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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Ultrathin, flexible and transparent graphene- based triboelectric nanogenerators for attachable curvature monitoring
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Ultrathin, flexible and transparent graphene- based triboelectric nanogenerators for attachable curvature monitoring

机译：超薄，柔性透明石墨烯的摩擦纳米能器，可连接曲率监测

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摘要

Pursuits of wearable electronics include the features of flexible, self-powered, and even being ultrathin and transparent for a better fit on different curved surfaces in an imperceptible way. In this paper, by stacking two graphene-covered parylene films layer by layer and introducing serpentine structures in one parylene film as the spacer, ultraflexible triboelectric nanogenerators (TENGs) with a total thickness of 5.5 mu m and a transmittance of 80% were achieved. Under the stimulation of vertical impacts at frequencies of 0.5 Hz, 1 Hz, 1.5 Hz, 2 Hz, and 2.5 Hz, an open-circuit (OC) voltage of 3 V was maintained in a TENG measuring 2 x 2cm(2) throughout all the cases, which indicated a good mechanical stability of the device. When the TENG was bent, there was an increase in OC voltage and short-circuit current in response to an increased curvature. Due to its ultrathin nature and being sensitive to curvature, the TENG was demonstrated to serve as a self-powered curvature sensor for movement monitoring when conformably attached on the finger joint.
机译：可佩戴电子设备的活动包括的特征柔性，自供电，并且即使在超薄和透明用于在难以察觉的方式上不同的弯曲表面的更好配合。在本文中，通过堆叠由层2的石墨烯覆盖的聚对二甲苯膜层，并引入蛇形结构在一个聚对二甲苯膜作为隔离物，超柔摩擦纳米发电机（腾的），用5.5微米的总厚度m和分别实现80％的透射率。下垂直影响在0.5Hz，1赫兹，1.5赫兹，2赫兹和2.5赫兹，开路（OC）3 V的电压的频率的刺激保持在TENG测量2 x 2厘米（2）在所有的情况下，这表明该装置的良好的机械稳定性。当TENG被弯曲，有响应于增加的曲率增加OC电压和短路电流。由于它的超薄性质并且是曲率敏感，所述TENG被证明作为用于运动时一致地附着在手指关节监测自供电曲率传感器。

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