Tunable Energy-Transfer Process in Heterometallic MOF Materials Based on 2,6-Naphthalenedicarboxylate: Solid-State Lighting and Near-Infrared Luminescence Thermometry
Autor: | Luís D. Carlos, Gervasio Gomez, Alexandre M. P. Botas, Jeffrey S. Ovens, Alexandros A. Kitos, Galo J. A. A. Soler-Illia, María C. Bernini, Riccardo Marin, Albano N. Carneiro Neto, Muralee Murugesu |
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Rok vydání: | 2020 |
Předmět: |
Lanthanide
Materials science General Chemical Engineering Energy transfer 02 engineering and technology 010402 general chemistry 7. Clean energy 01 natural sciences Coordination complex law.invention Ion THERMOMETRY purl.org/becyt/ford/1 [https] law purl.org/becyt/ford/1.4 [https] Materials Chemistry NIR-LUMINESCENCE Porosity Near infrared luminescence chemistry.chemical_classification General Chemistry LANTHANIDES 021001 nanoscience & nanotechnology METAL ORGANIC FRAMEWORKS 0104 chemical sciences Solid-state lighting chemistry Scientific method Physical chemistry 0210 nano-technology |
Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
ISSN: | 1520-5002 0897-4756 |
Popis: | Trivalent lanthanide ions (Ln3+) are used to prepare a plethora of coordination compounds, with metal-organic frameworks (MOFs) being among the most sought-after in recent years. The porosity of Ln-MOFs is often complemented by the luminescence imparted by the metal centers, making them attractive multifunctional materials. Here, we report a class of three-dimensional (3D) MOFs obtained from a solvothermal reaction between 2,6-naphthalenedicarboxylic acid (H2NDC) and lanthanide chlorides, yielding three types of compounds depending on the chosen lanthanide: [LnCl(NDC)(DMF)] for Ln3+ = La3+, Ce3+, Pr3+, Nd3+, Sm3+ (type 1), [Eu(NDC)1.5(DMF)]·0.5DMF (type 2), and [Ln2(NDC)3(DMF)2] for Ln3+ = Tb3+, Dy3+, Y3+, Er3+, Yb3+ (type 3). Photoluminescent properties of selected phases were explored at room temperature. The luminescence thermometry capability of Yb3+-doped Nd-MOF was fully investigated in the 15-300 K temperature range under 365 and 808 nm excitation. To describe the optical behavior of the isolated MOFs, we introduce the total energy-transfer balance model. Therein, the sum of energy-transfer rates is considered along with its dependence on the temperature - the sign, magnitude, and variation of this parameter - permitting to afford a thorough interpretation of the observed behavior of the luminescent species of all materials presented here. The combination of novel theoretical and experimental studies presented herein to describe energy-transfer processes in luminescent materials can pave the way toward the design of MOF-based chemical and physical sensors working in an optical range of interest for biomedical applications. Fil: Gomez, Germán Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina Fil: Marin, Riccardo. University of Ottawa; Canadá Fil: Carneiro Neto, Albano N.. Universidade de Aveiro; Portugal Fil: Botas, Alexandre M. P.. Universidade de Aveiro; Portugal Fil: Ovens, Jeffrey. University of Ottawa; Canadá Fil: Kitos, Alexandros A.. University of Ottawa; Canadá Fil: Bernini, Maria Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina Fil: Carlos, Luís D.. Universidade de Aveiro; Portugal Fil: Soler Illia, Galo Juan de Avila Arturo. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Murugesu, Muralee. University of Ottawa; Canadá |
Databáze: | OpenAIRE |
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