Search for dissertations about: "Organic device"

Showing result 1 - 5 of 194 swedish dissertations containing the words Organic device.

  2. 1. Organic Hole-Transport Materials for Perovskite Solar Cells

    Author : Linqin Wang; Licheng Sun; Nam-Gyu Park; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hole-transport material; Photovoltaic device; Perovskite solar cell; Dopant-free; Carbazole; Spiro[fluorene-9; 9 -xanthene]; Small organic molecule; Crosslinked polymer; Solution-processed.; Kemi; Chemistry;

    Abstract : Research on perovskite solar cells (PSCs) has undergone dramatic development since the first cells were reported in 2009, and the past decade has witnessed a significant breakthrough on their power conversion efficiencies (PCEs) from 3.8% to 25%. READ MORE

  4. 2. An Organic Electrochemical Transistor for Printed Sensors and Logic

    Author : David Nilsson; Magnus Berggren; George G. Malliaras; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; printable organic electrochemical transistors OECT ; polymers; charge signal carriers; proton-conducting electrolyte Nafion ; Organic chemistry; Organisk kemi;

    Abstract : Conducting polymers entered the research field in late 70´s and efforts aimed at achieving printed electronics started a decade later. This thesis treats printable organic electrochemical transistors (OECT). Some conjugated polymers can be switched between a high conducting and a low conducting state in an electrochemical cell. READ MORE

  5. 3. Organic Photodiodes : Optical, electric, and morphological aspects of polymer based devices

    Author : Lucimara Stolz Roman; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The use of semiconducting organic materials as the active layer in optoelectronic devices offers some advantages in processing and new possibilities of device fabrication such as large-area devices. The mechanism of charge generation upon light absorption in organic materials differs from that in inorganic semiconductors. READ MORE

  6. 4. Molecular design, synthesis and performance evaluation of phenothiazine-based small molecules for efficient organic solar cells

    Author : Srikanth Revoju; Bertil Eliasson; Haining Tian; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic solar cell; small molecule donors; phenothiazine; power conversion efficiency; organisk kemi; Organic Chemistry;

    Abstract : Photovoltaics offers one of the most promising routes to generate electricity in a clean way. As an emerging technology in photovoltaics, organic solar cells (OSC) have attracted a great deal of attention owing to their potential low-cost, lightweight, flexibility and solution processability. READ MORE

  7. 5. Organic functionalization of graphene for applications in energy storage devices and optoelectronics

    Author : Cheng Peng; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; graphene; aqueous energy storage; optoelectronics; organic functionalization; 2D materials;

    Abstract : The emergence of one-atom layer thick materials, exemplified by graphene following its first exfoliation by Geim and Novoselov, has sparked significant research interest. Owing to their unique electronic structure, 2D materials are regarded as promising candidates for diverse applications, including field-effect transistors (FETs), solar energy harvesting, biological systems, water purification, and energy storage devices. READ MORE