Thermal characterization of morphologically diverse copper phthalocyanine thin layers by scanning thermal microscopy
| Autor: | Georges Hamaoui, J. S. Antoniow, Nicolas Horny, Justyna Juszczyk, Mihai Chirtoc, Dominika Trefon-Radziejewska, Maciej Krzywiecki |
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| Přispěvatelé: | Silesian University of Technology, Electronique, Systèmes de communication et Microsystèmes (ESYCOM), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel, Institut de Thermique, Mécanique, Matériaux (ITheMM), Université de Reims Champagne-Ardenne (URCA), URCA - UFR Sciences exactes et naturelles (URCA UFR SEN) |
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Thin layers Materials science 02 engineering and technology Scanning thermal microscopy 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Grain size Electronic Optical and Magnetic Materials Characterization (materials science) chemistry.chemical_compound chemistry Physical vapor deposition 0103 physical sciences Surface roughness Phthalocyanine Composite material [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 0210 nano-technology Porosity Instrumentation ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Ultramicroscopy Ultramicroscopy, Elsevier, 2022, 233, pp.113435. ⟨10.1016/j.ultramic.2021.113435⟩ |
| ISSN: | 1879-2723 0304-3991 |
| DOI: | 10.1016/j.ultramic.2021.113435⟩ |
| Popis: | Morphologically diverse copper phthalocyanine (CuPc) thin layers were thermally characterized by Scanning Thermal Microscopy (SThM). The organic layers with thicknesses below 1 µm were deposited by physical vapor deposition in a high vacuum on the N-BK 7 glass substrates. Four set of samples were fabricated and studied. Atomic Force Microscopy imaging revealed strong differences in the surface roughness, mean grain size/height, as well as distances between grains for the CuPc layers. For quantitative thermal investigations, three active SThM operating modes were applied using either a Wollaston thermal probe (ThP) or KNT ThP as thermal probe heated with a DC, an AC (3ω-SThM) current or their combination (DC/AC SThM). Meanwhile, qualitative analysis was performed by thermal surface imaging. The results of this study revealed a correlation between the morphology and the local thermophysical properties of the examined CuPc thin layers. It was found that the heat transport properties in such layers will deteriorate with the increase of the surface roughness and porosity. Those results can be a valuable contribution to the further development of phthalocyanine-based devices. |
| Databáze: | OpenAIRE |
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