Ultrafast response of self-powered humidity sensor of flexible graphene oxide film
Ultrafast response of self-powered humidity sensor of flexible graphene oxide film
复制标题
柔性氧化石墨烯薄膜自供电湿度传感器的超快响应
DOI：
10.1016/j.matdes.2023.111683
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发表时间：
2023-02
影响因子：
8.4
通讯作者：
Liang Chen
中科院分区：
文献类型：
--
作者：
Songwei Zeng;Qiubo Pan;Zhijing Huang;Chenjie Gu;Tao Wang;Jinhui Xu;Zihan Yan;Feiyu Zhao;Pei Li;Yusong Tu;Yan Fan;Liang Chen
下一代湿度传感器作为人工皮肤或柔性电子中的智能设备之一，将需要在微环境中自供电、灵活、快速和准确地检测。尽管已经展示了各种柔性湿度传感器，但它们中的大多数依赖于大的外部电源来操作，并且仍然遭受响应慢、环境刺激的选择性差以及昂贵且复杂的过程。在这里，我们实现了自供电湿度传感器的超快响应和恢复时间小于0.3秒的柔性GO膜。重要的是，在所有最先进的湿度传感器中，这是湿度传感器响应最快的。此外，传感器在33%至98%的较宽范围内具有高灵敏度，并且由于其湿度感应发生器，在多种环境刺激下对湿度具有优异的选择性响应。理论计算表明，由含氧基团和水分子自发产生的质子具有快速的Grotthuss跳跃扩散行为。特别是，我们建立了四个实时测量系统，能够呼吸监测的人，智能叶面湿度传感器，和能量收集。我们的工作提供了一种简单的方法来制造下一代自供电传感器使用GO膜具有出色的湿度传感器性能。
Next-generation humidity sensor, as one of the smart devices in artificial skin or flexible electronics, will need to be self-powered, flexible, fast and accurately detecting in the microenvironment. Although various flexible humidity sensors have already been demonstrated, most of them rely on large external power sources to operate, and still suffer from slow response, poor selectivity in environmental stimuli, and expensive and complicated procedures. Here, we realize a self-powered humidity sensor with ultrafast response and recovery time of less than 0.3 s by flexible GO film. Importantly, of all state-of-the-art humidity sensors, this is the fastest response for humidity sensor. Moreover, the sensor has a high sensitivity within a wide range of RH from 33% to 98%, and an excellent selective response to humidity under multiple environmental stimuli, due to its moist-induced generator. Theoretical computations reveal that protons generated spontaneously from oxygen-containing groups and water molecules, have a fast diffusion behavior as Grotthuss hopping. In particular, we build four real-time measurement systems capable of respiration monitoring of human, smart leaf surface humidity sensor, and energy harvesting. Our work provides a simple way to fabricate next-generation self-powered sensor using GO film with outstanding humidity sensor performance.
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影响因子：
9.7
作者：
Zihan Yan;W. Yang;Hao Yang;Cheng Ji;S. Zeng;Xiuyun Zhang;Liang Zhao;Y. Tu
通讯作者：
Zihan Yan;W. Yang;Hao Yang;Cheng Ji;S. Zeng;Xiuyun Zhang;Liang Zhao;Y. Tu
影响因子：
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作者：
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影响因子：
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影响因子：
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作者：
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