2006 Fiscal Year Final Research Report Summary
Nano-scale Thermophysical Properties Monitoring and Thermal System Design in Nano/Micro region
| Project/Area Number |
16206023
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Thermal engineering
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| Research Institution | Keio University |
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Principal Investigator |
NAGASAKA Yuji Keio Univ., Faculty of Science and Technology, Professor, 理工学部, 教授 (40129573)
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| Co-Investigator(Kenkyū-buntansha) |
SAIKI Toshiharu Keio Univ., Faculty of Science and Technology, Associate Professor, 理工学部, 助教授 (70261196)
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| Project Period (FY) |
2004 – 2006
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| Keywords | Nano / micro thermal engineering / Thermal properties / Nano properties / Laser measurement technique / Heat and material transfer / Near-field optics / Near-field fluorescence spectroscopy / Thermal properties real-time monitoring |
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| Research Abstract |
The aim of this project is the development of novel optical techniques to measure thermophysical properties, and to study on a system design in nano/micro region. The results are summarized as follows ;
"Development of high-resolution and high-sensitivity measurement systems of nano/micro-scale thermophysical properties"
(1)A novel optical technique for measuring the nano-scale thermophysical properties (i.e. thermal conductivity and thermal diffusivity) using near-field optical thermoreflectance and near-field fluorescence, which has nano-scale spatial resolution beyond the optical diffraction limit, has been developed. The spatial resolution is estimated to be approximately 100 nm.
(2)For the measurement of molecular diffusion phenomena in liquid, a high-sensitive and high-reproducible technique using laser-induced thermal grating has been proposed.
(3)By adopting high-speed and high-sensitive measurement system, the real-time monitoring of thermal properties enabling the system-control in situ can be realized.
"Thermal system design of nano/micro devices"
(1)The nano-scale temperature distribution of self-assembled monolayer of Cy3 fluorophore and quantum-dots were successfully measured using near-field fluorescence thermometry.
(2)The molecular diffusion phenomena of fullerene in solution and multicomponent liquid for sophisticated polymer were observed by using laser-induced thermal grating. Moreover, the concentration dependence of diffusion coefficient was revealed.
(3)The thermal properties of nano/micro devices such as nematic liquid crystal, Bi_2Te_3 thin films and single-walled carbon nanotubes, which strongly depended on the crystalline of nano-material, were successfully observed.
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Research Products
(108 results)
