A high performance all-organic thermoelectric fiber generator towards promising wearable electron
A high performance all-organic thermoelectric fiber generator towards promising wearable electron
复制标题
高性能全有机热电纤维发电机有望用于可穿戴电子
DOI：
10.1016/j.compscitech.2019.107767
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发表时间：
2019
影响因子：
9.1
通讯作者：
Jiang Fengxing
中科院分区：
文献类型：
--
作者：
Lan Xiaoqi;Wang Tongzhou;Liu Congcong;Liu Peipei;Xu Jingkun;Liu Xiaofang;Du Yukou;Jiang Fengxing
纤维基材料由于可靠的柔韧性和优异的电子传输性能而在可穿戴有机电子领域受到广泛关注。热电（TE）转换被认为是一种有前途的便携式电子设备能量收集方法。然而，具有良好环境稳定性的n型有机材料的发展阻碍了全有机TE发电机的进一步组装。在此，我们设计并提出了一种由聚（3,4-乙撑二氧噻吩）：聚（4-苯乙烯磺酸）（PEDOT：PSS）和碳纳米管（CNT）纤维组成的全有机TE纤维发生器。以普通棉织物（CNF）为基础，通过在PEDOT:PSS溶液中简单浸泡，制备出具有较高电导率（18.8Scm−1）的p型导电织物。 n型碳纳米管（n-CNT）纤维是通过聚乙烯胺（PEI）处理的p型碳纳米管（p-CNT）获得的，具有高电导率（871Scm−1）和塞贝克系数（−58μVK−1），并且具有优异的环境稳定性。基于柔性光纤的TE发生器是通过串联p型PEDOT:PSS涂层CNF (CNF@PP)和n-CNT光纤组装而成，可实现大输出功率（375μW）。全有机纤维发电机的制造可以促进有机TE能量收集在可穿戴电子领域的进一步发展。
Fiber-based materials have gained great concern in wearable organic electrons due to reliable flexibility and excellent electron transport property. Thermoelectric (TE) conversion has been regarded as a promising energy harvesting for protable electron devices. However, the development of n-type organic material with good environmental stability hinder the further assembling of an all-organic TE generator. Herein, we designed and proposed an all-organic TE fiber generator composed of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) and carbon nanotube (CNT) fibers. The p-type conductive fabrics with a relatively high electrical conductivity (18.8 S cm−1) were prepared based on the common cotton fabric (CNF) by simple soaking in PEDOT:PSS solution. The n-type CNT (n-CNT) fibers were obtained through polyethylenemine (PEI) treated p-type CNT (p-CNT) resulting in a high electrical conductivity (871 S cm−1) and Seebeck coefficient (−58 μV K−1) with excellent environmental stability. The flexible fiber-based TE generator was assembled by connecting p-type PEDOT:PSS-coated CNF (CNF@PP) andn-CNT fibers in series allowing a large output power (375 μW). The fabrication of all-organic fiber generator can promote the further development of organic TE energy harvest in wearable electrons.