Annular flexible thermoelectric devices with integrated-module architecture
Annular flexible thermoelectric devices with integrated-module architecture
复制标题
具有集成模块架构的环形柔性热电装置
DOI：
10.1038/s41528-020-0064-2
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发表时间：
2020-01-29
影响因子：
14.6
通讯作者：
Chen, Guangming
中科院分区：
文献类型：
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作者：
Qu, Dawei;Huang, Xuan;Chen, Guangming
近年来，有机热电材料和复合热电材料得到了爆炸性的发展。其柔性器件的设计策略对于实现高性能和适应各种应用环境至关重要。在这里，我们提出了一种具有集成模块架构的环形柔性TE设备的设计策略，其中由交替连接的p-n对组成的独立模块串联连接，然后首尾圆滑成环形配置。由于高度集成的结构设计，所实现的装置不仅可以节省大量的空间，而且可以直接安装在圆柱形物体（如管道）上，以适应多种应用。更重要的是，环形TE器件显示出优异的性能，上级优于大多数先前的工作和传统的串联单层膜结构。例如，由三个p-n耦合组成的八个模块的环形器件在18 K的温度梯度下显示出12.37 μ W的输出功率，远高于相应的单层膜结构的输出功率（1.74 μ W）。集成过程简单，易于扩展。这种结构设计策略将大大加快TE的应用，有利于有机和复合TE材料的研究。
Organic and composite thermoelectric (TE) materials have witnessed explosive developments in recent years. Design strategy of their flexible devices is vital to achieve high performance and suit various application environments. Here, we propose a design strategy of annular flexible TE devices with integrated-module architecture, where the independent modules made up of alternatively connected p-n couples are connected in series, and then rounded head-to-tail into annular configuration. The achieved devices can not only save plenty of space owing to their highly integrated structure design, but also be directly mounted on cylindrical objects (like pipes) to suit versatile applications. More importantly, the annular TE devices display excellent performances, superior to most previous work and the traditional serial single-layer film structure. For example, the annular device with eight modules consisting of three p-n couples reveals an output power of 12.37 mu W at a temperature gradient of 18K, much higher than that of the corresponding single-layer film structure (1.74 mu W). The integration process is simple and easy to scale up. This architecture design strategy will greatly speed up the TE applications and benefit the research of organic and composite TE materials.