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Dynamic Photomask-Assisted Direct Ink Writing Multimaterial for Multilevel Triboelectric Nanogenerator

机译：用于多级摩擦电纳米发生器的动态光掩模辅助直接墨水书写多材料

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摘要

Triboelectric nanogenerator (TENG) devices are extensively studied as a mechanical energy harvester and self-powered sensor for wearable electronics and physiological monitoring. However, the conventional TENG fabrication involving assembling steps and using the single property of matrix material suffers from simple devices shape and a single level of mechanical response for sensing and energy harvesting. Here, the printed multimaterial matrix for multilevel mechanical-responsive TENG with on-demand reconfiguration of shape is reported. A multimaterial 3D printing approach by using dynamic photomask-assisted direct ink writing printing together with a two-stage curing hybrid ink is first developed. Multimaterial structures with location-specific properties, such as tensile modulus, failure stress, and glass transition temperature for controlled deformation, crack propagation path, and sequential shape memory, are directly printed. The printed multimaterial structure with sequential deformation behavior is used to fabricate a multilevel-TENG (mTENG) device for multiple level mechanical energy harvesters and sensors. It is demonstrated that the mTENG can be embedded in shoe insoles to achieve both comfortable wearing and motion state monitoring. This work provides a new approach to combine multimaterial 3D printing with TENG devices for functional wearable electronics as energy harvester and sensors.
机译：摩擦电纳米发电机（TENG）装置已被广泛研究为机械能采集器和自供电传感器，用于可穿戴电子设备和生理监测。然而，涉及组装步骤并使用基体材料的单一性质的常规TENG制造遭受简单的装置形状和用于感测和能量收集的单一水平的机械响应的困扰。在此，报告了具有按需形状重构的多级机械响应性TENG的印刷多材料矩阵。首先开发了一种多材料3D打印方法，该方法通过使用动态光掩模辅助直接墨水书写打印以及两阶段固化混合墨水来实现。直接打印具有特定位置特性的多材料结构，例如拉伸模量，破坏应力和可控变形，裂纹传播路径和顺序形状记忆的玻璃化转变温度。具有顺序变形行为的印刷多材料结构用于制造用于多级机械式能量收集器和传感器的多级TENG（mTENG）设备。事实证明，mTENG可以嵌入鞋垫中，以实现舒适的穿着和运动状态监控。这项工作提供了一种新方法，将多材料3D打印与TENG设备相结合，以用于功能性可穿戴电子设备，例如能量收集器和传感器。

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  • 来源
    《Advanced Functional Materials》 |2019年第33期|1903568.1-1903568.9|共9页
  • 作者

    Chen Kaijuan; Zhang Lei; Kuang Xiao; Li Vincent; Lei Ming; Kang Guozheng; Wang Zhong Lin; Qi Hang Jerry;

  • 作者单位

    Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA|Southwest Jiaotong Univ, Appl Mech & Struct Safety Key Lab Sichuan Prov, Sch Mech & Engn, Chengdu 610031, Sichuan, Peoples R China;

    Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA|Southwest Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Sch Mat Sci & Engn, Chengdu 610031, Sichuan, Peoples R China;

    Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA;

    Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA;

    Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA;

    Southwest Jiaotong Univ, Appl Mech & Struct Safety Key Lab Sichuan Prov, Sch Mech & Engn, Chengdu 610031, Sichuan, Peoples R China;

    Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA;

    Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA;

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  • 正文语种 eng
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  • 关键词

    3D printing; direct ink writing; multimaterial; TENG; triboelectric nanogenerator;

    机译：3D打印;直接墨水写作;多国;滕;摩擦纳米料;

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