Photoluminescence and Growth Kinetics of High-Quality Indium Arsenide and InAs-Based Core/Shell Colloidal Nanocrystals Synthesized Using Arsine (AsH3) Generated via Zinc Arsenide as the Arsenic Source

2010 ◽  
Vol 22 (4) ◽  
pp. 1579-1584 ◽  
Author(s):  
Jianbing Zhang ◽  
Daoli Zhang
2009 ◽  
Vol 131 (8) ◽  
pp. 084712 ◽  
Author(s):  
D. Lourençoni Ferreira ◽  
F. Oliveira Silva ◽  
L. Cristina de Souza Viol ◽  
P. Licínio ◽  
M. Valadares ◽  
...  

2020 ◽  
Vol 124 (39) ◽  
pp. 21717-21721
Author(s):  
Cyrille Hamon ◽  
Doru Constantin

2005 ◽  
Vol 98 (4) ◽  
pp. 044105 ◽  
Author(s):  
Gang Liu ◽  
Xiao-hui Wang ◽  
Y. Lin ◽  
L.-T. Li ◽  
Ce-Wen Nan

2007 ◽  
Vol 121-123 ◽  
pp. 139-144
Author(s):  
B.F. Pan ◽  
R. He ◽  
F. Gao ◽  
L.M. Ao ◽  
H.Y. Tian ◽  
...  

A safe, common, and low-cost method was proven to be effective for the synthesis of high quality CdSe nanocrystals. Cd(Ac)2 and Lauric acid were found to be the excellent cadmium precursor and solvent/ligand, respectively. The size and shape of CdSe nanocrystals synthesized by this route can be varied in a controllable manner in a broad size range, from about 2.0 nm to 4 nm. The growth kinetics of CdSe nanocrystals nucleated from TOPSe and cadmium acetate was also investigated in Lauric Acid. The rate constant for steady-state CdSe growth was found to be 4.15×10─8 m s─1 at 260°C.


2013 ◽  
Vol 740-742 ◽  
pp. 69-72 ◽  
Author(s):  
E.N. Mokhov ◽  
A.D. Roenkov ◽  
A.S. Segal

The growth kinetics of SiC crystals doped with Al and Ga impurities and grown by the sublimation sandwich method at a small spacing between the source and the seed (<1 mm) has been studied. Dependence of an Al-doped SiC crystals growth rate on the clearance is shown to be non-monotonic and exhibits maximum at the clearance about of 100-300 μm. Such dependence is also observed for growth of pure and Ga-doped SiC crystals but only on (0001)Si face. The derived dependencies suggest that there are some considerable kinetic limitations of the SiC growth rate. High quality SiC crystals with such high concentration of the Al impurity as 2x1021 cm-3 were grown.


RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38454-38462 ◽  
Author(s):  
Salvatore Cosentino ◽  
Giacomo Torrisi ◽  
Rosario Raciti ◽  
Massimo Zimbone ◽  
Isodiana Crupi ◽  
...  

Representation of growth kinetics mechanisms that strongly control synthesis and final dimension of colloidal nanocrystals.


Author(s):  
Shiro Fujishiro ◽  
Harold L. Gegel

Ordered-alpha titanium alloys having a DO19 type structure have good potential for high temperature (600°C) applications, due to the thermal stability of the ordered phase and the inherent resistance to recrystallization of these alloys. Five different Ti-Al-Ga alloys consisting of equal atomic percents of aluminum and gallium solute additions up to the stoichiometric composition, Ti3(Al, Ga), were used to study the growth kinetics of the ordered phase and the nature of its interface.The alloys were homogenized in the beta region in a vacuum of about 5×10-7 torr, furnace cooled; reheated in air to 50°C below the alpha transus for hot working. The alloys were subsequently acid cleaned, annealed in vacuo, and cold rolled to about. 050 inch prior to additional homogenization


1998 ◽  
Vol 536 ◽  
Author(s):  
E. M. Wong ◽  
J. E. Bonevich ◽  
P. C. Searson

AbstractColloidal chemistry techniques were used to synthesize ZnO particles in the nanometer size regime. The particle aging kinetics were determined by monitoring the optical band edge absorption and using the effective mass model to approximate the particle size as a function of time. We show that the growth kinetics of the ZnO particles follow the Lifshitz, Slyozov, Wagner theory for Ostwald ripening. In this model, the higher curvature and hence chemical potential of smaller particles provides a driving force for dissolution. The larger particles continue to grow by diffusion limited transport of species dissolved in solution. Thin films were fabricated by constant current electrophoretic deposition (EPD) of the ZnO quantum particles from these colloidal suspensions. All the films exhibited a blue shift relative to the characteristic green emission associated with bulk ZnO. The optical characteristics of the particles in the colloidal suspensions were found to translate to the films.


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