Abstract
Carbon nanotube (CNT) has potential applications in various fields such as nanosensors. Measurement of thermal property of single CNT in liquid is quite difficult. Here, we propose a novel evaluation model for measurement of the thermal conductivity of single CNT in liquid with a gel sensor impregnated with temperature sensitive quantum dot. Two gel-sensors are fixed to CNT. Heat is input to CNT through the gel sensor. Roles of the gel sensor are temperature sensing and heat input to the CNT by IR laser. Quantum dots are impregnated in this gel sensor. Temperature is measured by detection of fluorescence intensity from the gel sensor. Sensitivity is -1.1 %/K. Accuracy is ±0.5 K. The error of heat input is less than 5%. Thermal conductivity can be calculated from proposed model. The current estimated error of thermal conductivity in this model is 20%.
