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HAPPY Dyes as Light Amplification Media in Thin Films by Elmars Zarins; Julija Pervenecka; Elina Misina; Oleksandr Bezvikonnyi; Aivars Vembris; Karlis Balodis; Dmytro Volyniuk; Juozas V. Grazulevicius; Valdis Kokars is a Chemistry article available to read on EtoBox.
What is HAPPY Dyes as Light Amplification Media in Thin Films about?
A series of 1 morphous tri-henyl ridine (HAPPY) dyes have been synthesized from luminescent triphenyl-group-containing 2-methyl-6-styryl-substituted-4-pyran-4-ylidene derivatives in reactions with benzylamine and investigated for suitability as solution-processable light-emitting medium components in thin films for amplified spontaneous emission (ASE). Conversion of a 4-pyrane ring into a 1-pyridine fragment enables aggregation-induced emission enhancement (AIEE) behavior in the target products and slightly increases thermal stability, glass transition temperatures, and ASE efficiency with PLQY up to 15% and ASE thresholds as low as 46 μJ/cm in neat spin-cast films, although thermal and photophysical properties are mostly dominated by the incorporated electron acceptors. Continued lasing parameter efficiency parameter improvement experiments revealed that no further optimization of HAPPY dyes by doping in polymer matrixes is required as the amplified spontaneous emission thresholds were lowest in pure neat films due to the AIEE phenomenon.
Who reads HAPPY Dyes as Light Amplification Media in Thin Films?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Elmars Zarins; Julija Pervenecka; Elina Misina; Oleksandr Bezvikonnyi; Aivars Vembris; Karlis Balodis; Dmytro Volyniuk; Juozas V. Grazulevicius; Valdis Kokars
- Publisher
- American Chemical Society (ACS)
- Published
- 2021
- Language
- EN
- Field
- Chemistry (Physical Sciences)