Sökning: "interface dipole"

Visar resultat 6 - 10 av 23 avhandlingar innehållade orden interface dipole.

  1. 6. Influence of Electron Charge States in Nanoelectronic Building Blocks

    Författare :Johan Piscator; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; silicon nanowire; conductance method; MOS; Schottky barrier lowering; CV; silicon on insulator SOI ; high-k; interface states; Schottky contacts; TSC.;

    Sammanfattning : The continued efforts to improve performance and decrease size of semiconductor logic devices are facing serious challenges. In order to further develop one of the most important nanoelectronic building blocks, the metal-oxide-semiconductor field-effect-transistor (MOSFET), several major problems have to be solved. LÄS MER

  3. 7. Photoluminescence Studies of Polytype Heterostructured InP Nanostructures

    Författare :Asmita Jash; NanoLund: Centre for Nanoscience; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; III-V semiconductor; Photoluminescence; time-resolved photoluminescence TRPL ; polytype; crystal phase heterostructure; InP; wurtzite WZ ; zincblende; Indirect Exciton;

    Sammanfattning : The interface between two semiconductors significantly influences their optical and electronic properties. In contrast to traditional material heterostructures, polytype heterostructures between wurtzite (wz) and zincblende (zb) segments in homomaterial InP nanostructures exhibit sharp interfaces with minimal strain. LÄS MER

  4. 8. Influence of intermolecular order at the interfaces

    Författare :Parisa Sehati; Michel P. de Jong; Mats Fahlman; Giovanna Iucci; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The work presented in this thesis covers a range of different surfaces and interfaces of organic molecules/polymers and metallic materials. It is of vita importance to understand how charge transfer processes and other electrical interactions existing at physisorped contacts can influence the electronic structure at an interface. LÄS MER

  5. 9. Materials and interfaces for sustainable organic solar cells

    Författare :Qilun Zhang; Mats Fahlman; Xianjie Liu; Ronald Österbacka; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Organic Solar Cell; Interfaces; Photoelectron Spectroscopy; Natural based materials; Sustainable;

    Sammanfattning : Photovoltaics, the apparatus utilizing green solar power to generate electricity, is one of the efficient measures to the continuously increasing energy demand and exacerbated carbon emission of the human civilization. As a candidate with the potential of providing the cheapest and greenest form of electricity, organic solar cells (OSCs) received tremendous scientific interest, resulting in a significant power conversion efficiency (PCE) boosting to above 19% recently. LÄS MER

  7. 10. Molecular electronics : a theoretical study of electronic structure in molecular crystals and surfaces

    Författare :Johan Böhlin; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning :   This thesis deals with theoretical studies of the electronic structures of molecules in organic crystal and molecules adsorbed on metal surfaces. Both studies with first principle calculations and classical mechanics were performed. LÄS MER