Organic semiconductors are attracting considerable attention as a new thermoelectric material because of their molecular diversity, non-toxicity and easy processing. The side chains which are introduced into two-dimensional (2D) transition metal dichalcogenides (TMDs) by covalent modification lead to a significant decrease in their thermal conductivity. Here, we describe a simple approach to preparing the side chains covalent modification TaS₂ (SCCM-TaS₂) organic/inorganic hybrid structures, which is a homogeneous and non-destructive technique that does not depend on defects and boundaries. Electrical conductivity of 3,401 S cm⁻¹ and a power factor of 0.34 mW m⁻¹ K⁻² are obtained for a hybrid material of SCCM-TaS₂, with an in-plane thermal conductivity of 4.0 W m⁻¹ K⁻¹, which is 7 times smaller than the thermal conductivity of the pristine TaS₂ crystal. The power factor and low thermal conductivity contribute to a thermoelectric figure of merit (ZT) of ~0.04 at 443 K.

有机半导体作为一种新型热电材料因其分子多样性、无毒、易加工等优点而备受关注。通过共价修饰引入二维 (2D) 过渡金属二硫属化物 (TMD) 中的侧链导致其热导率显着降低。在这里，我们描述了一种制备侧链共价修饰 TaS ₂ (SCCM-TaS ₂ ) 有机/无机杂化结构的简单方法，这是一种不依赖于缺陷和边界的均质和非破坏性技术。^{3.401 S cm -1}的电导率和 0.34 mW m ^-1 K ^-2的功率因数_{对于SCCM-TaS 2}的混合材料，获得了具有4.0 W m ^-1 K ^{-1的面内热导率，比原始TaS} ₂晶体的热导率小7倍。功率因数和低热导率有助于在 443 K 时产生约 0.04 的热电品质因数 (ZT)。