Title Organinės optoelektronikos medžiagų fluorescencijos savybių valdymas formuojant molekulinius agregatus /
Translation of Title Control of fluorescence properties of organic optoelectronic materials by molecular aggregate formation.
Authors Miasojedovas, Arūnas
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Pages 115
Keywords [eng] photoluminescence ; organic materials ; molecular aggregates ; stimulated emission ; photoluminescence quantum yield
Abstract [eng] Currently, organic electronics is one of the most expanding technology of semiconductor devices. This direction is rapidly developing due to the constant synthesis of new organic compounds and sophisticated advances in device engineering. Currently, organic materials are used in organic light-emitting diodes (OLEDs), organic thin-film transistors, solar cells and sensors. Low-cost manufacturing techniques such as wet casting or inkjet printing enable organic materials use in large-area and flexible electronic devices. Modern organic electronic materials are multifunctional – this enables not only to improve the material properties, but also to simplify the device architecture. However, the complexity of the molecular structure brings new problems associated with complex phenomena of the new multifunctional molecules -such as the formation of aggregates, intramolecular charge transfer, intramolecular torsion and others. Therefore, the control of the features of new multifunctional molecules is the main problem of organic electronics today. This work focuses on the control of photophysical characteristics of multifunctional organic emitters. Here we study aggregation induced emission and quenching of multifunctional molecular emitters and the possibilities to control these phenomena by optimizing functional properties of the film such as film forming properties, charge transfer, the emission efficiency, amplified spontaneous emission threshold and others.
Type Doctoral thesis
Language Lithuanian
Publication date 2013