Epitaxial Growth of Nanostructured Gold Films on Germanium via Galvanic Displacement

2010 ◽  
Vol 2 (12) ◽  
pp. 3515-3524 ◽  
Author(s):  
Sayed Y. Sayed ◽  
Jillian M. Buriak
Nano Letters ◽  
2009 ◽  
Vol 9 (6) ◽  
pp. 2384-2389 ◽  
Author(s):  
Yong Wang ◽  
Michael Becker ◽  
Li Wang ◽  
Jinquan Liu ◽  
Roland Scholz ◽  
...  

2012 ◽  
Vol 77 (9) ◽  
pp. 1239-1242
Author(s):  
Rastko Vasilic

The development of a new method for epitaxial growth of metals in solution by galvanic displacement of layers pre-deposited by underpotential deposition (UPD) was discussed and experimentally illustrated throughout the lecture. Cyclic voltammetry (CV) and scanning tunneling microscopy (STM) are employed to carry out and monitor a ?quasi-perfect?, two-dimensional growth of Ag on Au(111), Cu on Ag(111), and Cu on Au(111) by repetitive galvanic displacement of underpotentially deposited monolayers. A comparative study emphasizes the displacement stoichiometry as an efficient tool for thickness control during the deposition process and as a key parameter that affects the deposit morphology. The excellent quality of layers deposited by monolayer-restricted galvanic displacement is manifested by a steady UPD voltammetry and ascertained by a flat and uniform surface morphology maintained during the entire growth process.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Mirigliano ◽  
S. Radice ◽  
A. Falqui ◽  
A. Casu ◽  
F. Cavaliere ◽  
...  

AbstractWe report the observation of non-metallic electrical conduction, resistive switching, and a negative temperature coefficient of resistance in nanostructured gold films above the electrical percolation and in strong-coupling regime, from room down to cryogenic temperatures (24 K). Nanostructured continuous gold films are assembled by supersonic cluster beam deposition of Au aggregates formed in the gas phase. The structure of the cluster-assembled films is characterized by an extremely high density of randomly oriented crystalline nanodomains, separated by grain boundaries and with a large number of lattice defects. Our data indicates that space charge limited conduction and Coulomb blockade are at the origin of the anomalous electrical behavior. The high density of extended defects and grain boundaries causes the localization of conduction electrons over the entire investigated temperature range.


1991 ◽  
Vol 222 ◽  
Author(s):  
Kazuki Mae ◽  
Kentaro Kyuno ◽  
Takeo Kaneko ◽  
Ryoichi Yamamoto

ABSTRACTThe intensity oscillation of reflection high-energy electron diffraction (RHEED) during the autoepitaxy of Au on Au(001) and Ag on Ag(001) and during the heteroepitaxy of Au on Ag(001) and Ag on Au(001) were measured at 310 and 330 K. The morphologies of the growing surfaces are discussed in terms of the surface energies and the surface reconstruction. RHEED intensity oscillation during Au deposition on Ag(001) at 330 K rapidly decayed at the 6th period when reconstruction of the Au(001) surface appeared. Such a rapid decay was not observed at 310 K. On the other hand, the reconstruction entirely disappeared at the first minimum of the RHEED intensity oscillation in the case of Ag deposition on Au.


1982 ◽  
Vol 94 (1) ◽  
pp. 67-73 ◽  
Author(s):  
M.I. Bîrjega ◽  
N. Popescu-Pogrion ◽  
V. Topa
Keyword(s):  

Chem ◽  
2021 ◽  
Author(s):  
Zexi Liu ◽  
Jing Ai ◽  
Te Bai ◽  
Yuxi Fang ◽  
Kun Ding ◽  
...  

2008 ◽  
Vol 77 (19) ◽  
Author(s):  
Andreas Thoman ◽  
Andreas Kern ◽  
Hanspeter Helm ◽  
Markus Walther

Author(s):  
Taavi Repan ◽  
Christian Frydendahl ◽  
Sergey M. Novikov ◽  
Jonas Beermann ◽  
Sergey I. Bozhevolnyi ◽  
...  

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