journal article·2023-03-28

Fabricating Flexible Strain Sensor with Direct Writing Graphene/Carbon Nanotube Aerogel

Chen Chen, Fuqiang Chu, Yang Zhang, Mengdi Ma, Rui Sun, Peng Jia, Jiazhen Sun

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Abstract

Flexible strain sensor has wide applications in wearable devices and human–computer interaction. These sensors exhibit a flexible performance, which makes the structure of the device adapt to a wide range of application scenarios. This work proposes a low-cost and accurate direct writing method to fabricate a three-dimensional graphene/carbon nanotube strain sensor by using prepared printing ink with good dispersion, extruding ordered lamellae, and controlling porous aerogel structure. The morphology of the prepared three-dimensional porous aerogel was controlled with the ice template method. The strain sensor could be obtained by encapsulating the PDMS precursor, which shows high stretchability with a sensitivity of 18.55 at a 20% tensile strain. It offers good stability after 900 times of repeated stretching under 20% strain. This study of fabricating flexible strain sensors could provide a facile and effective way to apply intelligent packaging and wearable electronic devices.
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Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Gas Sensing Nanomaterials and Sensors · Advanced Materials and Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education/Shandong Province, Faculty of Light Industry, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China

Science and Technology Service Platform of SDAS, Jinan 250100, China

Shandong Productivity Promotion Center for SMEs, Jinan 250000, China

Funding

Department of Science and Technology of Shandong Province · State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology · National Natural Science Foundation of China · Shandong Science and Technology Small and Medium-sized Enterprises Innovation Capacity Improvement Project · Key Lab of Intelligent and Green Flexographic Printing, Shanghai Publishing and Printing College

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