Sökning: "organic photonics"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden organic photonics.

  1. 1. Structure and morphology control of organic semiconductors for functional optoelectronic applications

    Författare :Jenny Enevold; Ludvig Edman; Thomas Wågberg; Christian Müller; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Organic electronics; organic photonics; patterning; fullerene; polymerization; dimerization; spray-deposition; morphology; small molecule donor; high open-circuit voltage;

    Sammanfattning : The functionality and application of organic semiconductors are largely dependent on their constituent structure and morphology. This thesis presents a number of functional and novel approaches for the control and tuning of structural and morphological features of a variety of organic semiconductor materials, and also demonstrates that these approaches can be utilized for improved device operation of field-effect transistors, organic solar cells and light-emitting electrochemical cells. LÄS MER

  3. 2. Solution-processed light-emitting electrochemical cells : challenges and opportunities

    Författare :Etienne Auroux; Ludvig Edman; Christian Larsen; Andreas Sandström; Magnus Berggren; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Light-emitting electrochemical cell; PEDOT:PSS; Photonics; Ion transfer; Solution-based fabrication; Electronics; elektronik; Materials Science; materialvetenskap; jonfysik; Ion Physics;

    Sammanfattning : Our world is filling up with electronics. High-tech gadgets are integrated everywhere, from smart fridges able to track expiry dates and food usage, to microchip implants that let us unlock doors and pay with our hands. LÄS MER

  4. 3. Charge Transport Modulation and Optical Absorption Switching in Organic Electronic Devices

    Författare :Peter Andersson; Magnus Berggren; Ronald Österbacka; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrochromic; photochromic; PEDOT:PSS; active matrix display; switchable charge traps; printed electronics; switchable polarizer; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Sammanfattning : Organic electronics has evolved into a well-established research field thanks to major progresses in material sciences during recent decades. More attention was paid to this research field when “the discovery and development of conductive polymers” was awarded the Nobel Prize in Chemistry in 2000. LÄS MER

  5. 4. Electro-optical properties of one-dimensional organic crystals

    Författare :Gleb Lobov; Sergei Popov; Lech Wosinski; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Physics; Fysik;

    Sammanfattning : The recent development of photonics and applications puts new challenges for systems using emission, transmission and modulation of light. For these reasons, novel optical materials attract a special interest for their enabling properties for novel technologies. LÄS MER

  7. 5. Light propagation in an anisotropically scattering medium

    Författare :Elena Vasileva; Sergei Popov; Miguel A. Alonso; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; anisotropic light scattering; scattering material characterization; polarization dependent scattering; diffusive media; hierarchical structure; biocomposites; wood modification; transparent wood; microfibrils angle; organic materials; polymer active devices; dye lasers; coherence; polarization; degree of polarization.; Fysik; Physics;

    Sammanfattning : Scattering is the main phenomenon of light-matter interaction. In this thesis, we consider one specific case of light propagation in a material whose structure causes anisotropic optical scattering - transparent wood. LÄS MER