材料科学
塞贝克系数
热电发电机
热电效应
光电子学
发电机(电路理论)
功率(物理)
热电材料
纳米技术
工程物理
电气工程
物理
工程类
复合材料
热导率
量子力学
热力学
作者
Xingkun Ning,Weibing Guo,Jinchi Han,Yungen Ran,Wenxiang Jian,Xingyuan San,Lei Gao,Shufang Wang
摘要
Transparent thermoelectric films have attracted much interest due to the unusual coexistence of thermoelectric and optical transparency in a single device. Moreover, many devices, such as implantable electronic devices, chip sensors, localized refrigeration devices, are intrinsically of irregular shapes. Therefore, exploration for a flexible and transparent thermoelectric power generator (F-TTEG) is on the rise. In this study, we develop n-type transparent CdO films on the polyimide (PI) substrate, which exhibit outstanding flexibility, maintaining 90% and 99% of their original electrical conductivity and transmittance after 500 bending cycles around a 11-mm diameter rod. The films also demonstrate a high power factor of ∼ 1.3 μW cm−1 K−2 at room temperature. A thermoelectric prototype consisting of 8-leg of the CdO film generates a voltage of 15.2 mV and a maximum power density of 5.48 W m−2 at a temperature difference of 85 K. This work suggests that CdO films offer promising prospect for the development of high performance F-TTEG devices.
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