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.
Results
Showing 1 to 16 of 16 for “"Size-dependent Properties"”.
-
Size-dependent Electroelastic Properties of Piezoelectric Nanoplates
… nanomaterials have been characterized to possess size-dependent electromechanical coupling properties from both experimental and theoretical perspectives. Therefore it is of great importance to investigate the physical mechanisms of these distinct nano-scale structure features in order to fulfill …
-
Ligand Effect on Gold Nanomolecules Demonstrated Using Aliphatic, Aromatic and Bulky Thiolate Ligands
… protected by a thiolate-monolayer and possess size-dependent properties conferred by quantum confinement. Atomic precision has been achieved in the 1-3 nm range and crystal structures of several AuNMs ranging from 18 to 279gold atoms have been studied. They provide significant insights into the …
-
Single-nanocrystal photon correlation : a versatile tool for elucidating basic physics and characterizing applications-relevant properties
… because of their inherent heterogeneity size-dependent properties. In the past two decades, researchers have developed a diverse toolbox of single-nanocrystal techniques and analyses that is capable of elucidating the complex physics of nanocrystal fluorescence and characterizing many of …
-
Theoretical characterisation of spheroidal PbSe/PbS Core/Shell colloidal quantum dot heterostructures
… full characterisation of the optoelectronic properties of the underlying nanoparticles is desirable. While the size-dependent properties of NQDs are well understood, the effects of NQD shape are less so. This thesis investigates the effect of ellipticity on the optoelectronic properties …
-
Designing Nanomaterials For Electronic And Optoelectronic Devices Through Charge Carrier Control
… device applications because of their unique size-dependent properties and low-cost solution processability. However, the integration of these materials into devices has been challenging due to a lack of available methods to: 1) accurately control charge carrier statistics, such as majority …
-
Gold Nanomolecules : Developing Synthetic Protocols, Characterization And Investigation Of Ligand Effects On Structure And Properties
… chemistry refers to particles/molecules in the size range 1 to 100 nm. Gold nanoparticles were used in ancient times in making decorative glass as they produce vibrant, size dependent, colors upon interaction with light. Gold is a preferred choice of metal for the synthesis of nanoparticles …
-
Nanocrystal-molecule energy transfer conjugates for chemical and biological sensing
… popularly known as quantum dots. The unique, size-dependent properties of NCs are promising for biological microscopy applications in cancer research; however, obstacles such as biocompatibility and sensitivity must be overcome (Chapter I). This Thesis work addresses the challenge of …
-
Computational analyses and optimization of thin-walled lattice structures and the application of physics-informed neural networks in computational mechanics
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
-
Flexible nano-memory device by zinc oxide nanorod arrays
… memory mechanism, while nanomaterials exhibit size dependent properties that are different from their bulk form, discovering in new materials and architectures design as well as novel working principle provides an alternative approach to meet the objectives. In this dissertation, a …
-
Contracted phthalocyanine macrocycles: Conjugation with nanoparticles and the first synthesis of meso-substituted Boron SubTriBenzoDiAzaPorphyrin hybrids (SubTBDAPs)
… to its perfect curvature and interesting optical properties. CdSe quantum dots are well-known materials with size-dependent properties that makes them unique. Hence, some subphthalocyanines bearing functional groups with affinity for the CdSe surface were synthesised by means of cross-coupling …
-
Biochemical and Structural Studies of Amyloid Proteins
… methods to study the structural and biological properties of individual aggregates of Amyloid β peptide and α-Synuclein, proteins whose aggregation is associated with the development of Alzheimer’s and Parkinson’s disease respectively. I expanded the single aggregate visualisation through …
-
Synthesis, Characterization and Electrochemical Properties of Gold Nanomolecules
… out this dissertation are discussed in detail. Size dependent properties of the gold nanomolecules are described. The structure of gold nanomolecules is explained based on the crystal structure of Au25(SCH2CH2Ph)18. The theoretical basis for the stability of the gold nanomolecules is explained …
-
Fundamental research into gold nanocluster properties
… into many applications with their interesting properties, such as magnetism, bio-inactivity, and other size-dependent properties. As the size of the gold material decreases from a bulk material to the nanoscale, new properties are introduced moving through different size regimes. As the …
-
Critical size for bulk-to-discrete transition and segment-induced size effect melting of 2D aliphatic layers
Size miniaturization of aliphatic layers is of interest in the fundamental understanding of their structure-property-relationship. This research studies the size-dependence of structure evolution and thermodynamic principles in a model system of silver alkanethiolate (AgSCn), which consists of …
-
Multiscale modeling and analysis of nanofibers and nonwoven materials
… materials to have many applications. The properties of the fibers and nonwoven fabrics produced, as well as the means for characterizing these, have remained bottlenecks in the development of the technology, both for scale-up purposes and for quality control and reproducibility during …
-
Quantitative Theories of Nanocrystal Growth Processes
… century. Crystallites that are nanometers in size have very different properties from their bulk analogs because quantum mechanical effects become dominant at such small length scales. When a crystallite becomes small enough, the quantum confinement of electrons in the material manifests as a …