Experimental studies on thermal and electrical properties of platinum nanofilms

Xing Zhang; Qing Guang Zhang; Bing Yang Cao; Motoo Fujii; Koji Takahashi; Tatsuya Ikuta

doi:10.1088/0256-307X/23/4/048

Experimental studies on thermal and electrical properties of platinum nanofilms

Xing Zhang, Qing Guang Zhang, Bing Yang Cao, Motoo Fujii, Koji Takahashi, Tatsuya Ikuta

Thermophysics and Fluid Mechanics

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We experimentally studied the in-plane thermal and electrical properties of a suspended platinum nanofilm in thickness of 15nm. The measured results show that the in-plane thermal conductivity, the electrical conductivity and the resistance-temperature coefficient of the studied nanofilm are much less than those of the bulk material, while the Lorenz number is greater than the bulk value. Comparing with the results reported previously for the platinum nanofilm in thickness of 28nm, we further find that the in-plane thermal conductivity, the electrical conductivity and the resistance-temperature coefficient decrease with the decreasing thickness of the nanofilm, while the Lorenz number increases with the decreasing thickness of the nanofilm. These results indicate that strong size effects exist on the in-plane thermal and electrical properties of platinum nanofilms.

Original language	English
Pages (from-to)	936-938
Number of pages	3
Journal	Chinese Physics Letters
Volume	23
Issue number	4
DOIs	https://doi.org/10.1088/0256-307X/23/4/048
Publication status	Published - Apr 1 2006

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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abstract = "We experimentally studied the in-plane thermal and electrical properties of a suspended platinum nanofilm in thickness of 15nm. The measured results show that the in-plane thermal conductivity, the electrical conductivity and the resistance-temperature coefficient of the studied nanofilm are much less than those of the bulk material, while the Lorenz number is greater than the bulk value. Comparing with the results reported previously for the platinum nanofilm in thickness of 28nm, we further find that the in-plane thermal conductivity, the electrical conductivity and the resistance-temperature coefficient decrease with the decreasing thickness of the nanofilm, while the Lorenz number increases with the decreasing thickness of the nanofilm. These results indicate that strong size effects exist on the in-plane thermal and electrical properties of platinum nanofilms.",

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T1 - Experimental studies on thermal and electrical properties of platinum nanofilms

AU - Zhang, Xing

AU - Zhang, Qing Guang

AU - Cao, Bing Yang

AU - Fujii, Motoo

AU - Takahashi, Koji

AU - Ikuta, Tatsuya

PY - 2006/4/1

Y1 - 2006/4/1

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AB - We experimentally studied the in-plane thermal and electrical properties of a suspended platinum nanofilm in thickness of 15nm. The measured results show that the in-plane thermal conductivity, the electrical conductivity and the resistance-temperature coefficient of the studied nanofilm are much less than those of the bulk material, while the Lorenz number is greater than the bulk value. Comparing with the results reported previously for the platinum nanofilm in thickness of 28nm, we further find that the in-plane thermal conductivity, the electrical conductivity and the resistance-temperature coefficient decrease with the decreasing thickness of the nanofilm, while the Lorenz number increases with the decreasing thickness of the nanofilm. These results indicate that strong size effects exist on the in-plane thermal and electrical properties of platinum nanofilms.

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