ChemInform Abstract: PKU‐10: A New 3D Open‐Framework Germanate with 13‐Ring Channels.
Abstract [Me4N]Ge11O19(OH)9 (PKU‐10) is synthesized by hydrothermal reaction of GeO2 and Me4NOH (autoclave, 175 °C, 14 d).
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ChemInform Abstract: Autogenic Synthesis of Green‐ and Red‐Emitting Single‐Phase Pr2O2CO3 and PrO1.833 Luminescent Nanopowders.
Abstract Pure Pr2O2CO3 nanopowders are synthesized by thermolysis of Pr(OAc)3 in a closed reactor under autogenic pressure (700 °C, about 2 MPa, 1 h, yield given in g).
Comment on “Magnetoresistance of CoNiCu∕Cu Multilayers Electrodeposited from Electrolytes with Different Ni Ion Concentrations” [J. Electrochem. Soc., 157, D538 (2010)]
Abstract not Available.
ChemInform Abstract: The Topotactic Reduction of Sr3Fe2O5Cl2—Square Planar Fe(II) in an Extended Oxyhalide.
Abstract Binary metal hydrides can be used to selectively deintercalate oxide ions from complex transition metal oxychlorides.
ChemInform Abstract: 9Mg(OH)2·MgCl2·4H2O, a High Temperature Phase of the Magnesia Binder System.
Abstract The metastable title phase exists at the extended metastable isotherm of Mg(OH)2 in the system MgO—MgCl2—H2O at 120 °C and occurs as intermediate binder phase during setting of magnesia cement due to temperature development of the setting reaction.
ChemInform Abstract: Metal—Organic Frameworks (MOFs) and Coordination Polymers
Abstract Review: 183 refs.
Macroprécurseurs silylés de matériaux hybrides organique-inorganique : synthèse, auto-assemblage et hydrolyse-condensation
Cette these porte sur la preparation de materiaux hybrides organique-inorganique nanostructures a partir de macro-precurseurs de silice. Notre approche a consiste a synthetiser des copolymeres a blocs portant des groupements trialcoxysilane pendants susceptibles d’etre hydrolyses-condenses pour former un reseau inorga…
ChemInform Abstract: The Use of Polarizable [AuX2(CN)2]‐ (X: Br, I) Building Blocks Toward the Formation of Birefringent Coordination Polymers.
Abstract The structures of the new [AuX2(CN)2]‐ compounds are determined by single crystal XRD.
Solid State NMR Investigations of Chain Dynamics and Network Order in Model Poly(dimethylsiloxane) Elastomers
This work is at a relatively early stage, however it has been demonstrated that we can reliably probe basic network architectures using the MQ-NMR technique. The initial results are in good agreement with what is known from standard network theory and will serve as a basis for the study of progressively increasing str…
Modeling of heterojunction photovoltaic cells based on ZnO nanowires array and earth-abundant cuprous oxide absorbers
As a potential solution for low-cost efficient solar cells, radial junctions consisting of ZnO nanowires arrays embedded in Cu2O thin films have been theoretically modeled. Calculations have been performed to explore the geometric dependence of performance of such wire-based solar cells. By properly setting material p…
Molecular beam epitaxy of GeTe-Sb2Te3 phase change materials studied by X-ray diffraction
Die monolithische Integration von Phasenwechselmaterialien mit Halbleiter-Hetero\-strukturen er\"offnet neue Perspektiven f\"ur zuk\"unftige Generationen von nichtfl\"uchtigen Speicherbauelementen. %Epitaktische Phasenwechselmaterialien erm�glichen detaillierte %Studien der strukturellen �nderungen w�hrend des P…
Novel NDE techniques in the power generation industry
The thesis presented here comprises the work undertaken for research into novel NDE techniques in the power generation industry. This has been undertaken as part of the Engineering Doctorate Scheme run by the Research Centre for Non-Destructive Evaluation (RCNDE), which aims to bridge the technological gap between uni…
2D organisation of complex organic molecules
The self-assembly of two-dimensional molecular systems is of significant interest, offering an insight into the fundamental interactions which drive the formation of complex supramolecular structures. A careful choice of the molecular 'building blocks' for such self-assembled systems potentially allows the design and…
Probing electron-electron interactions in quantum Hall systems by scanning tunneling spectroscopy
Using low-temperature scanning tunneling spectroscopy applied to the Cs-induced two-dimensional electron system (2DES) on p-type InSb(110), we probe electron-electron interaction effects in the quantum Hall regime. The 2DES is decoupled from p-doped bulk states and exhibits spreading resistance within the insulating q…
Quntum chemical calculations of the spectroscopy of core electrons
The performance of X-ray spectroscopy techniques has been advanced by recent reviving in X-ray sources. These techniques that involve the excitation of core electrons can provide an atom specific probe of electronic structure and provide powerful analytical tools that are used in many fields of research. Theoretical c…
Thermo-responsive surfaces for enzyme free mammalian cell culture
Embryonic stem cells are of great interest to scientists as they can differentiate into any somatic cell lineage making them excellent candidates for tissue regeneration and cell based treatment therapies. Currently, human embryonic stem cells (hESCs) are cultured using feeder fibroblasts or protein substrates such as…
Hydrothermal synthesis and characterisation of α-Fe2O3 nanorods
The hydrothermal synthesis (HS) of α-Fe2O3 nanorods (NRs) is investigated using a combination of complementary analytical techniques. The construction of an HS ‘process map’ as a function of temperature, time and phosphate (PO43-) concentration provides insight into the nature of intermediate β-FeOOH NR precipitation,…
Méthodologie d'analyse thermique multi niveaux de systèmes électroniques par des modèles compacts
Au cours de ces dernieres annees, la taille des transistors a diminue considerablement permettant ainsi de reduire la taille des composants et de multiplier le nombre de composants dans un systeme. Cette condensation des transistors avec la montee en frequence des circuits est a l'origine d'une augmentation drastique…
Optical emission and Raman scattering in InGaN thin films grown by molecular beam epitaxy
1 ABSTRACT — We present optical and structural studies of state-of-the-art InxGa1-xN thin films grown by molecular beam epitaxy (MBE) (31%<x<75%) on a GaN buffer layer. Photoluminescence (PL) is used to evaluate the band-gap of InxGa1-xN in terms of an empirical bowing-like formula. The obtained bowing parameter is b…
Measuring the electronic and steric effect of some phosphine ligands
This project describes and compares two methods of assessing the electronic properties of some phosphine ligands. The ligands PPh3, Ph2P(C6H4-3-CH3), PPh2C6H4-4-Cl, P(C6H4-4-Cl)3, PPh(C6H4-4-SCH3)2, P(C6H4-4-OCH3)3 were investigated. Additionally ligands of the type Ph2PR and PhPR2 where R = mesityl, cyclohexyl or ada…