resumo
A heterotetranuclear Na2Eu2 complex with uncommon photo-luminescence properties is reported. The complex exhibits good emission efficiency at ambient temperature, coupled with strong temperature dependence of the emission intensity and lifetime in the 273-333 K range, all of which are key features for non-contact luminescence-based thermometers capable of sensing and imaging temperatures in the physiological range.
palavras-chave
HETEROMETALLIC COORDINATION POLYMERS; ORGANIC FRAMEWORKS; LANTHANIDE; EUROPIUM(III); EMISSION; IONS; THERMOMETER; MAGNETISM; SILICA; NA(I)
categoria
Chemistry
autores
Bruno, SM; Ananias, D; Paz, FAA; Pillinger, M; Valente, AA; Carlos, LD; Goncalves, IS
nossos autores
Anabela Tavares Aguiar Valente
Investigador Principal
Duarte Ananias
Investigador Auxiliar
Filipe Alexandre Almeida Paz
Investigador Principal
Isabel Maria de Sousa Gonçalves
Professor associado
Luís Carlos
Professor Catedrático
Martyn Pillinger
Investigador Principal
Sofia M. Bruno
Investigador AuxiliarGrupos
G1 - Materiais Porosos e Nanossistemas
G2 - Materiais Fotónicos, Eletrónicos e Magnéticos
G4 - Materiais Renováveis e Economia Circular
Projectos
Use of molecular containers to modify metallocene-based catalysts (PTDC/QEQ-SUP/1906/2012)
agradecimentos
This work was partly financed by FEDER (Fundo Europeu de Desenvolvimento Regional) through COMPETE (Programa Operacional Factores de Competitividade) and by national funds through the FCT (Fundacao para a Ciencia e a Tecnologia) within the project CICECO - FCOMP-01-0124-FEDER-037271 (FCT ref. PEst-C/CTM/LA0011/2013) and FCOMP-01-0124-FEDER-029779 (FCT ref. PTDC/QEQ-SUP/1906/2012). The FCT is gratefully acknowledged for financial support towards the purchase of the single-crystal diffractometer and for a post-doctoral grant to S.M.B. (SFRH/BPD/46473/2008).