Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 173 for “"organic-inorganic"”.
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Hybrid organic-inorganic pervaporation membranes for desalination
Membrane desalination using reverse osmosis (RO) has been the leading candidate technology for supplying fresh water in recent years. However, there is a strong motivation for improving the established membrane process and/or developing alternative membrane technologies to overcome the limitations …
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Hybrid organic/inorganic nanotubes of imogolite type
The aim of the present PhD project is to describe the developments obtained in imogolite research field, concerning the synthesis and characterization of two new modified imogolite nanotubes, either by direct or post-synthesis reactions, as compared to unmodified synthetic imogolite. Using a …
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UV-curable organic-inorganic hybrid polyurethane coating
<p>This thesis explored a series of organic-inorganic hybrid polyurethane oligomers with varying molecular weights and functional groups (acrylate and/or silane) that were cured with a single ultraviolet (UV) trigger but two photo-initiators. Upon UV irradiation, the free-radical initiator …
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Organic-inorganic hybrid materials: new functionalised polyoxotungstates
… functionalisation via covalent grafting of organic groups onto the polyoxometalate clusters is less investigated and provides a method of fine tuning the properties of these materials towards desired applications. Polyoxotungstates (polyoxometalates with tungsten as the metal) are …
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Smart organic-inorganic nanohybrids of functionalized silsesquioxane nanoparticles
The formation and characterization of smart organic-inorganic nanohybrids was studied. The inorganic part was formed by N,N-di(2,3-di¬hydroxy¬propyl)¬3-amino¬propyl¬functional silsesquioxane nanoparticles being highly functionalized with ca. 14 tertiary amino groups per particles, each amino group …
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Organic/inorganic nanopapers based on graphene-related materials
L'abstract è presente nell'allegato / the abstract is in the attachment
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Device Physics of Organic-Inorganic Hybrid Perovskite Semiconductors
… is mitigated by modifying the electrode with organic interlayers, leading to the demonstration of single crystal perovskite transistors with the highest reported mobilities of up to 15cm²/Vs at low temperatures. Subsequently, the research tackles challenges related to low mobility, high trap …
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Design, Fabrication and Applications of Organic-Inorganic Hybrid Systems
… way to the fabrication of nano to micro scale organic-inorganic hybrid particles was demonstrated. A well known “template-assisted approach” was chosen for the preparation of these hybrid particles, in which the inorganic material of interest is templated against the template particles. A …
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DESIGN AND SYNTHESIS OF FERROIC HYBRID ORGANIC-INORGANIC PEROVSKITES
Hybrid organic–inorganic perovskites afford highly versatile lattice dimensionalities, establishing them as novel material paradigms for the tailoring of ferroic behaviors. This flexibility allows for the modification of symmetry through lattice distortion or chirality transfer, thereby enabling …
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Hybrid organic-inorganic nanomaterials for applications at the biointerfaces
… to the synthesis and characterization of several inorganic and organic nanomaterials, including gold and silver nanoparticles, hydroxyapatite, graphene and graphene oxide nanosheets tailored at the surface with stimuli-responsive polymers (polyacrylate and/or polyacrylamide) or specific chemical …
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Towards Glasses from Two-Dimensional Hybrid Organic–Inorganic Perovskites
Hybrid organic-inorganic perovskites (HOIPs) are an emerging class of functional materials with exceptional potential in optoelectronics. While research has long focused on their crystalline states, recent discoveries have revealed that certain HOIPs can melt, and be quenched into frozen liquids, …
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The development of inorganic and organic/inorganic membranes for DMFC application
A fuel cell is an energy device that converts chemical energy to electrical energy. Low temperature fuel cells, namely the hydrogen fuel cell and the direct methanol fuel cell are preferred amongst other fuel cell types for stationary and vehicular applications, due to their small size and their …
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Nanostructured hybrid organic/inorganic materials by the nanobuilding blocks (NBB) approach
… of the particles. Films of the different organic-modified NP were obtained by spin coating and contact angle measurements were performed. FE-SEM was used in order to observe an eventual change in morphology after thermal treatment under reduced atmosphere. The ability to retain the shape …
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Design and investigation of novel photoactive liquid crystalline organic-inorganic hybrids
… these properties four series of monodisperse inorganic/organic hybrids were synthesised. The liquid crystalline properties were tuned using a multiple-mesogen approach similar to the one used in polymeric systems. Tools used were variation of mesogen groups and the use of a combination of …
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Study and achievement of organic-inorganic innovative materials through electrochemical techniques
… of conductors and semiconductors using organic molecules is a very important issue in the development of novel organic/inorganic heterostructures suitable as materials in sensors, biosensors, clinical diagnostics, biological sensing and energy storage and conversion. In this context, to …
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Supramolecular hybrid organic-inorganic multicomponent architectures in solution and on surface
… (building block) to obtain a complex of organic or inorganic interactions creating a new emergent condensed phase of matter, such as gels, liquid crystals and solid crystal. Further the generation of multicomponent supramolecular hybrid architecture, a mix of organic and inorganic …
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Syntheses and Photophysical Studies of Two-Dimensional Hybrid Organic-Inorganic Semiconductors
… of two families of two-dimensional (2D) hybrid organic-inorganic semiconductors with exciting properties for optoelectronic applications. The first family is 2D lead halide perovskites (LHPs), which have received immense interest due to their solution processability and interesting luminescent …
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