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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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Hämäläinen, Jani Marko Antero
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2020Van der Waals epitaxy of continuous thin films of 2D materials using atomic layer deposition in low temperature and low vacuum conditionscitations
- 2019How insignificant modifications of photocatalysts can significantly change their photocatalytic activitycitations
- 2018Rhenium Metal and Rhenium Nitride Thin Films Grown by Atomic Layer Depositioncitations
- 2018Atomic Layer Deposition of Rhenium Disulfidecitations
- 2016Atomic Layer Deposition of Metal Phosphates and Lithium Silicates
- 2016Atomic Layer Deposition of Iridium Thin Films Using Sequential Oxygen and Hydrogen Pulsescitations
- 2016Nucleation and conformality of iridium and iridium oxide thin films grown by atomic layer depositioncitations
- 2014Atomic Layer Deposition of Noble Metals and Their Oxidescitations
- 2013Low temperature atomic layer deposition of noble metals using ozone and molecular hydrogen as reactantscitations
- 2012Study of amorphous lithium silicate thin films grown by atomic layer depositioncitations
- 2012Lithium Phosphate Thin Films Grown by Atomic Layer Depositioncitations
- 2012Atomic layer deposited iridium oxide thin film as microelectrode coating in stem cell applicationscitations
- 2011Iridium metal and iridium oxide thin films grown by atomic layer deposition at low temperaturescitations
- 2011Atomic Layer Deposition and Characterization of Aluminum Silicate Thin Films for Optical Applicationscitations
- 2010pH electrode based on ALD deposited iridium oxidecitations
- 2009Metallic Ir, IrO2 and Pt Nanotubes and Fibers by Electrospinning and Atomic Layer Deposition
- 2009Study on atomic layer deposition of amorphous rhodium oxide thin filmscitations
- 2009Atomic layer deposition of iridium thin films by consecutive oxidation and reduction stepscitations
- 2008Atomic layer deposition of iridium oxide thin films from Ir(acac)₃ and ozonecitations
- 2008Atomic layer deposition of platinum oxide and metallic platinum thin films from Pt(acac)₂ and ozonecitations
Places of action
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article
Nucleation and conformality of iridium and iridium oxide thin films grown by atomic layer deposition
Abstract
Nucleation and conformality are important issues, when depositing thin films for demanding applications. In this study, iridium and iridium dioxide (IrO 2 ) films were deposited by atomic layer deposition (ALD), using five different processes. Different reactants, namely, O 2 , air, consecutive O 2 and H 2 (O 2 +H 2 ), and consecutive O 3 and H 2 (O 3 +H 2 ) pulses were used with iridium acetylacetonate [Ir(acac) 3 ] to deposit Ir, while IrO 2 was deposited using Ir(acac) 3 and O 3 . Nucleation was studied using a combination of methods for film thickness and morphology evaluation. In conformality studies, microscopic lateral high-aspect-ratio (LHAR) test structures, specifically designed for accurate and versatile conformality testing of ALD films, were used. The order of nucleation, from the fastest to the slowest, was O 2 +H 2 > air ≈ O 2 > O 3 > O 3 +H 2 , whereas the order of conformality, from the best to the worst, was O 3 +H 2 > O 2 +H 2 > O 2 > O 3 . In the O 3 process, a change in film composition from IrO 2 to metallic Ir was seen inside the LHAR structures. Compared to the previous reports on ALD of platinum-group metals, most of the studied processes showed good to excellent results.