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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/21308

Title: To combust or not to combust, that's the question
Authors: Marchal, Wouter
De Dobbelaere, Christopher
Kesters, Jurgen
Bonneux, Gilles
Vandenbergh, Joke
D'Haen, Jan
Maes, Wouter
Junkers, Thomas
Van Bael, Marlies
Hardy, An
Issue Date: 2014
Citation: TAWN Thermische Analyse Werkgroep Nederland, Beneden Leeuwen, 28-11-2014
Abstract: A systematic study of a combustion precursor’s thermal decomposition pathway is undertaken, in both powders and thin films, to obtain insights in the various parameters influencing the combustion process. The study focuses on MoO3 as a hole transporting layer (HTL) for applications in organic photovoltaics (OPV). Via evolved gas analysis, it was found that fuel volatility occurs prior to the actual combustion reaction of the acetylacetonate based precursor, affecting the optimal oxidizer to fuel ratio. Moreover, close investigation showed that the high rate combustion reaction disappears with increasing surface to volume ratio. Nonetheless, thermal analysis performed on films suggests that with the right heating rate, an oxidative complete decomposition still occurs in films, exemplified by the film composition and specific morphological differences in the resulting layers and through analysis of the evolved components. Finally, the discussed synthesis route allows to obtain organic free, crystalline MoO3 films affording organic solar cell devices with promising current density-voltage characteristics.
URI: http://hdl.handle.net/1942/21308
Category: C2
Type: Conference Material
Appears in Collections: Research publications

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