| 초록 |
Generally, traditional inorganic thermoelectric(TE) materials such as BiTe or PbTe have shown an outstanding performance for low temperature (＜500K) applications. Due to their expensive cost, brittleness, interfacial tension and so on, recently many researchers have paid attention to alternative other materials for flexible and solution-processable TE devices in automotive applications. One of them, nano carbon materials (carbon nanotubes (CNTs) or graphenes) are considered as promising candidates of next generation TE materials. CNTs have a high aspect ratio and a superior electrical property and electrical conductive paths can be formed with small amount of CNTs. P-typed and n-typed CNTs are prepared by decorating electron-withdrawing or donating functional groups around CNTs, which leading to the control of carrier concentrations. We study how we design a structural frame for high performance hybrid TE devices using these nano carbon materials and investigate their TE properties. |
