Brittle thermoelectric materials are flexible when sufficiently thin. Although film thickness plays an important role in determining flexibility, a thickness-controlled fabrication method for obtaining flexible, free-standing thermoelectric inorganic films has not yet been reported. In this study, a thickness-controlled fabrication method for free-standing Ag₂Se films with nanostructured raw materials is proposed. By introducing the post-annealing process, flexible, free-standing Ag₂Se films can be obtained. The effect of thickness on the flexibility and thermoelectric performance of the free-standing Ag₂Se films was systematically investigated. The thickness did not significantly affect the thermoelectric performance of the free-standing Ag₂Se films. Free-standing Ag₂Se films with thicknesses of 110 µm or less exhibited excellent flexible properties. However, thicker Ag₂Se films exhibited poor flexibility and that might be related with the experimental limitations in the fabrication process.

脆性热电材料在足够薄时是柔性的。尽管薄膜厚度在确定柔性方面起着重要作用，但尚未报道用于获得柔性、独立热电无机薄膜的厚度控制制造方法。在这项研究中，提出了一种使用纳米结构原材料的自支撑 Ag _{2 Se 薄膜的厚度控制制造方法。}通过引入后退火工艺，可以获得柔性、独立的 Ag _{2 Se 薄膜。}系统研究了厚度对自支撑 Ag _{2 Se 薄膜的柔韧性和热电性能的影响。}厚度对独立式Ag _{2的热电性能没有显着影响}硒片。厚度为 110 µm 或更小的独立 Ag _{2 Se 薄膜表现出优异的柔韧性。}然而，较厚的 Ag ₂ Se 薄膜表现出较差的柔韧性，这可能与制造过程中的实验限制有关。