R. Grinienė ”Synthesis and properties of electroactive materials having chromophores of derivatives of azoles, phenoxazine and diphenylamine” doctoral thesis defence

Author, Institution: Raimonda Grinienė, Kaunas University of Technology

Science area, field of science: Natural Sciences, Chemistry, P003

Scientific Advisors:
2018–2019 Prof. Dr. Saulius Grigalevičius (Kaunas University of Technology, Natural Sciences, Chemistry – N003; 2009–2015 – Scientific Supervisor).
2009–2015 Prof. Habil. Dr. Juozas Vidas Gražulevičius (Kaunas University of Technology, Technological Sciences, Chemical Engineering – T005).

Dissertation Defence Board of Chemical Science Field:
Prof. Dr. Habil. Algirdas Šačkus (Kaunas University of Technology, Natural Sciences, Chemistry – N003)– chairman;
Dr. Marytė Daškevičienė (Kaunas University of Technology, Natural Sciences, Chemistry – N003);
Prof. Dr. Saulutė Budrienė (Vilnius University, Natural Sciences, Chemistry – N003);
Prof. Dr. Vytautas Getautis (Kaunas University of Technology, Natural Sciences, Chemistry – N003); Assoc. Prof. Dr. Jolanta Rousseau (Artua University, France, Technological Sciences, Chemical Engineering – T005).

The doctoral dissertation is available at the library of Kaunas University of Technology (K. Donelaičio St. 20, Kaunas).

Annotation:

The use of charge transporting materials in optoelectronics has increased significantly over the past years. Organic semiconductors and other electroactive materials are superior to their inorganic analogues because of their high diversity, low cost and the possibility of forming their layers using the cheap spin coating method. By connecting various functional fragments to already known compounds, new compounds with better chemical and physical properties can be obtained. These materials are used in many areas: electro-photographic photoreceptors, organic light-emitting diodes, organic transistors, solar cells, etc. Materials used in these areas should be characterized by a high level of charge drift mobility in their layers, good film-forming properties, morphological and thermal stability. However, there is still a lack of organic semiconductors that are characterized by the optimal combination of the afore-mentioned properties. New (di)phenylethenyl-substituted derivatives of azoles, phenoxazine and diphenylamine were synthesized, characterized and are described in this dissertation. These compounds were effective hole-transporting materials and were used in phosphorescent or fluorescent organic light emitting diodes. In addition, new low-molar-mass compounds, containing electronically isolated carbazole or triphenylamine fragments were synthesized and characterized. They were effective host materials for emitting layers of electrophosphorescent organic light emitting diodes.

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May 10 d. 13:00

Dissertation Defence Hall at Kaunas University of Technology (K. Donelaičio g. 73, 403 aud., Kaunas)

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