公开(公告)号：US20150357548A1

公开(公告)日：2015-12-10

申请号：US14334447

申请日：2014-07-17

Applicant: NATIONAL CENTRAL UNIVERSITY

Inventor： Sheng-Wei LEE ,  Yi-Fan NIU ,  Pei-Wen LI ,  Cheng-Lun HSIN ,  Chung-Jen TSENG

IPC: H01L35/34

CPC classification number: H01L35/34

Abstract: A method for forming a thermoelectric film having a micro groove includes the following steps: A) forming a plurality of parallel sacrificing wires by electrospinning, a diameter of each sacrificing wire being 100-500 nm; B) coating a thermoelectric film having a thickness of 80-200 nm on a part of a surface of each sacrificing wire; and C) removing the sacrificing wires from the thermoelectric films and thus obtaining the thermoelectric films each having the micro groove, a radio side of each thermoelectric film being open to the surroundings. The thermoelectric films finally prepared can have higher size uniformity without the disadvantage of catalyst residual. Further, the thermoelectric films each have a size smaller than the mean free path of phonons in one dimension, and thus the thermoelectric properties of the thermoelectric films can be improved.

Abstract translation: 一种形成具有微槽的热电膜的方法包括以下步骤：A）通过静电纺丝形成多根平行的牺牲线，每根牺牲线的直径为100-500nm; B）在每个处理线的表面的一部分上涂覆厚度为80-200nm的热电膜; 和C）从热电膜上除去牺牲线，从而得到各自具有微槽的热电膜，每个热电膜的无线电侧对周围开放。 最终制备的热电膜可以具有较高的尺寸均匀性，而不存在催化剂残留的缺点。 此外，热电膜的尺寸小于一维的声子的平均自由程，因此可以提高热电膜的热电性能。