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Showing 1 to 10 of 10 for “"Volmer-Weber"”.
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Stress and structure evolution during Volmer-Weber growth of thin films
… simulation of thin film formation by the Volmer-Weber mechanism was developed to model the nucleation and growth of individual islands that impinge and coalesce to form a continuous film. By including a size-dependent lattice contraction in pre-coalescence islands, the simulation can be …
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Relationships between grain structure and stress in thin Volmer-Weber metallic films
In Volmer-Weber growth, islands that nucleate on the substrate surface impinge and coalesce into grains of a continuous film. During deposition of these polycrystalline films, the intrinsic stress for materials of sufficiently high mobility often evolves through three distinct stages, switching …
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Caracterização estrutural de pontos quânticos e filmes ultrafinos de CdTe/Si(111)
… mostrando que o crescimento segue o modo Volmer-Weber. As medidas de difração de raios-X, mostram que apesar do considerável descasamento do parâmetro de rede (19%) as ilhas crescem epitaxialmente, seguindo a direção cristalográfica [111] do substrato de silício. A analise cuidadosa das …
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Circuit and Integration Technologies for Molecular Electronics
… resulting in island formation through the Volmer-Weber growth mechanism. The resist is then stripped in a process known as liftoff, and the result is a wafer-scale substrate with well-defined regions for molecular interconnect. Before assembly, these structures conduct less than 110pA of …
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Localized adsorption of organic additives during copper electrodeposition
… copper growth proceeded according to the Volmer-Weber mechanism at $-$650 mV (SSE). Results from secondary ion mass spectrometry indicated that DiOC$\sb6$(3), or a derivative of it, was incorporated into the deposit during Cu electrodeposition. When the Cu deposits were dissolved …
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Metal deposition on TiO2(110) via thermal evaporation, photolysis and thermolysis: a combined FT-RAIRS and XPS study
… is proposed which resembles a combination of Volmer-Weber and Stranski-Krastanov types. The reactivity between O2 and pre-adsorbed CO appeared highest for the particles exhibiting the high Miller Index facets. Finally, FT-RAIRS allowed for the identification of a threshold Cu coverage, 4.48 …
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CdTe solar cells: growth phenomena and device performance
… pressure. Films were shown to form via the Volmer-Weber growth mode with films deposited under nitrogen showing well defined crystal facets. Inclusion of oxygen in the deposition ambient produced islands of a rounded morphology, reduced size and increased number density, whilst hydrogen was …
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Self-assembled strained nanostructures for light emission grown using molecular beam epitaxy
… Ge NWs phase segregated in the III-V matrix via Volmer-Weber growth mode emitting at 1200 nm. The second part of the thesis demonstrates the dislocation tolerance of compressively strained InP QDs grown on lattice-matched GaAs and lattice-mismatched Si substrate via Stranski-Krastanov growth mode …
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Wachstum und Charakterisierung des Tunnelmagnetowiderstand-Mehrschichtsystems Co-Al 2 O 3 -CoAl und das Studium spinfrustrierter Vortices in Ringstrukturen
… oxide film up to 1300 K was found. Co exhibits Volmer-Weber-type growth on both amorphous and teta-Al2O3. This is a consequence of the huge difference in the surface free energy of Co and that of the oxide. On teta-Al2O3, already after the deposition of 0.08 nm Co, clusters with a mean diameter …
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Diamond seeding process for the heterogenous integration of high quality diamond on semiconductors
… were found to develop three dimensionally via Volmer-Weber (VW) growth into large grains with low seeding density. The transition from VW conditions to van der Drift mode (mostly one dimensional) were found with increasing seeding density on the sample. Diamond crystal quality is found to …