Crystal

scholarly journals Bacterial growth laws reflect the evolutionary importance of energy efficiency

2014 ◽  
Vol 112 (2) ◽  
pp. 406-411 ◽  
Author(s):  
Arijit Maitra ◽  
Ken A. Dill
Keyword(s):  
Energy Efficiency ◽  
Bacterial Growth ◽  
Growth Conditions ◽  
High Energy ◽  
Fast Growth ◽  
Growth Speed ◽  
Energy Costs ◽  
Extensive Literature ◽  
E Coli ◽  
Growth Laws

We are interested in the balance of energy and protein synthesis in bacterial growth. How has evolution optimized this balance? We describe an analytical model that leverages extensive literature data on growth laws to infer the underlying fitness landscape and to draw inferences about what evolution has optimized inEscherichia coli. IsE. colioptimized for growth speed, energy efficiency, or some other property? Experimental data show that at its replication speed limit,E. coliproduces about four mass equivalents of nonribosomal proteins for every mass equivalent of ribosomes. This ratio can be explained if the cell’s fitness function is the the energy efficiency of cells under fast growth conditions, indicating a tradeoff between the high energy costs of ribosomes under fast growth and the high energy costs of turning over nonribosomal proteins under slow growth. This model gives insight into some of the complex nonlinear relationships between energy utilization and ribosomal and nonribosomal production as a function of cell growth conditions.

Low-Temperature Diffusivity of Hydrogen in Different Silicon Substrates

1995 ◽  
Vol 378 ◽  
Author(s):  
Xiaojun Deng ◽  
Bhushan L. Sopori
Keyword(s):  
Low Temperature ◽  
Carbon Content ◽  
Oxygen Concentration ◽  
Hydrogen Diffusion ◽  
Growth Conditions ◽  
Growth Speed ◽  
Silicon Substrates ◽  
Vacancy Mechanism ◽  
Speed Increase

AbstractThe diffusivity of deuterium (D) at 250°C was determined in silicon samples grown by different techniques. It is found that the diffusivity increases with the growth speed, increase in carbon content and a decrease in oxygen concentration of the substrate. These growth conditions correlate well with the concentration of vacancy-type defects in the as-grown state. Hence, we conclude that a vacancy mechanism is responsible for low-temperature hydrogen diffusion in silicon. The highest diffusivity for hydrogen, calculated from these data, was found to be 3 × 10−7 cm2/s.

scholarly journals Microfluidic characterization of macromolecular liquid–liquid phase separation

Lab on a Chip ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 4225-4234
Author(s):  
Anne Bremer ◽  
Tanja Mittag ◽  
Michael Heymann
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Precise Determination ◽  
Phase Morphology ◽  
Liquid Phase Separation ◽  
Dense Phase ◽  
Liquid Liquid Phase Separation

The microfluidic phase chip allows precise determination of the saturation concentrations of biomolecules that undergo liquid–liquid phase separation while also monitoring the dense-phase morphology.

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