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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Stewart, David
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Topics
Publications (9/9 displayed)
- 2022Low temperature plasma-enhanced atomic layer deposition of sodium phosphorus oxynitride with tunable nitrogen contentcitations
- 2022Characterisation of Ferritic to Austenitic Steel Functional Grading via Powder Hot Isostatic Pressing
- 2022Fundamental Aspects of Functional Grading via Powder Hot Isostatic Pressing - Development of microstructure and diffusional processescitations
- 2022Fundamental Aspects of Functional Grading via Powder Hot Isostatic Pressing - Development of microstructure and diffusional processescitations
- 2020The Interaction of Galling and Oxidation in 316L Stainless Steelcitations
- 2020The Interaction of Galling and Oxidation in 316L Stainless Steelcitations
- 2019The identification of a silicide phase and its crystallographic orientation to ferrite within a complex stainless steel
- 2018A crystal plasticity assessment of normally-loaded sliding contact in rough surfaces and gallingcitations
- 2017Evolution of grain boundary network topology in 316L austenitic stainless steel during powder hot isostatic pressingcitations
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article
Low temperature plasma-enhanced atomic layer deposition of sodium phosphorus oxynitride with tunable nitrogen content
Abstract
<jats:p> Atomic layer deposition (ALD) is a key technique in processing new materials compatible with complex architectures. While the processing space for Li-containing ALD thin films has been relatively well explored recently, the space for other alkali metal thin films (e.g., Na) is more limited. Thermal ALD and plasma-enhanced ALD (PEALD) lithium phosphorus oxynitride [Kozen et al., Chem. Mater. 27, 5324 (2015); Pearse et al., Chem. Mater. 29, 3740 (2017)] processes as well as analogous thermal sodium phosphorus oxynitride (NaPON) (Ref. 13) have been previously developed as conformal ALD solid state electrolytes. The main difference between the Na and Li processes is the alkali tert-butoxide precursor (AO<jats:sup>t</jats:sup>Bu, A = Li, Na). One would expect such an isoelectronic substitution with precursors that have similar structure and properties to correlate with a similarly behaved ALD process. However, this work demonstrates that the PEALD NaPON process unexpectedly behaves quite differently from its Li counterpart, introducing some insight into the development of Na-containing thin films. In this work, we demonstrate process development and characterization of an analogous low temperature (250 °C) PEALD of NaPON. This process demonstrates significant tunability of N coordination states by varying plasma nitrogen exposure time. Electrochemical characterization showed an ionic conductivity of 8.2 × 10<jats:sup>−9</jats:sup> S/cm at 80 °C and activation energy of 1.03 eV. This first instance of low temperature NaPON deposition by PEALD shows promise for further development and understanding of more versatile processing of Na thin film materials. </jats:p>