Antonius Wilhelmus Maria De Laat
Philips
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Featured researches published by Antonius Wilhelmus Maria De Laat.
Journal of Materials Chemistry | 2008
Jolke Perelaer; Antonius Wilhelmus Maria De Laat; Chris E. Hendriks; Ulrich S. Schubert
In this contribution the curing behavior and conductivity development of several commercially available silver inks is discussed. In addition, the preparation and characterization of a silver particle ink that shows a curing temperature as low as 80 °C is described. Good to excellent conductivity values of 5 to 56% of bulk silver have been reached by using a very small amount of organic additives without any strong adsorbing groups such as amines, amides or mercapto groups. This low curing temperature opens new routes to produce conductive features on polymeric foils that have a low Tg, like PET. Furthermore, the temperature stability of silver tracks, prepared by inkjet printing different colloidal silver suspensions, was investigated. Hereto, the resistance was on-line measured during heating of the silver tracks, from room temperature to 650 °C.
Nanotechnology | 2009
Jolke Perelaer; Chris E. Hendriks; Antonius Wilhelmus Maria De Laat; Ulrich S. Schubert
A one-step process to fabricate conductive features on flexible polymer substrates by inkjet printing an organometallic silver ink directly onto a substrate that is heated to 130 degrees C is presented. This process led to the immediate sintering of the printed features. The samples were left for 5 min at elevated temperature, which resulted in conductive silver features with a resistivity of eight times the bulk silver value. The combination of this ink and the simultaneous printing/sintering process opens up routes for the direct fabrication of conductive features on common polymer substrates that could be applied, for example, in roll-to-roll production of flexible microelectronic systems.
Journal of Materials Chemistry | 2007
Antje M. J. van den Berg; Antonius Wilhelmus Maria De Laat; Patrick J. Smith; Jolke Perelaer; Ulrich S. Schubert
When an inkjet printed feature is formed, the behaviour of the ink on the substrate is of great importance. In order to investigate the possibility of increased control over the as-printed feature on a substrate, a TiO2 ink was formulated that gels above a certain temperature. The TiO2 particles in the ink are colloidally stabilised by an adsorbed layer of poly(vinyl methyl ether)-block-poly(vinyloxy-4-butyric acid) diblock copolymer. The thermal gelation, at about 37 °C, is due to the limited solubility of the poly(vinyl methyl ether) buoyant block in the continuous medium of the ink. Drops and lines with improved morphological control and resolution were achieved using the thermal gelation effect. Lines printed using this approach did not display deviations at their starts and ends; and bulges in the line could be avoided. Finally, defect-free straight lines could be printed on very hydrophobic surfaces, which is impossible with regular inks due to the de-wetting nature of such substrates.
Journal of Colloid and Interface Science | 1997
Antonius Wilhelmus Maria De Laat; Herman Schoo
Journal of Colloid and Interface Science | 1998
Antonius Wilhelmus Maria De Laat; Herman Schoo
Archive | 2011
Timon Rutger Grob; Rudolf Maria Jozef Voncken; Antonius Wilhelmus Maria De Laat; Judith Petra Huurdeman; Ronaldus Mathias Hubertus Steijvers; Lucas Johannes Anna Maria Beckers; Michael Johan Ferdinand Marie Ter Laak; Steven Ernest Franklin; Sean Scott Wheelhouse
Archive | 1997
Antonius Wilhelmus Maria De Laat; Hermannus F. M. Schoo
Archive | 2012
Simha Levene; Nicolaas Johannes Anthonius Van Veen; Lev Gregorian; Antonius Wilhelmus Maria De Laat; Gerardus Franciscus Cornelius Maria Lijten; Rafael Goshen
Archive | 2017
Antonius Wilhelmus Maria De Laat; Gerardus Franciscus Cornelis Maria Lijten; Lev Gregorian; Nicolaas Johannes Anthonius Van Veen; Rafael Goshen; Simha Levene
Archive | 2014
Marc Andre De Samber; Antonius Wilhelmus Maria De Laat; Esther Anna Wilhelminia Gerarda Janssen; Johannes Franciscus Maria Cillessen; Egbertus Reinier Jacobs; Adrianus Sempel; Theodorus Johannes Petrus Van Den Biggelaar; Boudewijn de Jong