Two-dimensional growth mode of thiolate-protected gold nanoclusters Au28+4n(SR)20+2n (n = 0–8): compared with their one-dimensional growth mode

Nanoscale ◽  
2020 ◽  
Vol 12 (40) ◽  
pp. 20677-20683
Author(s):  
Pengye Liu ◽  
Wenhua Han ◽  
Mengke Zheng ◽  
Wen Wu Xu
Keyword(s):  
Gold Nanoclusters ◽  
Growth Mode ◽  
Two Dimensional ◽  
One Dimensional ◽  
Atomic Structures ◽  
Dimensional Growth

In this paper, six new atomic structures of thiolate-protected gold nanoclusters, i.e. Au32(SR)20, Au40(SR)26, Au48(SR)30, two Au56(SR)34, and Au60(SR)36, are predicted.

GaSb layers with low defect density deposited on (001) GaAs substrate in two-dimensional growth mode using molecular beam epitaxy

2019 ◽  
Vol 19 (4) ◽  
pp. 542-547
Author(s):  
Agata Jasik ◽  
Iwona Sankowska ◽  
Andrzej Wawro ◽  
Jacek Ratajczak ◽  
Dariusz Smoczyński ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Gaas Substrate ◽  
Molecular Beam ◽  
Defect Density ◽  
Growth Mode ◽  
Two Dimensional ◽  
Dimensional Growth

Kinetics of the C49 TO C54 Phase Transformation in TiSi2 thin Films on Deep-Sub-Micron Lines

1995 ◽  
Vol 402 ◽  
Author(s):  
J. A. Kittl ◽  
D. A. Prinslow ◽  
P. P Apte ◽  
M. F. Pas
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Phase Transformation ◽  
Full Time ◽  
Two Dimensional ◽  
One Dimensional ◽  
Grain Sizes ◽  
Nucleation Sites ◽  
Dimensional Growth ◽  
Kinetics Of

AbstractThe kinetics of the TiSi2 C49 to C54 phase transformation in thin films on patterned deepsub- micron lines, were studied to obtain the full time, temperature and linewidth dependence of the fraction transformed during rapid thermal annealing. A Johnson-Mehl-Avrami kinetic analysis was performed, obtaining Avrami exponents of 0.8±0.2 for all sub-micron lines and 1. 9±0.2 for a 40 μm side square structure, indicating heterogeneous nucleation followed by one dimensional growth for the narrow lines, and two dimensional growth for the square structure. The activation energy, of 3.9 eV, was independent of linewidth in the sub-micron range. Transformation times increased dramatically for decreasing linewidth, as the linewidth approached the grain size of the starting C49 phase. A kinetic model based on the density of nucleation sites as a function of linewidth and C49 grain size is proposed and shown to fit the data, for samples with two different C49 grain sizes.

Step Instability in Sublimation Epitaxy on Low Off-Axis 6H-SiC

2013 ◽  
Vol 740-742 ◽  
pp. 201-204 ◽  
Author(s):  
Kanaparin Ariyawong ◽  
Valdas Jokubavicius ◽  
Rickard Liljedahl ◽  
Mikael Syväjärvi
Keyword(s):  
Growth Temperature ◽  
Growth Mode ◽  
Mode Competition ◽  
Two Dimensional ◽  
Step Flow ◽  
Surface Irregularities ◽  
Dimensional Growth ◽  
The Mean ◽  
Homoepitaxial Layers ◽  
Step Flow Growth

The growth of homoepitaxial layers on off-oriented 6H-SiC substrates proceeds via step flow growth. Such epilayers can exhibit irregularities like step bunching, splicing or crossover of steps. The effects of the substrate off-orientation and growth temperature show an influence on formation of surface irregularities. The mean features seem to be given by the growth mode competition of two-dimensional growth to the step-flow growth.

Homoepitaxial growth of ZnO by metalorganic vapor phase epitaxy in two-dimensional growth mode

2007 ◽  
Vol 308 (1) ◽  
pp. 170-175 ◽  
Author(s):  
S. Heinze ◽  
A. Krtschil ◽  
J. Bläsing ◽  
T. Hempel ◽  
P. Veit ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Metalorganic Vapor Phase Epitaxy ◽  
Vapor Phase Epitaxy ◽  
Growth Mode ◽  
Two Dimensional ◽  
Homoepitaxial Growth ◽  
Dimensional Growth

scholarly journals Switching adsorption and growth behavior of ultrathin [C2C1Im][OTf] films on Au(111) by Pd deposition

2016 ◽  
Vol 18 (36) ◽  
pp. 25143-25150 ◽  
Author(s):  
F. Rietzler ◽  
B. May ◽  
H.-P. Steinrück ◽  
F. Maier
Keyword(s):  
Ionic Liquid ◽  
Photoelectron Spectroscopy ◽  
Three Dimensional ◽  
Liquid Films ◽  
Growth Behavior ◽  
Growth Mode ◽  
Two Dimensional ◽  
X Ray ◽  
Dimensional Growth

In vacuo deposition of ultrathin ionic liquid films combined with angle-resolved X-ray photoelectron spectroscopy demonstrates that the initial three-dimensional growth mode of [C2C1Im][OTf] deposited onto the bare Au(111) surface can be switched to two-dimensional growth by adding submonolayer amounts of Pd.

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