Sökning: "C-60"
Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet C-60.
1. Precise measurements of electron affinities using Laser Photodetachment Threshold Spectroscopy
Sammanfattning : In this work we have performed Laser Photodetachment Threshold Spectroscopy (LPTS) to determine the electron affinities of the atomic species $^{133}$Cs and $^{16}$O with high precision. The negative ion of Cesium has been produced and investigated at the Gothenburg University Negative Ion and Laser LAboratory (GUNILLA) while the Oxygen anion have been studied in the Double ElectroStatic Ion Ring ExpEriment (DESIREE) at Stockholm University. LÄS MER
2. Mutual Neutralization in collisionswith oppositely charged fullerene(C60) ions
Sammanfattning : In this thesis, results from Mutual Neutralization experiment carried out atthe DESIREE facility, involving merged interacting ion beams, of oppositelycharged C60 ions are presented. This reaction may be of importance for explain-ing reliable estimates of the ionization balance in astrophysical environments,which defines the chemistry in molecular gas clouds. LÄS MER
3. Quantum Transport Theory in Graphene
Sammanfattning : In this thesis, we focus on different aspects of electron transport in nanostructured graphene (such as graphene nanoribbons). Wedevelop and implement numerical methods to study quantum coherent electron transport on an atomistic level, complemented by analytical calculations based on the Dirac approximation valid close to the points $\vec{K}$ and $\vec{K}^\prime$ in the graphene Brillouin zone. LÄS MER
4. Electron transfer in slow collisions of highly charged ions with atoms and molecules
Sammanfattning : Several spectroscopic methods have been used to study single- and double electron transfer in slow collisions between highly charged ions with neutral atoms and the C60 molecule.Radiative and non-radiative decay from high-lying doubly-excited states, populated in slow (v = 0.40 a.u. LÄS MER
5. Thermal Properties of Clusters and Molecules - Experiments on Evaporation, Thermionic Emission, and Radiative Cooling
Sammanfattning : This thesis presents experiments performed on clusters and molecules, where the three channels of unimolecular decay have been studied. Evaporation from protonated and negatively charged water cluster have yielded size dependent heat capacities, where the smallest sizes with fewer than $21$ molecules show a heat capacity similar to bulk ice whereas clusters with molecules between $21$ and $300$ have a heat capacity in between that of ice and liquid water. LÄS MER
