Enhanced thermoelectric properties exhibited by unreduced freestanding graphene oxide/carbon nanotube membranes
Enhanced thermoelectric properties exhibited by unreduced freestanding graphene oxide/carbon nanotube membranes
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DOI：
10.1039/d1ma00299f
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发表时间：
2021-06-11
影响因子：
5
通讯作者：
Hayami, Shinya
中科院分区：
文献类型：
--
作者：
Islam, Md Saidul;Ohmagari, Hitomi;Hayami, Shinya
在这里，我们确定的塞贝克系数，电导率，和热电功率因数的范围内的未还原的氧化石墨烯（GO）/单壁碳纳米管（CNT）膜纳入不同的GO/CNT的比例，以及一系列的还原氧化石墨烯（rGO）膜的还原已发生在不同的温度。由未还原的GO/CNT（1：2比率）产生的5.33 × 10（-2）μ W mK（-2）的相当大的热电功率因数与其作为柔性热电材料的应用的适合性一致。此外，与传统热电材料的常规架构相比，基于GO的热电材料的固有灵活性为改进性能和效率打开了大门，结果是轻质、可扩展、可拉伸和/或可穿戴材料。
Herein we determine the Seebeck coefficients, electric conductivities, and thermoelectric power factors of a range of unreduced graphene oxide (GO)/single-wall carbon nanotube (CNT) membranes incorporating different GO/CNT ratios as well as of a series of reduced graphene oxide (rGO) membranes for which reduction had occurred at different temperatures. The considerable thermoelectric power factor of 5.33 x 10(-2) mu W mK(-2) generated from unreduced GO/CNT (1 : 2 ratio) is in agreement with its suitability for application as a flexible thermoelectric material. Moreover, compared to the conventional architectures of traditional thermoelectric materials, the inherent flexibility of GO-based thermoelectric materials opens the door to improved performance and efficiency, with lightweight, scalable, stretchable, and/or wearable materials being the outcome.