Search for dissertations about: "UPS"

Showing result 6 - 10 of 440 swedish dissertations containing the word UPS.

  2. 6. Conjugated materials for organic electronic devices : photoelectron spectroscopy studies

    Author : Wojciech Osikowicz; William R. Salaneck; Linköpings universitet; []
    Keywords : conjugated polymers; oligomers; electronic structure; photoelectron spectroscopy; UPS; XPS;

    Abstract : Conjugated materials have attracted great attention since the discovery of high conductivity in donor and acceptor doped polyacetylene over two decades ago. The discoveries mentioned below caused, however, that the interest begun to shift towards their pristine semi-conducting state. READ MORE

  4. 7. Rare-gas Clusters Studied by Electron Spectroscopy : Structure of Heterogeneous Clusters and Effects of Electron Scattering on Auger Decay

    Author : Marcus Lundwall; Olle Björneholm; Gunnar Öhrwall; Maxim Tchaplyguine; Thomas Möller; Uppsala universitet; []
    Keywords : Physics; Nano-particles; Clusters; Heterogeneous clusters; Core-shell clusters; XPS; UPS; AES; Electron scattering; Radial structure; Surface structure; Surface sensitivity; Synchrotron radiation; Ne; Ar; Kr; Xe; Fysik;

    Abstract : In this Thesis experimental studies of nano-clusters using synchrotron radiation based photoelectron (UPS and XPS) and Auger Electron Spectroscopy (AES) are presented. The investigations may be divided into two parts where the first reports on the structure of heterogeneous two component clusters, and the second concerns electronic decay processes. READ MORE

  5. 8. Studies of The Electronic Structure of CuPc and PTCDA - Two Molecular Organic Semiconductors

    Author : Maria Nilsson Tengelin; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; PTCDA; ITO; UPS; Organic Semiconductor; XPS; CuPc;

    Abstract : Since the discovery of organic materials with conducting and semiconducting proper¬ties a few decades ago, the research in this field has intensified and has become in¬creasingly important. Expected advantages of both economical and technological nature have been powerful driving forces in this development, and today organic based devices are becoming a reality for commercial applications. READ MORE

  6. 9. Synchrotron light based spectroscopy of MBE-grown (GaMn)As structures

    Author : Johan Adell; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Diluted magnetic Semiconductor; GaMn As; UPS; XAS; XPS; RPES;

    Abstract : Structures based on the diluted magnetic semiconductor (GaMn)As have been grown by low temperature molecular beam epitaxy and studied using synchrotron radiation based electron spectroscopy. An investigation of modifications due to in situ low temperature annealing under amorphous As capping has been performed. READ MORE

  7. 10. 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