Multispecies-coadsorption-induced rapid preparation of graphene glass fiber fabric and applications in flexible pressure sensor

Kun Wang, Xiucai Sun, Shuting Cheng, Yi Cheng, Kewen Huang, Ruojuan Liu, Hao Yuan, Wenjuan Li, Fushun Liang, Yuyao Yang, Fan Yang, Kangyi Zheng, Zhiwei Liang, Ce Tu, Mengxiong Liu, Mingyang Ma, Yunsong Ge, Muqiang Jian, Wanjian Yin, Yue Qi () and Zhongfan Liu ()
Additional contact information
Kun Wang: Peking University
Xiucai Sun: Peking University
Shuting Cheng: Beijing Graphene Institute (BGI)
Yi Cheng: Peking University
Kewen Huang: Peking University
Ruojuan Liu: Peking University
Hao Yuan: Peking University
Wenjuan Li: Peking University
Fushun Liang: Peking University
Yuyao Yang: Peking University
Fan Yang: Peking University
Kangyi Zheng: Beijing Graphene Institute (BGI)
Zhiwei Liang: Beijing Graphene Institute (BGI)
Ce Tu: Beijing Graphene Institute (BGI)
Mengxiong Liu: Peking University
Mingyang Ma: Peking University
Yunsong Ge: Peking University
Muqiang Jian: Peking University
Wanjian Yin: Beijing Graphene Institute (BGI)
Yue Qi: Beijing Graphene Institute (BGI)
Zhongfan Liu: Peking University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Direct chemical vapor deposition (CVD) growth of graphene on dielectric/insulating materials is a promising strategy for subsequent transfer-free applications of graphene. However, graphene growth on noncatalytic substrates is faced with thorny issues, especially the limited growth rate, which severely hinders mass production and practical applications. Herein, graphene glass fiber fabric (GGFF) is developed by graphene CVD growth on glass fiber fabric. Dichloromethane is applied as a carbon precursor to accelerate graphene growth, which has a low decomposition energy barrier, and more importantly, the produced high-electronegativity Cl radical can enhance adsorption of active carbon species by Cl–CH2 coadsorption and facilitate H detachment from graphene edges. Consequently, the growth rate is increased by ~3 orders of magnitude and carbon utilization by ~960-fold, compared with conventional methane precursor. The advantageous hierarchical conductive configuration of lightweight, flexible GGFF makes it an ultrasensitive pressure sensor for human motion and physiological monitoring, such as pulse and vocal signals.

Date: 2024
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DOI: 10.1038/s41467-024-48958-y

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