resumo
Difluomborates complexes based on 2'-hydroxyphenones were synthetized and their optoelectronic properties studied in both solution and solid state. These new dyes exhibit fluorescence emission in the visible region at similar wavelengths, intriguingly with higher quantum yields in the solid state than in solution. The enhanced emission in the solid state is rationalized on the basis of the crystal structure of the dyes.
palavras-chave
INDUCED EMISSION ENHANCEMENT; BODIPY DYES; PHOTOLUMINESCENCE PROPERTIES; LUMINESCENT PROPERTIES; FLUORESCENT EMITTERS; OPTICAL-PROPERTIES; BORON DIFLUORIDE; LIGHT-EMISSION; BF2 COMPLEXES; X-RAY
categoria
Chemistry, Applied; Engineering, Chemical; Materials Science, Textiles
autores
Vaz, PAAM; Rocha, J; Silva, AMS; Guieu, S
nossos autores
João Rocha
Prof. Catedrático
Patrícia Vaz
Estudante de doutoramento
Samuel Jacques André Guieu
Investigador JúniorProjectos
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Collaboratory for Emerging Technologies, CoLab (EMERGING TECHNOLOGIES)
agradecimentos
Thanks are due to University of Aveiro, FCT/MEC for the financial support to the QOPNA research Unit (FCT UID/QUI/00062/2019), the LAQV-REQUIMTE (UIDB/50006/2020) and the CICECO-Aveiro Institute of Materials (UIDB/50011/2020 & UIDP/50011/2020), through national funds and where applicable co-financed by the FEDER, within the PT2020 Partnership Agreement, and also to the Portuguese NMR Network. SG acknowledges the funding from national funds (OE), through FCT - Fundacao para a Ciencia e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19, and from the Integrated Programme of SR&TD pAGE -Protein aggregation Across the Lifespan (reference CENTRO-01-0145-FEDER-000003). P Vaz thanks the FCT for a doctoral grant (SFRH/BD/99809/2014). Professor Rute AS Ferreira (phantom-g, CICECO, Department of Physics, University of Aveiro) is acknowledged for the solid state quantum yield measurements.