题目：

Capacitive Pressure Sensors Containing Reliefs on Solution-Processable Hydrogel Electrodes

作者：

Hongwei Zhou*, Mingcheng Wang, Xilang Jin, Hanbin Liu, Jialiang Lai, Haotian Du, Weixing Chen*, and Aijie Ma

文章信息：

Appl. Mater. Interfaces 2021, DOI: org/10.1021/acsami.0c18355

论文链接：

https://pubs.acs.org/doi/10.1021/acsami.0c18355

摘要：

Highly sensitive capacitive-type pressure sensor has been achieved by fabricating reliefs on solution-processable hydrogel electrodes. Hybrid PVA/PANI hydrogels (PVA, poly(vinyl alcohol); PANI, polyaniline) with a fully physically cross-linked binary network are selected as the electrodes of the pressure sensors. On the basis of the solution processability, reliefs are fabricated on the surface of PVA/PANI hydrogel electrodes by a template method. The gauge factor (GF) is enhanced by introducing reliefs and regulated by controlling the composition and relief dimension of hydrogel electrodes. The optimized pressure sensor containing reliefs achieves the highest GF of 7.70 kPa–1 and a sensing range of 0–7.4 kPa. Furthermore, the freezing and drying problems of the hydrogel sensors are overcome by introducing a binary solvent of water/glycerol and the pressure sensing ability at ?18 °C has been achieved. Finally, monitoring of various pressures in daily life, such as joint bending, blowing, and brush writing, is demonstrated using such pressure sensors.

恭喜王明城，再接再厉！

感谢各位审稿专家提出的宝贵意见和建议！

感谢国家自然科学青年基金、陕西省普通高校青年杰出人才计划，陕西省自然科学基础研究计划、陕西省高校科协青年人才托举计划项目对本工作的资助。