Puede utilizar el filtro de búsqueda del panel izquierdo para acotar los resultados
Tipo de publicación
Todos Libros Revistas
Palabras clave
Acceso DOI
Acceso digital CSIC
Datos técnicos
RevistaMicroporous and Mesoporous Materials

Anysotropic fluorescence materials: effect of the synthesis conditions over the incorporation, alignment and aggregation of Pyronine Y within MgAPO-5

Autores:Raquel García Salas, Luis Gómez-Hortiguela Sáinz, J. Perez-Pariente
Grupos de investigación:Tamices Moleculares
In order to prepare a highly fluorescent anisotropic material, different hydrothermal synthesis conditions have been studied in an attempt to favor the incorporation of the fluorescing dye Pyronine Y as monomeric species within the large-pore nanoporous aluminophosphate MgAPO-5 (AFI-type structure) during its crystallization (one-pot synthesis). Valuable information regarding the dye orientation, molecular distribution and aggregation behaviour inside the nanochannels of MgAPO-5 as a function of the gel composition has been obtained using the FLIM technique (Fluorescence Lifetime Imaging Microscopy). DFT-based calculations of the different dye species occluded within the nanochannels of MgAPO-5 allowed us to explain the properties of the newly synthesised composite materials. Our results show that although H-aggregates can fit within the MgAPO-5 channels, their presence can be reduced by varying the synthesis parameters, in particular by decreasing the template and PY concentration and increasing Mg content.
Palabras clave:Pyronine Y dye, MgAPO-5, Fluorescence, Encapsulation, Aggregation
logo de CSIC