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 13 of 13 for “"Spin casting"”.
-
Nucleation and growth of unsubstituted metal phthalocyanine films from solution on planar substrates
… although solution based deposition (like spin casting) is cheaper and offers more possibilities to control the structure of the film. With solution based deposition several parameters (like temperature, solvent and etc.) affect the self-organized structure formation via nucleation and …
-
Fabrication and optimization of light emitting devices with core-shell quantum dots
… utilize a QD lm that is deposited via spin-casting, a reliable but highly unscalable technique for the deposition of thin, smooth films of QDs for QD-LED applications. Potential advantages of EPD include the ability for deposition onto a variety of substrate shapes and more …
-
Sol-gel processing, perovskite phase development and properties of relaxor-based thin layer ferroelectrics
… methods were used to prepare thin layers by spin-casting partially hydrolysed alkoxide-based solutions on platinized Si substrates. As-deposited layers were amorphous, and formed a nonferroelectric pyrochlore phase or a ferroelectric perovskite phase, depending on the processing route. Since …
-
Sub-20nm substrate patterning using a self-assembled nanocrystal template
… with a tunable resolution from 2 to 20nm. Spin-casting and micro-contact printing are resolved as methods of forming and depositing these monolayers of quantum dots through self-assembly. Four methods of templated patterning - shadowmasking, lift-off, selective ablation & nano-imprinting - …
-
Characterization and application of Pb-based organometal halide perovskite
… The morphology investigation shows that solution spin-casting method produces needle-shaped crystals, leading to a partial surface coverage and limited conductivity. The two-step from solution method was based on spin-casting PbI2 and CH3NH3I solution gradually, creating the perovskite upon …
-
Oxidative and initiated chemical vapor deposition for application to organic electronics
… rigid nature of the conjugated backbone. Neither spin casting from solution nor melt processing can be used. To answer to this challenge, a solvent-free method of oxidative chemical vapor deposition (oCVD) to synthesize conductive poly (3, 4-ethylenedioxythiophene) (PEDOT) films was demonstrated. …
-
Gallium-based Ultraviolet Nanoplasmonics
… with spatial and ellipsometric measurements. Spin-casting a thin film of crystal violet upon these nanoparticles permitted the demonstration of surface-enhanced Raman spectra, fluorescence, and molecular photodegradation following excitation by a HeCd laser operating at 325 nm (UV). Measured …
-
Synthesis and Characterization of Piezo-Magneto (PVDF-Fe3O4) Composites
… The testing samples are produced using a spin casting process. The characterizations of the samples were performed using X-ray diffraction, Atomic force microscopy, linear staging, Dynamic mechanical analysis, Differential scanning calorimetry, and Fourier transform Infra-Red. X-ray …
-
Thin Films of Semiconducting Polymers and Block Copolymers by Surface-initiated Polymerization
… on utilizing solution-based processing (e.g. spin-casting) of soluble semiconducting polymers. This approach typically provides only modest control over nanoscale molecular organization and polymer chain alignment. A promising alternative to using solutions of pre-synthesized semiconducting …
-
Direct Polymerization Of Sulfonated Poly(arylene ether) Random Copolymers And Poly(imide)Sulfonated Poly(arylene ether) Segmented Copolymers: New Candidates For Proton Exchange Membrane Fuel Cell Material Systems
… routes were utilized in combination with spin-casting and bulk imidization. A series of tough, film-forming segmented copolymers was prepared and characterized. AFM measurements demonstrated the generation of quite well defined, nanophase-separated morphologies which were dependent upon …
-
Study of supernovae and massive stars and prospects with the 4m International Liquid Mirror Telescope
… We performed various experiments including the spin casting of the primary mirror, optical quality tests of the mercury surface, mylar film experiments, etc. The possible scientific capabilities and future contri- butions of this telescope are also discussed. We propose our plans to identify the …
-
Synthesis and Characterization of Thermosetting Polyimide Oligomers for Microelectronics Packaging
… ability to form continuous films during spin casting was elucidated. Employing o-dimethoxybenzene (DMB) as a cosolvent with NMP improved the film-forming ability of the fully imidized 6FDA/ODA oligomer series. This was evidenced by a decrease in viscosity (via suppression of physical-type …
-
Synthesis and Characterization of Sulfonated Polyimides as Proton Exchange Membranes for Fuel Cells
… were fabricated into membranes via solution casting or spin casting from DMAc or m-cresol in order to study film-forming properties. The solution cast dry films of the sulfonated polyimide membranes gave tough, ductile membranes and demonstrated moderate to high water absorption, which is …