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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, Tanja MAES, Wouter D'HAEN, Jan VAN BAEL, Marlies HARDY, An |
Issue Date: | 2015 | Publisher: | ROYAL SOC CHEMISTRY | Source: | 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. | Document URI: | http://hdl.handle.net/1942/20589 | e-ISSN: | 2046-2069 | DOI: | 10.1039/c5ra18001e | ISI #: | 000364057000034 | Rights: | This journal is © The Royal Society of Chemistry 2015 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2016 |
Appears in Collections: | Research publications |
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