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 110 for “"C60"”.
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Characterization of C60 Nanoparticles in Aqueous Systems
… discovery that negatively charged aggregates of C60 fullerene are stable in aqueous environments has elicited concerns regarding the potential environmental and health effects of these aggregates. Although many previous studies have used aggregates synthesized using intermediate organic solvents, …
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Photoionization and Photofragmentation of the Endohedral Xe@C60+ Molecular Ion
… of photoionization and fragmentation of the Xe@C60 + endohedral molecular ion is presented in the photon energy range of the well-known Xe 4d giant resonance, and evidence of redistribution of the Xe 4d oscillator strength in photon energy due to multipath interference is reported. Experiments …
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Fullerene C60 based nanostructures by self-assembly and molecular recognition
… have been studied quite extensively, fullerene C60 nanostructures have not received much attention. Furthermore, carbon nanostructures experience a self-healing process when subjected to intense conditions, this created a scope to explore and investigate the effects of such conditions on the …
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Stability of zinc phthalocyanine and fullerene C60 organic solar cells
… devices formed with the well-known materials C60 and ZnPc. Two basic different structures were analyzed, because they offered reasonable performance and potentially long lifetime: the flat heterojunction (FHJ) and the mixed heterojunction in a Metal-Insulator-p-Semiconductor (m-i-p) …
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High-resolution infrared spectroscopy in pursuit of C60 and other astrochemical targets
… rotationally-resolved vibrational spectra of C60 and other astronomically relevant molecules, including the polyoxymethylene 1,3,5-trioxane. C60 was first discovered during experiments intended to simulate the conditions found in carbon stars, and has since been observed via emission …
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Surface mapping based on the correlated emission of ions and electrons from hypervelocity C60 impacts
… Spectrometry (SIMS). Large projectiles, e.g. C60, Au400, display high quasi-molecular ion yields with reduced fragment ion yields compared to atomic or polyatomic projectiles. However, the application of large projectiles in a sub-micrometer beam is hampered by limitations in source brightness …
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A variable temperature scanning tunneling microscopy study of organizing C60 molecules on nanostructured gold surface
The nucleation and growth of C\(_{60}\) molecular nanostructures on the Au (111) surface are studied under various conditions using variable temperature UHV STM. At room temperature, the C\(_{60}\)/Au interface exhibits rich features observed in the STM images, for instance the lifting of the …
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Development of a quantum cascade laser based spectrometer for high-resolution spectroscopy of gas phase C60
… cold, gas-phase spectrum of an infrared band of C60 around 8.5 μm. A high-resolution spectrum will be valuable from an applied astronomy and fundamental spectroscopy perspective. While there have been astronomical detections of C60 emission from thermal emission or UV-excitation, a gas phase …
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Determination of the Raman Spectra of Molten ZnCl2 and Thermophysical Properties of Polymerized C60 Solids Using Atomistic Computational Techniques
Recent advances in high performance computing technology have enabled the implementation of computational materials science algorithms to examine the structure-property relations of a wide variety of materials. Fundamental insights gained from these studies can thus provide guidelines for the …
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Nanostrukturierte Fullerenschichten für organische Bauelemente
… Arbeit behandelt die Herstellung geordneter C60-Schichten, ihre elektrochemische Nanostrukturierung in wässrigen Lösungen und ionischen Flüssigkeiten und den Einsatz geordneter und nanostrukturierter Fullerenschichten in organischen Dünnschichttransistoren. Geordnete C60-Schichten wurden …
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Molecular Self-Assembly of Methyl and Methoxy Substituted Benzoic Acids on Calcite(10.4) and Non-Equilibrium Structures of C60 on CaF2(111)
… trapped non- equilibrium structures of C60 on the CaF2 surface are explored by variation of the preparation pathway. By comparing kinetic Monte Carlo simulations (kMC) with AFM experiments, the responsible molecular process could be identified.<br /> In summary, this thesis provides new …
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Investigating the nuclear import protein KPn߀1 as a cancer therapeutic target
… (iv) performing biophysical analysis of Kpnβ1:C60 interactions. Cervical and oesophageal cancer cells were found to be more sensitive to C60 treatment compared to non-cancer epithelial cell. C60 treatment resulted in the inhibition of cancer cell proliferation, colony formation, migration and …
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Thermoionization and dissociation of fullerenes and endohedral fullerenes
… electron emission from multiphoton excited C60 molecules. A lower limit of the probability of electron emission from multiphoton excited C60 molecules is determined to be about 2.6%. This result indicates that electron emission is not merely parasitic to dissociation.</p><p>The second …
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Synthesis, characterization, and thermal properties of ceramic-fullerene thin films
… films has been characterized. The presence of C60 within the films has been confirmed using a new application of electron impact mass spectrometry, and the structure and stability of dispersed C60 in Zr and ZrO2 have been studied using Raman spectrometry, TEM, XRD, and WDS. Strong interactions …
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Interfacial Studies of Buried Semiconductor Surfaces
… have been performed on noble-metal/Si(111) and C60/semiconductor systems. The bulk of the noble-metal/Si(111) work has centered on the Ag/Si(111) system where the structure of the interface is dependent on the interfacial preparation. The results of the C60/semiconductor studies revealed …
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Single-crystal growth of organic semiconductors and organic electronic applications
… In Chapter 2, a self-assembled monolayer of C60 derivatives with five carboxylic acids was employed to make C60 thin-film transistors. The highly-crystalline C60 monolayer enabled more ordered deposition of C60 thin film, which resulted in higher electrical characteristics when the thin film …
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PUSH-PULL COPOLYMERS IN THIN FILM FOR ELECTRONIC APPLICATION
… bis-thiophene fulleropyrrolidine (bis-Th2P-C60). Moreover, it was also possible to demonstrate that P(NDI2ODT4), P(bis-Th2P-C60), co(NDI2ODT4-bis-Th2P-C60) are good electron acceptor in planar heterojunction(PHJ)-based Organic Solar Cells (OSCs) with poly(3-hexylthiophene-2,5-diyl) (P3HT). …
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Synthesis and biological studies of a fullerene-Taxol conjugate and fullerene-based transfection vectors
Fullerene (C60) derivatives have been extensively studied for a variety of medical applications, which include neuroprotective agents, HIV-1 protease inhibitors, photosensitizers for photodynamic therapy, MRI contrast agents, and radiopharmaceuticals. The first part of this work is dedicated to the …
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^Das^ Fulleren C 60 als molekulare Sonde für Untersuchungen zum Elektronentransfer beim massenspekrometrischen Verfahren der Desorption/Ionisation
… bzw. optischen Eigenschaften des Fullerens C60 zu nutzen, um Aufklärung über die Rolle von Elektron- oder Energietransferprozessen bei der Anwendung der Desorption/Ionisation in der Massenspektrometrie von Biomolekülen zu erhalten. Dazu sind massenspektrometrische und …
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Scanning Probe Microscopy Study of Molecular Self Assembly Behavior on Graphene Two-dimensional Material
… of phenyl-C61-butyric acid methyl ester (PCBM), C60, perylenetetracarboxylic dianhydride (PTCDA) and Gd3N@C80 on flat and rippled graphene 2D material by the experimental methods of scanning tunneling microscope (STM) and atomic force microscope (AFM) and by the theoretical method of density …
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