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Ligand Mediated Surface Reconstruction of Photoluminescent CdTe Quantum Dots

A.J. Onnink2013-08-16Utrecht University Repository (Utrecht University)

Enhancement of photoluminescence (PL) is observed for light-shielded dodecylamine-capped colloidal CdTe quantum dots (CdTe/DDA QDs) dispersed in toluene after washing and recapping. The PL quantum yield (QY) increases from 19% to 25% in 25 hours, indicating gradual reconstruction of the surface. This enhancement is co…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsAdvanced Semiconductor Detectors and Materials

Síntesis de dos nuevos vanadatos de Níquel y Cobre-Níquel usados en la deshidrogenación oxidativa de propano

Adriana Echavarrı́a、Juan Pablo Hernández、Luz Amparo Palacio2013-08-16OpenAlex

Se probaron dos nuevos vanadatos en la deshidrogenacion oxidativa de propano. Los catalizadores fueron sintetizados por el metodo hidrotermico y de coprecipitacion, la caracterizacion se llevo a cabo por medio de difraccion de rayos X, absorcion atomica, analisis termogravimetrico y analisis termico diferencial. La re…

Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisCatalysis and Oxidation Reactions

Towards Numerical Simulation of Non-Convex Colloids at Deformed Liquid-Liquid Interfaces

A.J.G. Wits2013-08-16Utrecht University Repository (Utrecht University)

We developed a numerical scheme to calculate the free energy of convex colloids near at liquid liquid interfaces. Parametrisations of (super)ellipsoidal and hexagonal bifrustums were implemented. We compared free energy calculations of ellipsoids with work done by Joost de Graaf [1]. Then we used our scheme to calcula…

Surfactants and Colloidal SystemsMinerals Flotation and Separation TechniquesPickering emulsions and particle stabilization

Biochemical Nanomaterials Based on Poly(ϵ‐‐caprolactone)

Irakli Javakhishvili、Søren Hvilsted2013-08-16OpenAlex

This chapter introduces the synthetic layout for preparation of biochemical nanomaterials based on poly(caprolactone) (PCL) intended for drug delivery applications. It provides some insight about the possibilities of constructing PCL with the same or different functional groups at the chain ends via ring-opening polym…

Nanoparticle-Based Drug DeliveryAdvanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and properties

A Study on Contact Resistance Failure between Al‐Ti‐TiN Multi‐Layer and W‐via Caused by Hillock Formation

Seo‐Yeon Kim、Y.H. Kim、S. H. Kim 等 7 位作者2013-08-16OpenAlex

We studied how hillock in Al film increases the contact resistance (RC) between bottom-side metal stacked (Al-Ti-TiN) and upper-side W-via-plugs in the backend-structure of the semiconductor. The general structure is the via-etch-stop-on-TiN (VEST), otherwise the via-etch-stop-on-Al (VESA) was observed on the hillocks…

Metal and Thin Film MechanicsSemiconductor materials and devicesCopper Interconnects and Reliability

Sensing H g (II) Ions in Water: From Molecules to Nanostructured Molecular Materials

Imma Ratera、Alberto Tárraga、Pedro Molina 等 4 位作者2013-08-16OpenAlex

This chapter focuses on mercury sensors with an emphasis on newly developed photoactive molecules and nanomaterials which represent an exciting and truly revolutionary approach to mercury detection that benefit from the versatility of chemical synthesis. The most popular binding motifs currently being used to prepare…

Advanced biosensing and bioanalysis techniquesMolecular Sensors and Ion DetectionLuminescence and Fluorescent Materials

Solvating Insoluble Carbon Nanostructures by Molecular Dynamics

Matteo Calvaresi、Francesco Zerbetto2013-08-16OpenAlex

A full understanding of the mechanisms that lead to the dispersion of carbon nanotubes (CNTs) is still lacking. Computer simulations are a convenient tool to study the solvation of CNTs because they can give a microscopic picture of the process. Molecular dynamics simulation describes in detail the interface and morph…

Carbon Nanotubes in CompositesGraphene research and applicationsNanopore and Nanochannel Transport Studies

Movimiento termo-activado de las dislocaciones helicoidales en el aluminio poligonizado

Pedro Tamayo Meza、Viacheslav Yermishki、Juan Sandoval Pineda 等 5 位作者2013-08-16OpenAlex

La estabilidad mecanica y termica resultantes del endurecimiento subestructural en gran medida determinan la consistencia de las estructuras poligonizadas bajo condiciones de servicio. Se estudia la evolucion de las estructuras dislocacionales poligonizadas y se analizan los mecanismos de deformacion plastica bajo con…

Corrosion Behavior and InhibitionAluminum Alloy Microstructure PropertiesAluminum Alloys Composites Properties

TEM Studies on RMnO 3 Multiferroic Materials

Qinghai Zhang、Ling‐Jun Wang、X. K. Wei 等 15 位作者2013-08-16OpenAlex

This chapter contains sections titled: Direct Observation of Interlocked Domain Walls in Hexagonal RMnO3 (R=Tm, Lu) A New Ferroelectric Phase of YMnO3 Induced by Oxygen-Vacancy Ordering

Ferroelectric and Piezoelectric MaterialsMagnetic and transport properties of perovskites and related materialsMultiferroics and related materials

Low‐Dimensionality Effects in Organic Field Effect Transistors

Stefano Casalini、Tobias Cramer、Francesca Leonardi 等 5 位作者2013-08-16OpenAlex

The organic field effect transistor (OFET) is a device where a thin film of an organic semiconductor (OS) bridges a channel between source and drain electrodes. This chapter looks into the OFET as a low-dimensional device and how this distinctive feature can be exploited for a rational design of sensing devices. The c…

Organic Electronics and PhotovoltaicsConducting polymers and applicationsMolecular Junctions and Nanostructures

Dielectric relaxation of water below the melting point: the effect of inner pressure

Abril Adriana Angulo Sherman、H. Mercado-Uribe2013-08-16arXiv (Cornell University)

Despite water is the most studied substance in the Earth, it is not completely understood why its structural and dynamical properties give rise to some anomalous behaviors. Interesting properties emerge when experiments at low temperatures and/or high pressures, are performed. Here we report dielectric measurements of…

Material Dynamics and PropertiesEarthquake Detection and AnalysisScientific Research and Discoveries

Derivation of Forces Acting on the Liquid Weld Metal Based on Arc Pressure Measurements Produced Using Alternating Shielding Gases in the GTAW Process

S.W. Campbell、A.M. Galloway、N.A. McPherson2013-08-16OpenAlex

As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on the gas tungsten arc and gas metal arc welding processes, a comparison between arc pressures produced using argon, helium, alternating gases and GTAW-P has been conducted. The alternating shielding gas process is repo…

Metal and Thin Film MechanicsHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses

Nanostructures and Electron‐Transfer Functions of Nonplanar Porphyrins

Shunichi Fukuzumi、Takahiko Kojima2013-08-16OpenAlex

This chapter deals with recent developments regarding unique nanostructures and functions of nonplanar porphyrins in comparison with those of planar porphyrins. The self-assembly of nonplanar porphyrins can be exploited to produce discrete porphyrin nanostructures. The facile synthesis and robust nature of these nonpl…

Photosynthetic Processes and MechanismsPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms

Alacsony exergiaigényű fűtési-szellőzési rendszerek hőérzeti vizsgálata változó üzemállapotok során

Tünde Klára Kalmár2013-08-16University of Debrecen Electronic Archive (University of Debrecen)

Az EPBD eredeti és módosított változata egyaránt tartalmazza, hogy az energiatakarékosság nem mehet az épületben tartózkodók komfortérzetének rovására, nem járhat egészségügyi kockázattal. \nKutatásom arra irányul, hogy a hőérzet kérdéseit a jövőben várható feltételek figyelembevételével vizsgáljam. \nEz a jövő – amin…

Material Properties and ApplicationsSurface Treatment and Coatings

Recrystallisation of Cold Rolled CuMgSn Alloys Produced from Thin Cast Slabs

Daniel T. Martinez、Agustín Bravo、Víctor H. Jacobo 等 5 位作者2013-08-16OpenAlex

This chapter contains sections titled: Introduction Experiments Results Discussion Discussion Acknowledgements

Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesMetallurgy and Material Forming