期刊
CHEMICAL ENGINEERING JOURNAL
卷 457, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2022.141024
关键词
Ag2Se; Thermoelectric; Flexible film; Power generator; SWCNTs
High power factor and excellent bending resistance are achieved in an in situ grown 10 mol% SWCNTs/Ag2}ySe film. The high power factor is attributed to the enhanced carrier concentration and enlarged effective mass induced by the additional interstitial Ag. Moreover, the film exhibits excellent bending resistance and can be used in a flexible thermoelectric power generator with high output power.
High power factor contributes high power generation output while high bending resistance extends the service life in flexible thermoelectric device. Here, we report an in situ grown 10 mol% single-walled carbon nanotubes (SWCNTs) and Ag2}ySe (named as 10 mol% SWCNTs/Ag2}ySe) film, which shows a high power factor of 19.36 mu Wcm-1 K-2 at 300 K and excellent bending resistance. Such a high power factor is attributed to the enhanced carrier concentration and enlarged effective mass, induced by the additional interstitial Ag in the in situ grown Ag2Se on SWCNTs. Moreover, the 10 mol% SWCNTs/Ag2}ySe film can remain 95 % of the initial electrical conductivity after 1000 bending cycles at the radius of 5 mm, indicating an excellent bending resistance. In addition, this film was assembled into a flexible thermoelectric power generator, which can achieve an output power of 0.72 mu W and an open-circuit voltage of 18.17 mV at a temperature difference of 30 K. This study in- dicates that in situ compositing Ag2Se on SWCNTs can realize the increased thermoelectric performance and bending resistance, which drives the application of Ag2Se-based flexible films.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据