Sökning: "4-ethylenedioxythiophene"
Visar resultat 1 - 5 av 51 avhandlingar innehållade ordet 4-ethylenedioxythiophene.
1. Electronic and optical properties of conducting polymers from quantum mechanical computations
Sammanfattning : Conductive polymers are also known as "organic metals" due to their semiconducting properties. They are found in a wide range of applications in the field of organic electronics. However, the growing number of experimental works is not widely supported with theoretical calculations. LÄS MER
2. Quantum Mechanical Calculations of Thermoelectrical Polymers and Organic Molecules
Sammanfattning : The subject of the present licentiate thesis is density functional theorybased electronic structure calculations of organic thermoelectric materials and novel organic molecules. We used the Car-Parrinello molecular dynamics method in order to investigate the electronic structure of “green energy” and “greenchemistry” compounds. LÄS MER
3. Conjugated Polymer-based Conductive Fibers for Smart Textile Applications
Sammanfattning : Electrically conductive or electro-active fibers are the key components of smart and interactive textiles, which could be used in medical, sports, energy, and military applications in the near future. The functionalization of high-performance textile yarns/fibers with conjugated polymers can produce conductive fibers with better electro-mechanical properties, which is difficult with commonly used spinning techniques. LÄS MER
4. Synthesis of new building blocks for conjugated oligomers
Sammanfattning : This thesis deals with the synthesis of new organicmaterials for electronic applications. Several new ring-formingmethods are employed to construct sulphur heterocycles: Tandemelectrophilic aromatic substitution and acid-catalyzedtransetherification of methoxythiophene, double electrophilicaromatic substitutions with ethane-1, 2-disulphenyl chloride,and also, the reaction of dienes with sulphur dichloride. LÄS MER
5. Thermoelectric polymer-cellulose composite aerogels
Sammanfattning : Thermoelectric materials are scrutinized as energy materials and sensing materials. Indeed, they convert thermal energy into electrical energy. In addition, those materials are actively sensitive to a temperature modification through the generation of an electric signal. LÄS MER