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Application of the specific thermal properties of Ag nanoparticles to high-resolution metal patterning

Title
Application of the specific thermal properties of Ag nanoparticles to high-resolution metal patterning
Authors
Son Y.Yeo J.Ha C.W.Lee J.Hong S.Nam K.H.Yang D.-Y.Ko S.H.
Ewha Authors
남구현
Issue Date
2012
Journal Title
Thermochimica Acta
ISSN
0040-6031JCR Link
Citation
vol. 542, pp. 52 - 56
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Metal nanoparticles exhibit specific electronic, chemical and optical properties due to the thermodynamic size effect, which cannot be observed in bulk materials. Ag NPs show size dependent melting temperature depression phenomena. In this study, the thermal sintering behavior of the self-assembled monolayer protected Ag NPs has been observed using in situ transmission electron microscopy. The thermal characteristics of the Ag NPs have also been examined with a thermogravimetric analysis, a differential scanning calorimetry and a thermal conductivity measurement. These assessments have shown that the melting of the Ag NPs starts at 150 °C, which is much lower than the melting temperature of bulk silver (960 °C). The measured thermal conductivity of the Ag NPs (0.37 W/(m K)) is also lower than that of bulk silver (429 W/(m K)). These specific thermal properties of the Ag NPs can be applied to a low-temperature and a high-resolution direct-metal patterning process. © 2012 Elsevier B.V.
DOI
10.1016/j.tca.2012.03.004
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연구기관 > 초기우주과학기술연구소 > Journal papers
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