Sökning: "HOMO LUMO"
Visar resultat 11 - 15 av 16 avhandlingar innehållade orden HOMO LUMO.
11. Electronic Structure and Film Morphology Studies of PTCDI on Metal/Semiconductor Surfaces
Sammanfattning : Organic semiconductors have received increasing attention over the last decades as potential alternatives for inorganic semiconductors. The properties of these films are highly dependent on their structural order. LÄS MER
12. Biomolecule Functionalization of Diamond Surfaces for Implant Applications - A Theoretical Study
Sammanfattning : Diamond is a promising material with unique chemical properties. In this thesis, nano-scale diamond quantum size effects were investigated using several chemical property indicators. LÄS MER
13. Surface Energy Patterning and Optoelectronic Devices Based on Conjugated Polymers
Sammanfattning : The work presented in this thesis concerns surface energy modification and patterning of the surfaces of conjugated polymers. Goniometry and Wilhelmy Balance techniques were used to evaluate the surface energy or wettability of a polymer’s surface; infrared reflectionabsorption spectroscopy (IRAS) was used to analyse the residuals on the surface as modified by a bare elastomeric stamp poly(dimethylsiloxane) (PDMS). LÄS MER
14. Iron Carbonyl Clusters as Proton Reduction Catalysts
Sammanfattning : Abstract – The mixed-valence triiron complexes [Fe3(CO)7-x(PPh3)x(µ-edt)2] (x = 0, 1, 2; edt = SCH2CH2S) and [Fe3(CO)5(κ2-diphosphine)(µ-edt)2] (diphosphine = dppv, dppe, dppb, dppn) have been prepared and structurally characterized. In comparison to the diiron complex [Fe2(CO)6(µ-edt)], [Fe3(CO)7(µ-edt)2] catalyzes proton reduction at 0. LÄS MER
15. Voltage Losses in Non-fullerene Organic Solar Cells
Sammanfattning : Non-fullerene acceptors have significantly boosted the efficiencies of organic solar cells (OSCs) in the past few years. State-of-the-art OSCs have achieved a certificated power conversion efficiency of 17.4%. LÄS MER