Abstract Small-molecule organic metals are interesting not only due to the intriguing thermoelectric properties but also as promising thermoelectric materials. In this study, single-junction thermoelectric generators are investigated combining p-type materials such as (BTBT)2PF6, (BTBT)2AsF6, and (TMTSF)2PF6 (BTBT: [1]benzothieno[3,2-b][1]benzothiophene, and TMTSF: tetramethyl tetraselenafulvalene) with n-type materials such as Cu(DMDCNQI)2 and (TTM-TTP)(I3)5/3 (DMDCNQI: 2,5-dimethyl N,N’-dicyanoquinonediimine, and TTM-TTP: 2,5-bis[4,5-bis(methylthio)-1,3-dithiol-2-ylidene]-1,3,4,6-tetrathiapentalene). These complexes exhibit high and metallic conductivity exceeding 250 S cm−1 at room temperature, and result in large power factors from 26 to 116 μW m−1 K−2. Power output of a (TMTSF)2PF6/Cu(DMDCNQI)2 thermoelectric generator achieves 36 μW cm−1 at room temperature with a temperature difference of 10 K. In the actual thermoelectric generator with contact resistance, large Seebeck coefficient is more important than the power factor, and energy level matching between the thermoelectric and electrode materials is desirable.

中文翻译：

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使用分子导体的热电发电机的低温特性

摘要 小分子有机金属不仅因其有趣的热电特性而受到关注，而且是很有前景的热电材料。在这项研究中，研究了结合 p 型材料的单结热电发电机，例如 (BTBT)2PF6、(BTBT)2AsF6 和 (TMTSF)2PF6（BTBT：[1]benzothieno[3,2-b][1]苯并噻吩和 TMTSF：四甲基四硒富瓦烯）与 n 型材料，例如 Cu(DMDCNQI)2 和 (TTM-TTP)(I3)5/3（DMDCNQI：2,5-二甲基 N,N'-二氰基醌二亚胺和 TTM- TTP：2,5-双[4,5-双(甲硫基)-1,3-二硫醇-2-亚基]-1,3,4,6-四硫戊烯)。这些配合物在室温下表现出超过 250 S cm-1 的高金属电导率，并导致从 26 到 116 μW m-1 K-2 的大功率因数。