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Tuning Temperature and Size of Nanodots and Nanodot Arrays

Abstract : By using scanning thermal microscopy, it is shown that nanoscale constrictions in metallic microwires deposited on an oxidized silicon substrate can be tuned in terms of temperature and confinement size. High‐resolution temperature maps indeed show that submicrometer hot spots and hot‐spot arrays are obtained when the SiO2 layer thickness decreases below 100 nm. When the SiO2 thickness becomes larger, heat is less confined in the vicinity of the constrictions and laterally spreads all along the microwire. These results are in good agreement with numerical simulations, which provide dependences between silica‐layer thickness and nanodot shape and temperature.
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Submitted on : Wednesday, March 9, 2016 - 6:32:43 PM
Last modification on : Monday, September 21, 2020 - 11:52:14 AM

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E Saïdia, N Babinet, L. Lalouat, J. Lesueur, L. Aigouy, et al.. Tuning Temperature and Size of Nanodots and Nanodot Arrays. Small Press, Small Press, 2011, 7 (2), pp.259-264. ⟨10.1002/smll.201001476⟩. ⟨hal-01285842⟩

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