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 14 of 14 for “"Bonding structure"”.
-
Density Functional Theory Study of Two-Dimensional Boron Nitride Films
… (i.e. formation energy, defect states, and structure) of point charged defects in monolayer and bilayer hexagonal boron nitride, and subsequently, I focused on the linear and nonlinear mechanical properties of boron nitride films with sp2 and sp3 bonding structures.</p> <p>Experimental …
-
Vapor phase clustering model for water
… of various sizes may be calculated if the bonding structure of the clusters can be predicted and the energy associated with the various structures are known"--Abstract, page ii-iii.
-
Hydrogen desorption and absorption for activated magnesium hydride
… is partially attributed to a refinement in microstructure that results in highly porous particle agglomerates and it is this feature that is likely to have a large effect on the kinetics of hydrogenation due to the rate limiting step of the reaction being hydrogen diffusion into the particles of …
-
Energy Transfer Dynamics in Collisions of Polar and Non-polar Gases with Functionalized Self-Assembled Monolayers
… more rigid due to the intermolecular hydrogen bonding structure at the gas-surface interface. Despite the hydrogen bonding nature of the NH2 and OH terminated SAMs CD4, ND3, and D2O are extensively thermally accommodated on the surfaces, therefore surface rigidity is no solely responsible for …
-
Study of PECVD Films Containing Flourine and Carbon and Diamond Like Carbon Films for Ultra Low Dielectric Constant Interlayer Dielectric Applications
… the capacitance of Back-end-of-line (BEOL) structures by decreasing the dielectric permittivity of the interlayer dielectric material in integrated circuits (ICs) lowers device delay times, power consumption and parasitic capacitance. a:C-F films that are thermally stable at 400C were …
-
Spectroscopic analysis of selected silicon ceramics
… spectroscopy, which analyses the electronic structure of materials by measuring the absorption and emission of x-ray radiation. Absorption and emission spectra of these materials are presented, many of which have not be previously documented. The results are compared to model spectra and …
-
A study of inter- and intramolecular interactions through neutron compton scattering and low temperature matrix isolation infrared spectroscopy
… splitting effects of the predicted isolated-peak structure are discussed, as well as possible significant contributions from conformational, aggregation and steric effects from the matrix on the guest molecule. Density Functional Theory is considered as a method of simulating and predicting the …
-
Highly Conductive Ultrananocrystalline Diamond Thin Films via Nitrogen Incorporation
… UNCD, near edge x-ray absorption fine structure, electron energy loss spectroscopy, and soft x-ray fluorescence were carried out to ascertain the bonding structure of the films. These measurements indicate that the overall grain boundary volume of nitrogen-doped UNCD is increasing, …
-
Orientational fluctuations of liquid water at hydrophobic and hydrophilic interfaces
… we describe the intrinsic molecular structure of a water interface in terms of the anisotropic, depth-dependent distribution of water's molecular orientation. We also analyze the collective hydrogen bond network at the interface which determines the orientational fluctuations of …
-
SiGe-on-insulator and strained-Si-on-insulator for strained-Si CMOS and nanocrystalline-Ge waveguides
… and SOI. The method pioneered employed wafer bonding of polished, relaxed SiGe virtual substrates to oxidized handle wafers. Layer transfer onto insulating handle wafers was accomplished using grind-etchback or delamination via implantation. Both methods were found to produce a rough …
-
Understanding cation catalytic effects in electron transfer reactions at molecular scale
… pathway, cations modify the extended hydrogen bonding structure of water in the solution; thereby, modifying the reorganization en- ergy associated with the electron transfer. In direct pathway, cations pair up with the redox centers to modulate the local solvation characteristics, which in …
-
Non-covalent Intermolecular Interactions in Polymer Design: Segmented Copolymers to Non-viral Gene Delivery Vectors
… of intermolecular interaction such as hydrogen bonding, cooperative À-À stacking, electrostatic interactions, van der waals forces, metal-ligand coordination, or hydrophobic/solvophobic effects. The following research describes the tailoring of specific intermolecular interactions aimed at …
-
Estudio de la estabilidad térmica del a-SiNx:H producido mediante la técnica de plasma ECR-CVD
[SPA] La técnica de deposición química en fase de vapor activada por resonancia ciclotrónica de electrones (ECR-CVD) ha sido empleada para crecer láminas delgadas de nitruro de silicio hidrogenado (SiNx:H) de varias composiciones. Este dieléctrico de elevada permitividad tiene numerosas …
-
Structure–Property Relationships Of: 1) Novel Polyurethane and Polyurea Segmented Copolymers and 2) The Influence of Selected Solution Casting Variables on the Solid State Structure of Synthetic Polypeptide Films Based on Glutamate Chemistry
… as the relatively stronger bidentate hydrogen bonding replaced monodentate hydrogen bonding in these materials. A thread-like, microphase separated morphology was visually confirmed using atomic force microscopy. Other techniques such as ambient temperature tensile testing, and wide and small …