Research on 3D-Printed Micro-Nano Energy Harvesting Devices
This study explores the fabrication of thermoelectric power generation devices with three-dimensional structures using direct ink writing (DIW) 3D printing technology. A rheologically tailored, printable thermoelectric ink is developed to enable precise 3D structuring. A unique device architecture is designed, integrating absorptive, reflective, conductive, and insulating layers, all fabricated entirely through 3D printing. This configuration facilitates the creation of multiple temperature gradients, enhancing thermoelectric output. The device is capable of harvesting temperature differences between the human body and the surrounding environment to generate electricity. Furthermore, the integration of a backend power management circuit allows the device to drive low-power sensors and other electronic components, demonstrating significant potential for future research and applications.
基于3D打印的微纳能源采集器件研究
通过采用3D打印墨水直写技术,并配置了具备流变性质的可打印热电油墨,实现3D结构的热电发电机器件制备,并设计了具备吸热层、反射层、导热层、隔热层的独特结构,采用全3D打印方式制备,可实现多段温差,达到提高热电输出的作用,可通过收集人体与环境温差,实现发电的功能,并通过后端电源管理电路设计,驱动低功耗传感等设备,具有较广泛研究前景。

(b) Printability test of the framework structure
(c) Schematic illustration of the wearable thermoelectric device
(d) Diagram of the absorptive layer, reflective layer, thermoelectric generator, insulating layer, and conductive layer
(e) Cross-sectional view and current flow direction of the thermoelectric device
(a)3D打印机墨水直写技术(DIW)示意图 (b)框架结构可打印性测试 (c)可穿戴热电器件示意图 (d)吸热层、反射层、热电发电机、隔热层、导热层示意图 (e)热电器件横截面及电流方向示意图
