Dun Chaochao, Hewitt Corey A, Huang Huihui, Xu Junwei, Montgomery David S, Nie Wanyi, Jiang Qike, Carroll David L
†Center for Nanotechnology and Molecular Materials, Department of Physics, Wake Forest University, Winston-Salem, North Carolina 27109, United States.
§Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States.
ACS Appl Mater Interfaces. 2015 Apr 8;7(13):7054-9. doi: 10.1021/acsami.5b00514. Epub 2015 Mar 27.
In this study, we report the fabrication of n-type flexible thermoelectric fabrics using layered Bi2Se3 nanoplate/polyvinylidene fluoride (PVDF) composites as the thermoelectric material. These composites exhibit room temperature Seebeck coefficient and electrical conductivity values of -80 μV K(-1) and 5100 S m(-1), respectively, resulting in a power factor approaching 30 μW m(-1)K(-2). The temperature-dependent thermoelectric properties reveal that the composites exhibit metallic-like electrical conductivity, whereas the thermoelectric power is characterized by a heterogeneous model. These composites have the potential to be used in atypical applications for thermoelectrics, where lightweight and flexible materials would be beneficial. Indeed, bending tests revealed excellent durability of the thermoelectric fabrics. We anticipate that this work may guide the way for fabricating high performance thermoelectric fabrics based on layered V-VI nanoplates.
在本研究中，我们报告了使用层状Bi2Se3纳米片/聚偏二氟乙烯（PVDF）复合材料作为热电材料制备n型柔性热电织物。这些复合材料在室温下的塞贝克系数和电导率分别为-80 μV K(-1)和5100 S m(-1)，功率因子接近30 μW m(-1)K(-2)。温度依赖性热电性能表明，复合材料表现出类似金属的电导率，而热电功率则由非均匀模型表征。这些复合材料有潜力用于热电的非典型应用，在这些应用中轻质且柔性的材料将是有益的。事实上，弯曲测试表明热电织物具有出色的耐久性。我们预计这项工作可能为基于层状V-VI族纳米片制备高性能热电织物指明方向。
