Search for dissertations about: "organic semiconductors"

Showing result 21 - 25 of 81 swedish dissertations containing the words organic semiconductors.

  2. 21. Thermal evaporation of small molecules-A study of interfacial, bulk and device properties for molecular electronics

    Author : Måns Andreasson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic semiconductors; OLED; UPS; OLET; ITO; molecule solid interfaces; OFET; CuPc; PTCDA;

    Abstract : Electronic devices based on organic materials have recently become an emerging technology for many applications. Promising aspects are the compatibility with almost any substrate and low cost processing methods. READ MORE

  4. 22. Theory and Modelling of Functional Materials

    Author : Vancho Kocevski; Jan Rusz; Christophe Delerue; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nanocrystals; graphene; alloys; density functional theory; optical properties; electronic properties; core-shell structures; semiconductors;

    Abstract : The diverse field of material research has been steadily expanding with a great help from computational physics, especially in the investigation of the fundamental properties of materials. This has driven the computational physics to become one of the main branches of physics, allowing for density functional theory (DFT) to develop as one of the cornerstones of material research. READ MORE

  5. 23. Characterization of Surfaces Relevant to Nanotechnology

    Author : Emelie Hilner; Synkrotronljusfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nanotechnology; surface science; semiconductors; scanning tunneling microscopy; spectroscopic photoemission and low energy electron microscopy; low energy electron diffraction;

    Abstract : In this thesis investigations of the structure and dynamics of semiconductor surfaces relevant for the synthesis of nanostructures are presented. The studies were performed using Scanning Tunneling Microscopy (STM), Low Energy Electron Diffraction (LEED), and Spectroscopic PhotoEmission and Low Energy Electron Microcopy (SPELEEM). READ MORE

  6. 24. Molecular Interaction of Thin Film Photosensitive Organic Dyes on TiO2 Surfaces

    Author : Shun Yu; Mats Göthelid; Chassé Thomas; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; photoelectron spectroscopy; X-ray absorption spectroscopy; organic semiconductor; oxides; adsorption; dye sensitization; electronic structure; charge transfer;

    Abstract : The photosensitive molecule adsorption on titanium dioxide (TiO2) forms the so-called “dye sensitized TiO2” system, a typical organic/oxide heterojunction, which is of great interest in catalysis and energy applications, e.g. dye-sensitized solar cell (DSSC). Traditionally, the transition metal complex dyes are the focus of the study. READ MORE

  7. 25. Loss Mechanisms In Non-Fullerene Organic Solar Cells

    Author : Huotian Zhang; Feng Gao; Olle Inganäs; Weimin Chen; Jenny Nelson; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; photovoltaics; organic solar cell; non-fullerene; charge recombination; voltage loss; fill factor;

    Abstract : Photovoltaics are one of the most important sustainable energy sources in the 21st century. Among photovoltaics, organic solar cells (OSCs) offer many advantages such as ease of processing, lightweight, the potential for flexibility, and tunable properties. Its peculiar nature and complexity present a fascinating charm, attracting many researchers. READ MORE