Effect of size on eutectic temperature lowering in Ag-Ge layered films
Keywords:
eutectic temperature, size effect, in situ TEM, the Ag-Ge binary system, thin films
Abstract
We report the results of the systematic experimental investigation of the eutectic temperature size dependence for Ag-Ge binary system. The Ag-Ge layered films have been produced by sequential deposition of components in vacuum at room temperature. The eutectic temperature TE as a function of Ag film thickness has been measured in a wide range of film thicknesses with use of in situ and ex situ TEM techniques. The significant lowering of TE with the film thickness reduction was registered. In particular, the lowest thickness of the Ag film required for the liquid phase formation at the metalsemiconductor interface was estimated to be ≈1.2 nm, while the onset temperature of this process was found to be ≈200 °C.
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References
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Shirinyan A. S., Gusak A. M., Wautelet M. Phase diagram versus diagram of solubility: What is the difference for nanosystems // Acta Materialia. — 2005. — Vol. 53. — P. 5025–5032.
Palatnik L. S., Boiko B. T. On the state diagram of aluminum-copper alloys in thin films // Phys. Met. Metallogr. — 1961. — Vol. 11. — P. 119–122.
Gladkikh N. T., Chizhik S. P., Larin V. I., Grigor’eva L. K., Sukhov V. N. Phase diagrams of binary alloys in condensed films // Soviet Phys. Dokl. — 1988. — Vol. 33. — P. 362–364.
Jesser W. A., Shiflet G. J., Allen G. L., Crawford J. L. Equilibrium phase diagrams of isolated nanophases // Mat. Res. Innovat. — 1999. — Vol. 2. — P. 211–216.
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Chen C. L., Lee J. G., Arakawa K., Mori H. Quantitative analysis on size dependence of eutectic temperature of alloy nanoparticles in the Ag-Pb system // Applied Physics Letters. — 2011. — Vol. 98. — P. 083108-1.
Lee J., Lee J., Tanaka T., Mori H., Penttilä K. Phase Diagrams of Nanometer-Sized Particles in Binary Systems // JOM. — 2005. — Vol. 57. — P. 56–59.
Lee J. G., Mori H. TEM Studies on Phase Stability in Nanometer-sized Alloy Particles // Solid
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Braidy N., Purdy G. R., Botton G. A. Equilibrium and stability of phase-separating Au-Pt nanoparticles // Acta Materialia. — 2008. — Vol. 56. — P. 5972–5983.
Sutter E. A., Sutter P. W. Size-Dependent Phase Diagram of Nanoscale Alloy Drops Used in Vapor-Liquid-Solid Growth of Semiconductor Nanowires // ACSNANO. — 2010. — Vol. 4. —P. 4943–4947.
Gladkikh N. T., Kryshtal A. P., Sukhov R. V. Contact melting in layered film systems of the eutectic type // Phys. Solid State. — 2010. — Vol. 52. — P. 633–640.
Kryshtal A. P., Sukhov R. V., Minenkov A. A. Critical thickness of contact melting in the Au/ Ge layered film system // Jalcom. — 2012. — Vol. 512. — P. 311–315.
Okamoto H. Phase Diagrams for Binary Alloys // ASM International. — United States, 2000.
Sinclair R., Konno T. J. In situ HREM: application to metal-mediated crystallization // Ultramicroscopy. — 1994. — Vol. 56 — P. 225–232.
Published
2017-02-24
How to Cite
Миненков, А. А., Богатыренко, С. И., & Крышталь, А. П. (2017). Effect of size on eutectic temperature lowering in Ag-Ge layered films. Journal of Surface Physics and Engineering, 13(3), 383 - 389. Retrieved from https://periodicals.karazin.ua/pse/article/view/8032
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Статті
У відповідності з типовим шаблоном.
