Journal of Materiomics ( IF 8.4 ) Pub Date : 2020-10-28 , DOI: 10.1016/j.jmat.2020.10.011 Qiufeng Meng , Haijun Song , Yong Du , Yufei Ding , Kefeng Cai
In this work, poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) coated silver telluride (PCAg2Te) nanorods were prepared by a wet-chemical method using the PEDOT:PSS coated tellurium (PCTe) nanorods as the templates. Flexible PCAg2Te nanocomposite film on polyethersulfone (PES) substrate was prepared through vacuum filtration followed by mechanical pressing process. An optimal PCAg2Te nanocomposite film showed a maximum power factor of 143.3 μW/mK2 at room temperature and 221.7 μW/mK2 at 373 K. The electrical conductivity of the PCAg2Te composite film decreased by ∼ 3.3% after bending for 1000 times around a rod with a radius of 5 mm. An eight-leg thermoelectric generator assembled with the optimal PCAg2Te nanocomposite film generated a maximum output power and output density of 209.4 nW and 141.5 μW/cm2 at a temperature gradient of 30.3 K. This work provides a facile method to prepare thermoelectric materials for flexible thermoelectric generators.
中文翻译:
聚(3,4-乙撑二氧噻吩):柔性热电发电机用聚苯乙烯磺酸盐/ Ag 2 Te纳米棒复合膜的制备
在这项工作中,使用PEDOT:PSS涂覆的碲(PC Te )通过湿化学法制备了聚(3,4-乙撑二氧噻吩):聚(苯乙烯磺酸盐)(PEDOT:PSS)涂覆的碲化银(PC Ag 2 Te)纳米棒。)纳米棒作为模板。通过真空过滤,机械加压工艺制备了聚醚砜(PES)基底上的柔性PC Ag 2 Te纳米复合膜。最佳的PC的Ag 2碲纳米复合膜显示出143.3μW/ mK的最大功率因数2在室温和221.7μW/ mK的2在373 K. PC的电导率的Ag 2绕半径为5 mm的棒弯曲1000次后,Te复合膜减少了约3.3%。装有最佳PC Ag 2 Te纳米复合膜的八脚热电发生器在30.3 K的温度梯度下产生的最大输出功率和输出密度为209.4 nW和141.5μW/ cm 2。这项工作为制备热电提供了一种简便的方法。柔性热电发电机的材料。