Xu Yunhe, Wu Bo, Hou Chengyi, Li Yaogang, Wang Hongzhi, Zhang Qinghong
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China.
Engineering Research Center of Advanced Glasses Manufacturing Technology Ministry of Education College of Materials Science and Engineering Donghua University Shanghai 201620 China.
Glob Chall. 2023 Jul 5;8(2):2300032. doi: 10.1002/gch2.202300032. eCollection 2024 Feb.
Flexible thin-film thermoelectric devices (TEDs) can generate electricity from the heat emitted by the human body, which holds great promise for use in energy supply and biomonitoring technologies. The p-type SbTe hexagon nanosheets are prepared by the hydrothermal synthesis method and compounded with TiCT to make composite films, and the results show that the TiCT content has a significant impact on the thermoelectric properties of the composite films. When the TiCT content is 2 wt%, the power factor of the composite film reaches ≈59 µW m K. Due to the outstanding electrical conductivity, high specific surface area, and excellent flexibility of TiCT, the composite films also exhibit excellent thermoelectric and mechanical properties. Moreover, the small addition of TiCT has a negligible effect on the phase composition of SbTe films. The TED consists of seven legs with an output voltage of 45 mV at Δ = 30 K. The potential of highly flexible thin film TEDs for wearable energy collecting and sensing is great.
柔性薄膜热电器件（TEDs）能够从人体散发的热量中产生电能，这在能量供应和生物监测技术中具有巨大的应用前景。通过水热合成法制备p型SbTe六边形纳米片，并与TiCT复合制成复合薄膜，结果表明TiCT含量对复合薄膜的热电性能有显著影响。当TiCT含量为2 wt%时，复合薄膜的功率因子达到约59 μW m K。由于TiCT具有出色的导电性、高比表面积和优异的柔韧性，复合薄膜还展现出优异的热电和机械性能。此外，少量添加TiCT对SbTe薄膜的相组成影响可忽略不计。该TED由七条腿组成，在Δ = 30 K时输出电压为45 mV。高度柔性的薄膜TED在可穿戴能量收集和传感方面潜力巨大。
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