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Publikācija: Glassy 2-(1-Benzyl-2-Styryl-6-Methylpyridin-4(1H)-Ylidene) Fragment Containing 1H-Indene-1

Publication Type Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database
Funding for basic activity Research project
Defending: ,
Publication language English (en)
Title in original language Glassy 2-(1-Benzyl-2-Styryl-6-Methylpyridin-4(1H)-Ylidene) Fragment Containing 1H-Indene-1,3(2H)-Dione and Pyrimidine-2,4,6(1H,3H,5H)Trione Derivatives with Light-Emitting and Amplified Spontaneous Emission Properties
Field of research 2. Engineering and technology
Sub-field of research 2.4 Chemical engineering
Research platform Materials, Processes, and Technologies
Authors Elmārs Zariņš
Jūlija Perveņecka
Elīna Misiņa
Kristīne Lazdoviča
Kārlis Balodis
Aivars Vembris
Valdis Kokars
Keywords Laser dyes; amplified spontaneous emission; amorphous materials; molecular glasses; 4H-pyran-4-ylidene derivatives; 1H-pyridine compounds
Abstract A series of 2-(1-benzyl-2-(styryl)-6-methylpyridin-4(1H)-ylidene) fragment containing glassy organic compounds have been synthesized from relevant luminescent 4H-pyran-4-ylidene derivatives and investigated as potential solutionprocessable emitters. Glass transition temperatures of synthesized 1H-pyridine compounds are above 100oC with thermal stabilities higher than 260oC. In the solutions of dichloromethane their absorption bands are in the range from 350 nm to 500 nm with photoluminescence from 500 nm to 650 nm. In a contrary to the 4H-pyran-4-ylidene derivatives, the incorporation of various electron acceptor fragments within the 1H-pyridine fragment containing molecules only slightly influenced absorption and photoluminescence band shifts. Based on these compounds, neat spin-cast films were obtained and investigated as light-emitting mediums which show amplified spontaneous emission (ASE) with λmax in the range from 603 nm to 615 nm with ASE threshold values as low as 46 µJ/cm2. Synthesized 1H-pyridine derivatives show perspective to be applied as solution-processable components for light-amplification studies.
DOI: 10.1117/12.2553687
Hyperlink: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11357/113571K/Glassy-2-1-benzyl-2-styryl-6-methylpyridin-41H-ylidene/10.1117/12.2553687.full 
Reference Zariņš, E., Perveņecka, J., Misiņa, E., Lazdoviča, K., Balodis, K., Vembris, A., Kokars, V. Glassy 2-(1-Benzyl-2-Styryl-6-Methylpyridin-4(1H)-Ylidene) Fragment Containing 1H-Indene-1,3(2H)-Dione and Pyrimidine-2,4,6(1H,3H,5H)Trione Derivatives with Light-Emitting and Amplified Spontaneous Emission Properties. In: Proceedings of SPIE. Vol.11357: SPIE Photonics Europe 2020 Digital Forums, France, Strasbourg, 6-10 April, 2020. Bellingham: SPIE, 2020, Article number 113571K. ISBN 9781510639997. e-ISBN 9781510640009. ISSN 0277-786X. e-ISSN 1996-756X. Available from: doi:10.1117/12.2553687
Additional information Citation count:
  • Scopus  0
ID 30849