Electrochromic Pressure-Sensitive Device for In Situ and Instantaneous Pressure Visualization.

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY Nano Letters Pub Date : 2025-03-19 Epub Date: 2025-03-11 DOI:10.1021/acs.nanolett.4c05064

Chen Chen, Mei-Hua Wang, Meng-Han Zhu, Fu-Xing Zhao, Bang Yu, Qian-Hao Pan, Xin Guo, Si-Zhe Sheng, Zhen He, Jin-Long Wang, Shu-Hong Yu

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Abstract

High sensitivity and spatial recognition of pressure sensors are important for application of the sensors in electronic skins, and in situ visualization is a practical and effective approach to identifying pressure information. Here, we present a facial strategy to achieve in situ pressure information recognition that is visible to the naked eye in coloring form by designing an H₃PO₄/PVA film with hemispheric microstructures in an integrated electrochromic pressure sensor. The device can be applied for different stress scenarios within the range of 0-250 kPa by adjusting the spacing of hemispheric microstructures and can identify the magnitude, position, shape, and duration of the pressure. Furthermore, the device can be used repeatedly by erasing under a 1 V bias, and more obvious information can be displayed under strong sunlight compared with light-emitting equipment. This strategy provides new insight into the design of flexible electronics for in situ and instantaneous pressure visualization in the future.

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用于现场和瞬时压力可视化的电致变色压敏装置。

压力传感器的高灵敏度和空间识别能力对传感器在电子皮肤中的应用至关重要，而原位可视化是一种实用有效的压力信息识别方法。在这里，我们提出了一种面部策略，通过设计具有半球微结构的H3PO4/PVA薄膜，在集成电致变色压力传感器中实现肉眼可见的着色形式的原位压力信息识别。该装置可通过调节半球微结构的间距，应用于0- 250kpa范围内的不同应力场景，并能识别压力的大小、位置、形状和持续时间。此外，该器件可以在1v偏置下擦除重复使用，与发光设备相比，在强阳光下可以显示更明显的信息。这一策略为未来的现场和瞬时压力可视化柔性电子设计提供了新的见解。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.