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 17 of 17 for “"film preparation"”.
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Development of poly(3-octylthiophene) thin films for regulating osteoblast growth
… The central hypothesis was that specific P3OT film properties (i.e., thickness, film preparation conditions, and level of doping) are able to regulate osteoblast functions (i.e., attachment and proliferation). Discrete and combinatorial techniques were utilized to prepare and characterize thin …
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The physics and chemistry of transport in CdSe quantum dot solids
… emphasizes how the chemistry and physics of QD films are deeply entwined. Chapter 2 demonstrates that the photoconductivity and dark conductivity of CdSe QD films are enhanced following annealing at high temperatures. Chapter 3 illustrates that the purity of the QD capping reagent …
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Physicochemical Properties and Antioxidant Activity of Enzymatic Modified Soy Protein Isolate Films with Lignin
… optimized enzyme crosslinking activity before film preparation. Physicochemical properties including viscosity and molecular weight distribution of the modified proteins and films were measured. Results confirmed the enzymatic treatment is an effective way to modify the SPI based biopolymeric …
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Development of Multi-layer Films Containing Natural Antimicrobial Agents
In this research, multi-layer packaging films comprising an inner coating layer containing natural antimicrobial (AM) agents were developed. Volatile essential oils obtained from plant extracts including carvacrol, linalool and methylchavicol were used as the active AM agents in the coating layer. …
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Variation von Kristallinität und Stöchiometrie in mittels PLD hergestellten Schichten aus Galliumoxid, Galliumnitrid und Bariumzirkonat
… (PLD) is an ablation technique for thin film preparation of many materials. The film properties can be well controlled by the process parameters. Therefore, in many cases a given material can be deposited with different properties by changing one or more process parameters. In this thesis …
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Single molecule tracking studies of solvent-swollen microdomains in cylinder-forming polystyrene-Poly (ethylene oxide) diblock copolymer films
… oxide) (PS-b-PEO) films is done by using single molecule tracking. These films are prepared by sandwiching benzene (with/without methanol) or THF (with/without methanol) solutions containing 5 nM sulforhodamine B (SRB) between two glass substrates. The PEO …
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Optimization of titanium dioxide (TiO2) thin film using dip coating technique for oxygen gas sensor
Titanium dioxide (TiO2) thin film gas sensors have been widely used and investigated in the detection of target gases. However, to obtain anatase phase for oxygen gas sensor with low and short annealing temperature is the obstacle in the fabrication of oxygen gas sensor. It is thus desirable to …
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Gas transport properties of reverse selective nanocomposite materials
… permeability of light gases in the heterogeneous films increased with increasing particle loading. Depending on particle loading, brookite filled nanocomposite light gas permeability increased to over four times that of the unfilled polymer, whereas at high periclase loadings the nanocomposites …
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Electron beam lithography of molecular glass resist films prepared by physical vapor deposition
… physical vapor deposition as alternative resist preparation technique and the materials development for this film preparation technique are covered. In the first chapter of this thesis the characterization of the utilized electron beam exposure tool but also the establishment of a processing …
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Optical and thermal characteristics of thin polymer and polhedral oligomeric silsesquioxane (POSS) filled polymer films
… technique for characterizing ultrathin polymeric films. By conducting the experiments in different ambient media, multiple incident media (MIM) ellipsometry, simultaneous determinations of a film's thickness and refractive index are possible. Poly(tert-butyl acrylate) (PtBA) films serve as a model …
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Processing - structure - property interrelationships of ferroelectric thin films with emphasis on formation kinetics
… many interesting properties. Recently, PZT thin films have been considered as one of the most promising materials for the application of nonvolatile electronic memories. In this study, a sol-gel process for PZT film preparation was adopted and greatly modified. PZT films with very desirable …
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Extraction and characterization of collagen from bovine hides for preparation of biodegradable films
… Secondly, to prepare and characterize biopolymer films from the extracted collagen. Methods of acid-solubilisation (AS), acid-enzyme solubilisation (AES1) and a modified method of acid-enzyme solubilisation (AES2) were applied to extract collagen from bovine hide off-cuttings of bull, calf, cow, …
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Novel ultra-violet/blue optoelectronic materials and devices based on copper halides (CuHa)
… are detailed. The use of γ-CuBr for thin film based blue light emitting devices is investigated. Its structural and physical properties allow for vacuum deposition on a variety of substrates and herein we report on the deposition of γ-CuBr on Si, glass and indium tin oxide coated glass …
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Synthesis and Combinatorial Optimization of Novel Star-Shaped Resist Materials for Lithographic Applications
… and improved combinatorial techniques for thin film investigations in general and utilized for lithographic patterning investigations in particular. The lithographic patterning procedure of chemically amplified resist systems consists of various steps: film preparation, post apply bake (PAB) to …
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Fabrication of zein nanostructure
… for fabricating advanced zein packaging films and zein microfluidic devices. Two nanotechnology approaches were focused: the polymer nanoclay nanocomposite technique where the nanocomposite structures were created in the zein matrix, and the soft lithography and the microfluidic devices …
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Development of Molecular Glasses for Solvent-Free Photolithography utilizing Combinatorial Vapor Deposition
This thesis is concerned with solvent-free film preparation of low molecular weight, amorphous, photosensitive resists by physical vapor deposition (PVD), their subsequent UV exposure through a mask and their development to produce features in the micro- and nanometer range. In the frame of the …