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Publikācija: Synthesis and Physical Properties of Glassy Triphenyl Group Containing Derivatives of DCM Laser Dye

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Nosaukums oriģinālvalodā Synthesis and Physical Properties of Glassy Triphenyl Group Containing Derivatives of DCM Laser Dye
Pētniecības nozare 1. Dabaszinātnes
Pētniecības apakšnozare 1.4. Ķīmija
Autori Elmārs Zariņš
Aivars Vembris
Elīna Misiņa
Valdis Kokars
Atslēgas vārdi DCM, laser dye, amorphous material
Anotācija Small D-π-A type organic molecules which contain 4H-pyran-4-ylidene (pyranylidene) fragment as the π-conjugation system - also well known as derivatives of 4-(dicyano-methylene)-2-methyl-6-[p-(dimethylamino)styryl]-4H-pyran (DCM) laser dye - show potential in OLED emission layer application studies, organic solid state lasers, organic solar cells and optical chemosensors. Additional incorporation of bulky triphenyl groups in such molecules enables the formation of amorphous structure in the solid state from volatile non-polar organic solvents, which could be of great manufacturing advantage. Six glassy DCM derivatives with 2-tert-butyl-6-methyl-4H-pyran-4-ylidene fragment as the backbone of the molecules are described in this report. Their light emission in solution as well as in thin solid films is in range from 600 nm to 700 nm, they are thermally stable (Td from 242oC to 312oC) and show glass transition (Tg) from 108oC up to 158oC. The amplified spontaneous emission threshold values of the neat films of the glassy DCM derivatives vary from 155 to 450 J/cm2. More detailed physical property relation with the material chemical structure will be discussed during the conference.
Atsauce Zariņš, E., Vembris, A., Misiņa, E., Kokars, V. Synthesis and Physical Properties of Glassy Triphenyl Group Containing Derivatives of DCM Laser Dye. No: 8th International Symposium on Flexible Organic Electronics and Nanotechnologies (ISFOE15): Book of Abstracts, Grieķija, Thesaloniki, 6.-9. jūlijs, 2015. Thesaloniki: 2015, 133.-133.lpp.
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