Thermally induced ultrasound emission from printable semiconductor nanoparticles

The thermally induced ultrasound emissions from printable semiconductor nanoparticles produced by the application of input pulses are demonstrated on different substrates. Printing processes that use dispersion liquids containing nanoparticles make it possible to generate ultrasound waves on flexibl...

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Bibliographic Details
Published in:Journal of applied physics 2010-10, Vol.108 (7), p.076104-076104-3
Main Authors: Odagawa, Akihiro, Matsushita, Akio, Hashimoto, Masahiko
Format: Article
Language:English
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Summary:The thermally induced ultrasound emissions from printable semiconductor nanoparticles produced by the application of input pulses are demonstrated on different substrates. Printing processes that use dispersion liquids containing nanoparticles make it possible to generate ultrasound waves on flexible graphite sheets. We argue that the emission efficiency, which is the ratio of the ultrasound pressure to the input power, is greatly affected by the thermal effusivity of the nanoparticles, especially for the shell material in core-shell structured nanoparticles.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3483946