info:eu-repo/semantics/article
SURMOF Devices Based on Heteroepitaxial Architectures with White-Light Emission and Luminescent Thermal-Dependent Performance
Fecha
2020-12Registro en:
Chen, Dong Hui; Sedykh, Alexander; Gomez, Germán Ernesto; Neumeier, Beatrice Lilli; Santos, Jaciara C. C.; et al.; SURMOF Devices Based on Heteroepitaxial Architectures with White-Light Emission and Luminescent Thermal-Dependent Performance; Wiley-VCH; Advanced Materials Interfaces; 7; 21; 12-2020; 1-8
2196-7350
2196-7350
CONICET Digital
CONICET
Autor
Chen, Dong Hui
Sedykh, Alexander
Gomez, Germán Ernesto
Neumeier, Beatrice Lilli
Santos, Jaciara C. C.
Gvilava, Vasily
Maile, Ruben
Feldmann, Claus
Wöll, Christof
Janiak, Christoph
Müller Buschbaum, Klaus
Redel, Engelbert
Resumen
A new set of Ln-MOF (lanthanide-metal-organic framework) thin films, known as Ln-SURMOFs (surface-supported MOFs), is fabricated with a layer-by-layer, in order to generate solid-state white-lighting devices. A three-component approach is carried out for a rational combination of red, green, and blue (RGB) emitting Eu3+, Tb3+, and Gd3+ containing layers in order to achieve white-light emission. The Ln-SURMOFs are fully characterized by powder X-ray diffraction, infrared reflection–absorption spectroscopy, scanning electron microscopy, and photoluminescence spectroscopy (excitation-emission and chromaticity determination according to Commission International de l'Eclairage, CIE). The devices show CIE x,y coordinates of almost ideal white light (0.331, 0.329), as well as a correlated color temperature of 5570 K. Besides, the temperature dependent performance of the RGB-SURMOFs is studied at room temperature and at 77 K.