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Colloidal Atomic Layer Deposition on Nanocrystals Using Ligand-Modified Precursors

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Thin films of oxide materials are widely used for various types of applications. The selection of an appropriate deposition method depends on the aimed material and application. We review here a high vacuum chemical vapour deposition (HV-CVD) method, which ...

Elsevier2013

Thermal Boundary Conductance between metals and dielectrics

Christian Monachon

This work consists in an experimental study of the main parameters governing the transport of heat across an interface between two solids, when it is dominated by phonons. The main experimental tool used is Time-Domain ThermoReflectance (TDTR), which is an ...

EPFL2013

Electrochromic nanocomposite films

Raffaella Buonsanti, Anna Llordes Gil

The present invention provides an electrochromic nanocomposite film. In an exemplary embodiment, the electrochromic nanocomposite film, includes (1) a solid matrix of oxide based material and (2) transparent conducting oxide (TCO) nanostructures embedded i ...

2013

Formation Mechanisms and Structural Properties of Aluminium-Chromium Based Oxynitride Thin Films Synthesized by Physical Vapor Deposition

Hossein Najafi

Oxynitride thin films, a novel class of mixed anionic solid structures, have gained an intense interest during recent years related to the unique interplay of oxygen (O) and nitrogen (N) with metals in the material structure. This matter can result in spec ...

EPFL2012

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Zinc oxides (ZnO) nanowires were successfully deposited on plastic low-power micro-hotplates using the thermal oxidation technique. Metallic zinc layer was deposited on the sensing transducer by RF magnetron sputtering and then oxidized in a controlled atm ...

2012

Mild reactive stripping of coordinating ligands from nanocrystal surfaces using Meerwein's salt

Raffaella Buonsanti, Anna Llordes Gil

Native coordinating ligands acquired during the chem. synthesis of colloidal nanocrystals are optimized primarily for their ability to exert control over nanocrystal size, compn., morphol., and dispersibility, and not necessarily for their final applicatio ...

2012

On the Morphology and Interfaces of Nanostructured Hematite Photoanodes for Solar-Driven Water Splitting

Florian Le Formal

A sustainable route to store the energy provided by the Sun, is to directly convert sunlight into molecular hydrogen using a semiconductor performing water photolysis. Hematite (α-Fe2O3) is promising for this application due to its ample abundance, chemica ...

EPFL2011

The authors report the prepn. of soln.-derived metal oxide nanocomposite films by combining polyoxometalates (POMs) and colloidal oxide nanocrystals. Polyniobates and vanadates were combined with Sn-doped In2O3 (ITO) nanocrystals leading to Nb2O5-ITO, V2O5 ...

2011

Polymer Brush Guided Formation of Thin Gold and Palladium/Gold Bimetallic Films

Harm-Anton Klok, Dusko Paripovic

This manuscript reports a new strategy to guide the chemical solution deposition of thin, microstructured metal films. The proposed strategy is based on the use of poly(2-(methacryloyloxy)ethyl ammonium chloride) (PMETAC) brushes grown via surface-initiate ...

2011

Aluminum rich oxynitride thin films were prepared using pulsed direct current (DC) magnetron sputtering from an Al95.5Cr2.5Si2 (at.%) target. Two series of films were deposited at 400 degrees C and 650 degrees C by changing the O-2/(O-2 + N-2) ratio in the ...

2010