Kim In Yea, Chun Dong Won, Kim Sang-Il, Lim Jae-Hong
Department of Materials Science and Engineering, Gachon University, Seongnam, South Korea.
Center for Energy Materials Research, Korea Institute of Science and Technology, Seoul, South Korea.
Front Chem. 2022 Jan 26;9:791155. doi: 10.3389/fchem.2021.791155. eCollection 2021.
Controlling the electronic transport behavior in thermoelectric composites is one of the most promising approaches to enhance their power factor because this enables decoupling of the correlation between the electrical conductivity and Seebeck coefficient. Herein, we show that the unexpected high power factor of the Se nanowire array embedded in poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) can be achieved by controlling the interfacial band structure engineering. The electrical conductivity and Seebeck coefficient simultaneously increased, confirming that the synthesis of organic/inorganic hybrid thermoelectric materials with improved performance was possible. Our exploration can be helpful for the rational design of high-performance thermoelectric composites through interface engineering.
控制热电复合材料中的电子输运行为是提高其功率因子最具前景的方法之一，因为这能够使电导率和塞贝克系数之间的相关性解耦。在此，我们表明，通过控制界面能带结构工程，可以实现嵌入聚（3,4-乙撑二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT:PSS）中的硒纳米线阵列具有意外的高功率因子。电导率和塞贝克系数同时增加，证实了合成具有改进性能的有机/无机杂化热电材料是可能的。我们的探索有助于通过界面工程对高性能热电复合材料进行合理设计。
