Journal article

Organic melt, electride, and CVD induced in situ deposition of luminescent lanthanide imidazolate MOFs on nanostructured alumina


Authors list: Meyer, LV; Vogt, J; Schäfer, H; Steinhart, M; Böttcher, R; Pöppl, A; Mai, M; Feldmann, C; Müller-Buschbaum, K

Publication year: 2015

Pages: 237-245

Journal: Inorganic Chemistry Frontiers

Volume number: 2

Issue number: 3

ISSN: 2052-1553

DOI Link: https://doi.org/10.1039/c4qi00184b

Publisher: 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.



Citation Styles

Harvard Citation style: 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 Citation style: 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


Last updated on 2025-21-05 at 15:48