A Quantitative Investigation of Functionalized Glazing Stacks by Atom Probe Tomography

Advanced Materials Technologies, vol. 8

Abstract

Abstract Insulating glazings used in products for the building and automotive market consist of flat glass with low‐emissivity (low‐E) coatings. One challenge is to increase the infrared reflectance of the glazing stack while maintaining a high transmittance. This can only be achieved if the chemical interdiffusion between the deposited layers can be controlled and characterized down to the sub‐nanometer level. For that, atom probe tomography (APT) is employed in this work; technique which allows a precise quantification of the chemical interdiffusion in 3D and down to sometimes atomic level. However, the APT specimens prepared using the standard top‐to‐down configuration are prone to systematic fracturing due to strong differences in field evaporation between the layers involved in the glazing stack. The usage of an untypical cross‐section configuration has led to improved yields, but for the latter, artifacts need to be considered and quantified. In particular, the effect of artificial layer intermixing at interfaces due to crossover is studied. It is concluded that Ni diffuses in the Ag layer via grain boundaries already in the as‐deposited state. Hence, this work opens a new perspective in terms of quantification of interdiffusion at early stages, an important finding for low‐E glass applications.

Authors 8

1. Jacques Perrin Toinin corresponding Aachen I. Institute of Physics (IA)

   RWTH Aachen University · Institut des Matériaux, de Microélectronique et des Nanosciences de Provence

   Affiliation as printed

   I. Institute of Physics (IA) RWTH Aachen University 52074 Aachen Germany

   Institut des Matériaux, de Microélectronique et des Nanosciences de Provence

2. Constantinos Hatzoglou

   Norwegian University of Science and Technology

   Affiliation as printed

   Department of Materials Science and Engineering Norwegian University of Science and Technology Trondheim 7491 Norway

   Norwegian University of Science and Technology [Trondheim]

3. Justine Voronkoff

   Centre National de la Recherche Scientifique · Saint-Gobain Recherche Paris · Surface du Verre et Interfaces

   Affiliation as printed

   Surface du Verre et Interfaces (UMR 125) CNRS/Saint‐Gobain Recherche 39 quai Lucien Lefranc Aubervilliers 93300 France

   Surface du Verre et Interfaces

4. Hervé Montigaud

   Centre National de la Recherche Scientifique · Saint-Gobain Recherche Paris · Surface du Verre et Interfaces

   Affiliation as printed

   Surface du Verre et Interfaces (UMR 125) CNRS/Saint‐Gobain Recherche 39 quai Lucien Lefranc Aubervilliers 93300 France

   Surface du Verre et Interfaces

5. Denis Guimard

   Saint-Gobain Recherche Paris · Saint-Gobain (France)

   Affiliation as printed

   Saint‐Gobain Research Paris 39 quai Lucien Lefranc Aubervilliers 93300 France

   Saint-Gobain Recherche

6. Matthias Wuttig Aachen I. Institute of Physics (IA) Institute of Physical Metallurgy and Metal Physics [RWTH Aachen University] (France)

   RWTH Aachen University

   Affiliation as printed

   I. Institute of Physics (IA) RWTH Aachen University 52074 Aachen Germany

   Institute of Physical Metallurgy and Metal Physics [RWTH Aachen University]

7. François Vurpillot

   Centre National de la Recherche Scientifique · Université de Rouen Normandie · Groupe de Physique des Matériaux · Institut National des Sciences Appliquées Rouen Normandie

   Affiliation as printed

   Normandie Université UNIROUEN INSA Rouen CNRS Groupe de Physique des Matériaux Rouen 76000 France

   Groupe de physique des matériaux

8. Oana Cojocaru‐Mirédin corresponding Aachen I. Institute of Physics (IA)

   RWTH Aachen University · Max-Planck-Institut für Nachhaltige Materialien

   Affiliation as printed

   I. Institute of Physics (IA) RWTH Aachen University 52074 Aachen Germany

   Max-Planck-Institut für Eisenforschung GmbH