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Title: | Effectiveness of Ligand Denticity-Dependent Oxidation Protection in Copper MOD Inks | Authors: | MARCHAL, Wouter Mattelaer, Felix Van Hecke, Kristof Briois, Valérie Longo, Alessandro REENAERS, Dieter ELEN, Ken Detavernier, Christophe DEFERME, Wim VAN BAEL, Marlies HARDY, An |
Advisors: | An, Hardy Van Bael, Marlies |
Issue Date: | 2019 | Publisher: | AMER CHEMICAL SOC | Source: | LANGMUIR, 35 (49) , p. 16101 -16110 | Abstract: | The recent cost-driven transition from silver- to copper-based inks for printing on flexible substrates is connected with new key challenges. Given the high oxidation sensitivity of copper inks before, during, and after the curing process, the conductivity and thereby the device performance can be affected. Strategies to limit or even avoid this drawback include the development of metal organic decomposition (MOD) inks with selected "protective" ligands. In this study, the influence of the ligand on the oxide formation during the ink decomposition process is described using a wide variety of in situ characterization techniques. It is demonstrated that bidentate ligands provide an improved oxidation barrier, although the copper preservation mechanism has its limits: oxygen can interfere in every reduction pathway depending on the curing duration and atmospheric conditions. The generated insights can be applied in the further evolution toward ambient-curable copper MOD inks. | Document URI: | http://hdl.handle.net/1942/30340 | Link to publication/dataset: | https://pubs.acs.org/doi/abs/10.1021/acs.langmuir.9b02281 | ISSN: | 0743-7463 | e-ISSN: | 1520-5827 | DOI: | 10.1021/acs.langmuir.9b02281 | ISI #: | WOS:000502682900004 | Rights: | 2019 American Chemical Societ | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
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acs.langmuir.9b02281.pdf Restricted Access | Published version | 5.03 MB | Adobe PDF | View/Open Request a copy |
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