硕士生导师
个人信息Personal Information
教师英文名称：Hongbo Wang
入职时间：2022-06-29
学历：博士研究生毕业
学位：工学博士学位
办公地点：西南交通大学犀浦校区3号教学楼31608，智慧城市与交通学院
性别：男
在职信息：在岗
主要任职：智能制造与装备系主任助理
其他任职：智慧城市与交通学院本科教学秘书
毕业院校：西南交通大学
学科：机械制造及其自动化
所在单位：城市轨道交通学院（智慧城市与交通学院）
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Starfish-inspired ultrasensitive piezoresistive pressure sensor with an ultra-wide detection range for healthcare and intelligent production
影响因子：13.3
DOI码：10.1016/j.cej.2024.154953
所属单位：西南交通大学
教研室：智能制造与装备系
发表刊物：Chemical Engineering Journal
关键字：PEDOT:PSS；Electrospinning；Piezoresistive pressure sensors；Composite structure；Intelligent production
摘要：Flexible pressure sensors have attracted significant attention due to their wide range of applications in various fields (e.g., robotis, healthcare, and human–machine interfaces). However, achieving both high sensitivity and a wide detection range remains a challenge. Here, we propose a novel starfish-inspired ultrasensitive piezoresistive pressure sensor capable of detecting an extensive range of pressures. The sensor’s design incorporates high and low spine structures inspired by the surface of a starfish, efficiently preventing rapid saturation of detection range and expanding the response range. Unlike single-material nanofiber structures, the ultrathin and ultrasensitive layer, fabricated using PEDOT: PSS/TPU nanofibers, possesses a large surface area ratio and numerous contact points. This allows for a quick increase in conductive channels when pressure is applied. The intertwining of PEDOT: PSS fibers with TPU fibers enhances both the mechanical strength of the fiber membrane and the initial resistance of the sensor, thereby increasing its sensitivity. Additionally, PVA fibers are fabricated over the interdigital electrode to serve as insulation layer for controlling resistance change between the sensitive layer and the electrode. Importantly, the interaction between the PVA fibers and the PEDOT: PSS/TPU fibers alters the deformation behavior of the sensitive layer fibers, further enhancing the performance of the sensor. The fabricated sensor demonstrates exceptional sensitivity (302.9 kPa−1), an extensive detection range of 0–426.7 kPa, and remarkable endurance of over 7,000 cycles at 110 kPa, rendering it a device with great potential for precise pressure sensing applications in health monitoring and intelligent production.
合写作者：Hongbo Wang,Bingjun Yu,Linmao Qian
第一作者：Yixin Ma,Zhuorui Chen
论文类型：SCI
通讯作者：Zhi-Jun Zhao
论文编号：154953
学科门类：工学
文献类型：J
卷号：497
是否译文：否
发表时间：2024-08-20
收录刊物：SCI、EI
发布期刊链接：https://www.sciencedirect.com/science/article/pii/S1385894724064441?dgcid=coauthor