Journalartikel
Autorenliste: Meyer, LV; Vogt, J; Schäfer, H; Steinhart, M; Böttcher, R; Pöppl, A; Mai, M; Feldmann, C; Müller-Buschbaum, K
Jahr der Veröffentlichung: 2015
Seiten: 237-245
Zeitschrift: Inorganic Chemistry Frontiers
Bandnummer: 2
Heftnummer: 3
ISSN: 2052-1553
DOI Link: https://doi.org/10.1039/c4qi00184b
Verlag: Royal Society of Chemistry
Abstract:
The highly luminescent MOFs 3∞[Ce(Im)3ImH]·ImH, 3∞[Tb(Im)3], and the dense framework 3∞[Sr0.95Eu0.05(Im)2] (Im− = imidazolate-anion, C3N2H3−) were grown on nanostructured macroporous aluminium oxide (AAO) membranes. Thereby, luminescent coatings on the membranes were achieved. Three different growth processes unusual for MOFs were investigated and compared: a film growth process in situ to MOF formation from the linker melt, electride induction with solvated electrons, and chemical vapour deposition (CVD) to additionally utilize the gas phase. Deposition from the organic melt has proved to be a fast approach to achieve various film thicknesses of the luminescent frameworks. The electride-based approach offers excellent homogenization at an atomic level for the highest quantum yields of QY > 90% for 3∞[Sr0.95Eu0.05(Im)2] including the formation of barite rose analogous crystals prior to growth of a complete film on AAO membranes. For 3∞[Tb(Im)3] and 3∞[Ce(Im)3ImH]·ImH, deposition of bundles of crystals by CVD on AAO is possible while also maintaining the luminescence of the original MOFs but without complete layers. In order to elaborate the divalent character of europium, being the basis of the high efficiency of the luminescence, EPR studies were carried out on 3∞[Sr1−xEux(Im)2], x = 0.01, 0.05 and 1.
Zitierstile
Harvard-Zitierstil: Meyer, L., Vogt, J., Schäfer, H., Steinhart, M., Böttcher, R., Pöppl, A., et al. (2015) Organic melt, electride, and CVD induced in situ deposition of luminescent lanthanide imidazolate MOFs on nanostructured alumina, Inorganic Chemistry Frontiers, 2(3), pp. 237-245. https://doi.org/10.1039/c4qi00184b
APA-Zitierstil: Meyer, L., Vogt, J., Schäfer, H., Steinhart, M., Böttcher, R., Pöppl, A., Mai, M., Feldmann, C., & Müller-Buschbaum, K. (2015). Organic melt, electride, and CVD induced in situ deposition of luminescent lanthanide imidazolate MOFs on nanostructured alumina. Inorganic Chemistry Frontiers. 2(3), 237-245. https://doi.org/10.1039/c4qi00184b
