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Alternative TitleFlexible wearable sensor based on graphene/PEDOT:PSS composite material
赵木森1,2,3; 于海波1,2; 孙丽娜3; 周培林1,2,4; 邹旿昊1,2,4; 刘连庆1,2
Source Publication中国科学:技术科学
Indexed ByEI ; CSCD
EI Accession number20194307575966
Contribution Rank1
Funding Organization国家自然科学基金(批准号: 61475183, 61503258) ; 北京理工大学智能机器人与系统高精尖创新中心开放基金(编号: 2016IRS08)
Keyword柔性器件 应变传感 直写喷墨打印 石墨烯 PEDOT:PSS


Other Abstract

As a rapidly emerging field for the intelligent terminals, wearable electronic devices have present a huge market prospect. Flexible resistive strain sensor has become one of the most concerned electrical sensors owing to its attractive properties, such as high sensitivity and biocompatibility. In this paper, a novel graphene (GR)/PEDOT:PSS multi-component hybrid ink material was prepared based on solution blending method. A “resistive” flexible strain sensor was fabricated by direct-inkjet printing technology. Polyimide (PI) flexible film, and GR/PEDOT:PSS multi-component mixed ink were used as substrate and conductive material, respectively. The conductive patterns were printed on the flexible substrate by direct-inkjet-printing technology. The scanning electron microscope (SEM) and electrical test platform were used to characterize and analyze the effect of different graphene doping amounts on the performance and printing process of composite ink materials. The experimental results show that the GR material dispersed by ethanol can be effectively distributed in PEDOT:PSS, which improves its dispersibility in conductive polymer. The line width decreases as the print rate increases and the resistance and sensitivity of the flexible sensors are gradually decreased with the increase of GR doping amount. It can be concluded that the ink material with relatively loosened and dispersive property will be more conducive to improve the device sensitivity. The sensitivity of the flexible wearable sensor can be significantly improved with the increasing aspect ratio of the flexible sensor as well. The resistance change rate (R/R0) is up to 3.414 when the bending angle was 80°, which makes the GR/PEDOT:PSS composite material based sensor promising to be applied in the emerging field of flexible wearable devices.

Citation statistics
Cited Times:5[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author于海波
Recommended Citation
GB/T 7714
赵木森,于海波,孙丽娜,等. 基于石墨烯/PEDOT:PSS复合材料制备的可穿戴柔性传感器[J]. 中国科学:技术科学,2019,49(7):851-860.
APA 赵木森,于海波,孙丽娜,周培林,邹旿昊,&刘连庆.(2019).基于石墨烯/PEDOT:PSS复合材料制备的可穿戴柔性传感器.中国科学:技术科学,49(7),851-860.
MLA 赵木森,et al."基于石墨烯/PEDOT:PSS复合材料制备的可穿戴柔性传感器".中国科学:技术科学 49.7(2019):851-860.
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