Search for dissertations about: "polymer light emitting diode"

Showing result 1 - 5 of 12 swedish dissertations containing the words polymer light emitting diode.

  2. 1. Synthesis of Conjugated Polymers and Small Molecules for Organic Light-Emitting Devices and Photodetectors

    Author : Petri Henrik Murto; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; solution processing; conjugated polymers; fluorescence; near-infrared; light-emitting electrochemical cell; organic photodetector; organic light-emitting diode;

    Abstract : Production cost and environmental impact are the two major concerns that are related to the conventional optoelectronic devices. It is desirable for the modern semiconductors that they are free of toxic/costly metals, they can be processed with low-cost solution-based methods, and their optical, electronic, and mechanical properties can be easily tuned depending on the target application. READ MORE

  4. 2. Luminescent Polymer Films in Layered Devices : A Theoretical and Experimental Study on Light Emission from Polymer-based Devices

    Author : Thomas Granlund; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis concerns optical modelling and characterisation of thin film layered structures, including luminescent conjugated polymers, with respect to the emission properties. Included in the study were three different types of devices: Organic light-emitting diodes, microcavities and half cavities. READ MORE

  5. 3. Synthesis and Characterisation of Conjugated Polymers with High Electron Affinity

    Author : Maria Jonforsen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; light-emitting diode; solar cell; quinoxaline; conjugated polymer; photodiode; 4-b]pyrazine; pyrido[3; synthesis; photo-oxidation; electron affinity; pyridine;

    Abstract : This thesis describes synthesis and characterisation of conjugated polymers with high electron affinities. Polymers of this type are desired, for example, for use in light-emitting devices or as electron accepting material in photodiodes/solar cells. READ MORE

  6. 4. Monopolar and Bipolar Membranes in Organic Bioelectronic Devices

    Author : Erik O. Gabrielsson; Magnus Berggren; Edwin Jager; Daniel Simon; Ari Ivaska; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bioelectronics; ionic; ion transport; bipolar membrane; conjugated polymer; amyloid; self-assembly;

    Abstract : In the 1970s it was discovered that organic polymers, a class of materials otherwise best know as insulating plastics, could be made electronically conductive. As an alternative to silicon semiconductors, organic polymers offer many novel features, characteristics, and opportunities, such as producing electronics at low costs using printing techniques, using organic chemistry to tune optical and electronic properties, and mechanical flexibility. READ MORE

  7. 5. InP/GaInP Nanowires for Tandem Junction Solar Cells : Growth, Processing, and Characterization

    Author : Xulu Zeng; Fasta tillståndets fysik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanowires; GaInP; InP; tandem; tunnel diode; solar cell;

    Abstract : Semiconductor nanowire solar cells have achieved comparable efficiency to their planar counterparts with substantial reduction of material consumption. Tandem geometry is a path towards even higher efficiency. However, extensive studies are needed to reach this goal. READ MORE