ナノ細孔を有する二次元材料を用いた熱電発電の理論解析

抄録

The output power density of microfabricated thermoelectric generators (μTEGs) based on solid materials is insufficient near room temperature. Adopting an electrochemical nanopore system, we theoretically demonstrate the possibility to achieve a higher power density by improving the ionic selectivity. When a temperature difference (△T) of 30 K across a two-dimensional material membrane having a pore diameter of 1 nm, separating two reservoirs filled with a 0.1 mM aqueous KCl solution, is imposed, a power density of ca. 10³ W/m2/K is estimated. The constructed theoretical model includes thermogalvanic effects from the electrodes arising from △T. The theoretical predictions provide important information for the design of energy retrieving systems used in internet of things (IoT).