Solvent-Induced Galvanoluminescence of Metal-Organic Framework Electroluminescent Diodes
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Publication date
2016-05-26
Authors
Huang, Haonan
Beuchel, Michelle
Park, Yeseul
Baesjou, Patrick
Meskers, Stefan C J
De Leeuw, Dago M.
Asadi, Kamal
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Article
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taverne
Abstract
Alternating current (AC) electroluminescent diodes were fabricated from MOF-5, a metal organic framework consisting of tetrahedral [Zn4O]6+ units linked by 1,4-benzenedicarboxylate ligands. An additional insulating layer was incorporated to prevent formation of electrical shorts. The electroluminescence spectrum was dramatically red-shifted with respect to the photoluminescence spectrum. By deliberately varying trapped solvent molecules, we demonstrate that the light emission does not originate from MOF-5 but is due to galvanoluminescence, emission of weak optical radiation in the visible region that occurs during anodic oxidation of the Al top electrode in contact with electrolytes.
Keywords
Taverne, Physical and Theoretical Chemistry, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, General Energy
Citation
Huang, H, Beuchel, M, Park, Y, Baesjou, P J, Meskers, S C J, De Leeuw, D M & Asadi, K 2016, 'Solvent-Induced Galvanoluminescence of Metal-Organic Framework Electroluminescent Diodes', Journal of Physical Chemistry C, vol. 120, no. 20, pp. 11045-11048. https://doi.org/10.1021/acs.jpcc.6b03846