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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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Crisci, Alexandre
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Silver nanowire networks coated with a few nanometer thick aluminum nitride films for ultra-transparent and robust heating applicationscitations
- 2022Green upconversion improvement of TiO2 codoped Er3+-Yb3+ nanoparticles based thin film by adding ALD-Al2O3 for silicon solar cell applicationscitations
- 2020Synthesis of upconversion TiO2:Er3+-Yb3+ nanoparticles and deposition of thin films by spin coating techniquecitations
- 2020Improved critical temperature of superconducting plasma-enhanced atomic layer deposition of niobium nitride thin films by thermal annealingcitations
- 2019Superconducting properties of NbN thin films deposited by plasma enhanced atomic layer deposition using a metalorganic precursor
- 2018Aluminum nitride thin films deposited by hydrogen plasma enhanced and thermal atomic layer deposition
- 2016Al2O3 thin films deposited by thermal atomic layer deposition: Characterization for photovoltaic applicationscitations
- 2016Al2O3 thin films deposited by thermal atomic layer deposition: Characterization for photovoltaic applicationscitations
- 2016Growth of boron nitride films on w-AlN (0001), 4° off-cut 4H-SiC (0001), W (110) and Cr (110) substrates by Chemical Vapor Depositioncitations
- 2016An Atomistic View of the Incipient Growth of Zinc Oxide Nanolayerscitations
- 2015Superconducting properties of NbN thin films deposited by plasma enhanced atomic layer deposition using a metalorganic precursor
- 2014Niobium nitride thin films deposited by high temperature chemical vapor depositioncitations
- 2013Carbon corrosion and platinum nanoparticles ripening under open circuit potential conditionscitations
- 2010The effect of carbon nanolayers on wetting of alumina by NiSi alloyscitations
- 2006Raman Imaging and Kelvin Probe Microscopy for the Examination of the Heterogeneity of Doping in Polycrystalline Boron-Doped Diamond Electrodes
- 2005Micro-Raman scattering from undoped and phosphorus-doped (111) homoepitaxial diamond films: Stress imaging of crackscitations
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article
Raman Imaging and Kelvin Probe Microscopy for the Examination of the Heterogeneity of Doping in Polycrystalline Boron-Doped Diamond Electrodes
Abstract
The issue of the heterogeneity of boron doping in microcrystalline diamond films was addressed by four different methods: micro-Raman spectroscopy and Raman imaging, Kelvin probe force microscopy, conducting atomic force microscopy, and scanning electrochemical microscopy. The samples were commercially available films from Windsor Scientific, with an average boron concentration of about 5 × 10<sup>20</sup> cm<sup>-3</sup>. In agreement with previous works, all of the methods showed that the boron uptake was nonuniform across the surface of the electrode. Two different types of regions were evidenced, with metallic or semiconducting properties that were characterized with different types of Raman spectra. The line shape of these spectra was strongly dependent on the excitation wavelength. Local variations in electroactivity were evidenced by the SECM curves, which are related to the electronic properties of the individual grains, which, in turn, are governed by the boron content of the individual crystallites. In this study, two different micro-Raman imaging techniques were used that reveal the grain structure of the films: the images constructed from the diamond line intensity perfectly reproduced the optical image obtained by illuminating the sample in reflection. The method also allows detection of the presence of nondiamond carbon, especially in the metallic parts of the samples. Other spectral features (intensity of the boron-related broad lines, as well as the frequency and width of the diamond line) were used to construct images. In every case, the grain structure of the film was revealed, as well as twinning within individual crystallites. All approaches revealed that no enhanced doping or boron depletion occurred at the grain boundaries.