کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
669971 | 1458760 | 2012 | 4 صفحه PDF | دانلود رایگان |
Thermal conductivity of individual multiwalled carbon nanotubes (MWCNT) is measured using a pulsed photothermal reflectance technique. Intrinsic thermal conductivity of individual MWCNT with a diameter 150 nm and length 2 μm at room temperature is extracted to be 2586 W/mK. Individual MWCNT is surrounded by SiO2, so parallel resistor model is applied in which SiO2 supportive is treated as a conducting channel that transports heat in parallel with MWCNT.
► A single MWCNT of diameter 150 nm with length of 2 μm was fabricated.
► Single MWCNT was anchored at the bottom of a trench created by etching of SiO2.
► Pulsed photothermal reflectance has been applied to measure thermal conductivity.
► Parallel resistor model was used to extract thermal conductivity of individual CNT.
► Thermal conductivity of individual MWCNT was measured to be 2586 W/mK.
Journal: International Journal of Thermal Sciences - Volume 62, December 2012, Pages 40–43