پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شماره‌ها | 635 |
| تعداد مقالات | 9,313 |
| تعداد مشاهده مقاله | 67,881,106 |
| تعداد دریافت فایل اصل مقاله | 17,075,838 |
Morphological and multifractal studies of nanocrystalline Au films | ||
| Progress in Physics of Applied Materials | ||
| دوره 4، شماره 1 - شماره پیاپی 6، شهریور 2024، صفحه 27-35 اصل مقاله (726.75 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22075/ppam.2024.32997.1084 | ||
| نویسندگان | ||
| Mehrdad Ahmadi؛ Maryam Nasehnejad* | ||
| Technical and Vocational University (TVU), Department of physics, Tehran, Iran | ||
| تاریخ دریافت: 08 بهمن 1402، تاریخ بازنگری: 09 اسفند 1402، تاریخ پذیرش: 12 اسفند 1402 | ||
| چکیده | ||
| In this study, we investigated the surface morphology of Au coatings using atomic force microscopy (AFM). we aimed to understand the growth mechanisms and control the nano- and micro-structure of the films to achieve desired morphological properties. The study focused on films formed by the electrodeposition technique and examined the morphology evolution as a function of film thickness. To verify the crystalline structure of the films, X-ray diffraction (XRD) technique was employed. Statistical tests were conducted to confirm that the gold thin film surfaces under investigation exhibited multifractal properties. It is found that as the film thickness increased, the multifractality of the films became more pronounced, and the nonuniformity of the height probabilities also increased. Furthermore, it was observed that surfaces with greater roughness displayed larger nonlinearity and wider width of the multifractal spectrum. The results indicated that the multifractal spectrum had a right-hook shape, distinguishing between different film thicknesses even in small sizes of hundreds of nanometers. Overall, this study provides important insights into the surface morphology of Au coatings and highlights the significance of controlling growth mechanisms for fabricating flat Au films with desired morphological properties. These findings have implications for various applications in biological, electronic, and optical devices. | ||
| کلیدواژه‌ها | ||
| Surface roughness؛ Atomic force microscopy (AFM)؛ Electrodeposition؛ Multifractal analysis؛ Au films | ||
| مراجع | ||
|
[1] Yadav, R.P., Dwivedi, S., Mittal, A.K., Kumar, M. and Pandey, A.C., 2012. Fractal and multifractal analysis of LiF thin film surface. Applied Surface Science, 261, pp.547-553.
[2] Noel, J.G., 2016. Review of the properties of gold material for MEMS membrane applications. IET Circuits, Devices & Systems, 10(2), pp.156-161.
[3] Ayoub, S. and Beaulieu, L.Y., 2013. The surface morphology of thin Au films deposited on Si (001) substrates by sputter deposition. Thin solid films, 534, pp.54-61.
[4] Gaur, S.P., Kothari, P., Maninder, K., Kumar, P., Rangra, K. and Kumar, D., 2017. Development and integration of near atmospheric N2 ambient sputtered Au thin film for enhanced infrared absorption. Infrared Physics & Technology, 82, pp.154-160.
[5] Cao, X., Peng, D., Wu, C., He, Y., Li, C., Zhang, B., Han, C., Wu, J., Liu, Z. and Huang, Y., 2021. Flexible Au micro-array electrode with atomic-scale Au thin film for enhanced ethanol oxidation reaction. Nano Research, 14, pp.311-319.
[6] Chen, P.J. and Hsueh, C.H., 2021. Imprintable Au-based thin-film metallic glasses with different crystallinities for surface-enhanced Raman scattering. The Journal of Physical Chemistry C, 125(43), pp.23983-23990.
[7] Lequeux, M., Mele, D., Venugopalan, P., Gillibert, R., Boujday, S., Knoll, W., Dostalek, J. and Lamy de la Chapelle, M., 2020. Plasmonic properties of gold nanostructures on gold film. Plasmonics, 15, pp.1653-1660.
[8] Elias, J., Gizowska, M., Brodard, P., Widmer, R., Dehazan, Y., Graule, T., Michler, J. and Philippe, L., 2012. Electrodeposition of gold thin films with controlled morphologies and their applications in electrocatalysis and SERS. Nanotechnology, 23(25), p.255705.
[9] Bechelany, M., Brodard, P., Elias, J., Brioude, A., Michler, J. and Philippe, L., 2010. Simple synthetic route for SERS-active gold nanoparticles substrate with controlled shape and organization. Langmuir, 26(17), pp.14364-14371.
[10] Bond, G.C. and Thompson, D.T., 1999. Catalysis by gold. Catalysis Reviews, 41(3-4), pp.319-388.
[11] Ruffino, F., Grimaldi, M.G., Giannazzo, F., Roccaforte, F. and Raineri, V., 2009. Atomic force microscopy study of the kinetic roughening in nanostructured gold films on SiO 2. Nanoscale research letters, 4, pp.262-268.
[12] Ruffino, F. and Grimaldi, M.G., 2018. Morphological characteristics of Au films deposited on Ti: a combined SEM-AFM study. Coatings, 8(4), p.121.
[13] Nasehnejad, M. and Nabiyouni, G., 2019. Studying magnetic properties and surface roughness evolution of Ag-Co electrodeposited films. Journal of Magnetism and Magnetic Materials, 490, p.165501.
[14] Wadullah, H.M., Ali, M.H. and Abdulrazzaq, T.K., 2022. Structure, characteristics and corrosion behaviour of gold nanocoating thin film for biomedical applications. Materials Research, 25, p.e20210526.
[15] Sun, X., Fu, Z. and Wu, Z., 2002. Fractal processing of AFM images of rough ZnO films. Materials Characterization, 48(2-3), pp.169-175.
[16] Nasehnejad, M., Shahraki, M.G. and Nabiyouni, G., 2016. Atomic force microscopy study, kinetic roughening and multifractal analysis of electrodeposited silver films. Applied Surface Science, 389, pp.735-741.
[17] Zhang, Y.H., Bai, B.F., Chen, J.B., Shen, C.Y. and Li, J.Q., 2010. Multifractal analysis of fracture morphology of poly (ethylene-co-vinyl acetate)/carbon black conductive composite. Applied Surface Science, 256(23), pp.7151-7155.
[18] Chen, Z.W., Lai, J.K.L. and Shek, C.H., 2005. Multifractal spectra of scanning electron microscope images of SnO2 thin films prepared by pulsed laser deposition. Physics Letters A, 345(1-3), pp.218-223.
[19] Chaudhari, A., Yan, C.C.S. and Lee, S.L., 2003. Multifractal scaling analysis of autopoisoning reactions over a rough surface. Journal of Physics A: Mathematical and General, 36(13), p.3757.
[20] Suryanarayana, C., Norton, M. G.,1999, X-ray diffraction, New York, Plenum Press.
[21] Yadav, R.P., Singh, U.B., Mittal, A.K. and Dwivedi, S., 2014. Investigating the nanostructured gold thin films using the multifractal analysis. Applied Physics A, 117, pp.2159-2166.
[22] Wang, W., Li, A., Zhang, X. and Yin, Y., 2011. Multifractality analysis of crack images from indirect thermal drying of thin-film dewatered sludge. Physica A: Statistical Mechanics and its Applications, 390(14), pp.2678-2685. | ||
|
آمار تعداد مشاهده مقاله: 173 تعداد دریافت فایل اصل مقاله: 197 |
||