Sökning: "organic semiconductors"
Visar resultat 11 - 15 av 81 avhandlingar innehållade orden organic semiconductors.
11. Correlating Nanostructure and Electronic Properties of Organic Semiconductors by Electron Microscopy
Sammanfattning : Organic semiconductors enable fabrication and efficient processing of electronic devices with light weight, mechanical flexibility and tuneable properties. Despite significant progress in the last decades, efficiencies and long-term stabilities of these systems still need to be improved. LÄS MER
12. Structure-dependent charge transfer at the interafce between organic thin films, and metals and metal oxides
Sammanfattning : The purpose of the research work, presented in this thesis is to offer a detailed atomic level study of interfaces created by adsorption of organic molecules on metals and metal oxides to point out significant impact of substrate, dye structure as well as different mediators on the charge transfer at these interfaces, which is proven to influence the device performance to a great extent.Adsorption of organic photosensitive molecules on metals and metal-oxides is the main focus of this thesis. LÄS MER
13. Studies of The Electronic Structure of CuPc and PTCDA - Two Molecular Organic Semiconductors
Sammanfattning : 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. LÄS MER
14. Charge and Energy Transport in Disordered Organic Semiconductors
Sammanfattning : Improvement of the performance of organic disordered semiconductors (OSC) is driven by the understanding of the underlying charge transport mechanisms and systematic exploitation thereof. There exists a multitude of materials and material systems based on polymers and small molecules with promising performance for use in organic light emitting diodes, photovoltaics, organic field-effect transistors and thermoelectrics. LÄS MER
15. Charge transport modulation in organic electronic diodes
Sammanfattning : Since the discovery of conducting polymers three decades ago the field of organic electronics has evolved rapidly. Organic light emitting diodes have already reached the consumer market, while organic solar cells and transistors are rapidly maturing. One of the great benefits with this class of materials is that they can be processed from solution. LÄS MER