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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/20589

Title: Combustion deposition of MoO3 films: from fundamentals to OPV applications
Authors: Marchal, Wouter
De Dobbelaere, Christopher
Kesters, Jurgen
Bonneux, Gilles
Vandenbergh, Joke
Damm, Hanne
Junkers, Thomas
Maes, Wouter
D'Haen, Jan
Van Bael, Marlies K.
Hardy, An
Issue Date: 2015
Publisher: ROYAL SOC CHEMISTRY
Citation: RSC Advances, 5 (111), p. 91349-91362
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 organic free, crystalline MoO3 films to be obtained affording organic solar cell devices with promising current density-voltage characteristics.
Notes: [Marchal, Wouter; De Dobbelaere, Christopher; Bonneux, Gilles; Damm, Hanne; Van Bael, Marlies K.; Hardy, An] Hasselt Univ, Inst Mat Res Inorgan & Phys Chem, B-3500 Hasselt, Belgium. [Kesters, Jurgen; Vandenbergh, Joke; Junkers, Thomas; Maes, Wouter] Hasselt Univ, Inst Mat Res Organ & Biopolymer Chem, B-3500 Hasselt, Belgium. [Junkers, Thomas; Maes, Wouter; D'Haen, Jan; Van Bael, Marlies K.; Hardy, An] IMEC VZW, Div IMOMEC, B-3590 Diepenbeek, Belgium. [D'Haen, Jan] Hasselt Univ, Inst Mat Res Mat Phys, B-3500 Hasselt, Belgium.
URI: http://hdl.handle.net/1942/20589
DOI: 10.1039/c5ra18001e
ISI #: 000364057000034
ISSN: 2046-2069
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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