Abstract
Micro/nanoscale temperature measurement is a key technique to understand the thermal transport of nanomaterials. In this work, we treat nanoscale temperature distribution of individual MWCNT using a transmission electron microscope (TEM) and phase transition of metal nanoparticles. Nanoparticles are deposited on an individual CNT which bridges between Pt electrodes and are heated by Joule heating. Metal nanoparticles reach them melting point, and contrast change occurs in TEM images because of liquid-solid transition. Temperature distribution can be obtained as below or above the melting point. Spatial resolution depends on the size of nanoparticle and it's about 100nm.
