Ultralight, Elastic, Hybrid Aerogel for Flexible/Wearable Piezoresistive Sensor and Solid–Solid/Gas–Solid Coupled Triboelectric Nanogenerator

Tianci Huang, Yong Long, Zilong Dong, Qilin Hua, Jianan Niu, Xinhuan Dai, Jiangwen Wang, Junfeng Xiao*, Junyi Zhai*, Weiguo Hu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

Aerogels have been attracting wide attentions in flexible/wearable electronics because of their light weight, excellent flexibility, and electrical conductivity. However, multifunctional aerogel-based flexible/wearable electronics for human physiological/motion monitoring, and energy harvest/supply for mobile electronics, have been seldom reported yet. In this study, a kind of hybrid aerogel (GO/CNT HA) based on graphene oxide (GO) and carboxylated multiwalled carbon nanotubes (CMWCNTs) is prepared which can not only used as piezoresistive sensors for human motion and physiological signal detections, but also as high performance triboelectric nanogenerator (TENG) coupled with both solid–solid and gas–solid contact electrifications (CE). The repeatedly loading–unloading tests with 20 000 cycles exhibit its high and ultrastable piezoresistive sensor performances. Moreover, when the obtained aerogel is used as the electrode of a TENG, high electric output performance is produced due to the synergistic effect of solid–solid, and gas–solid interface CEs (3D electrification: solid–solid interface CE between the two solid electrification layers; gas–solid interface CE between the inner surface of GO/CNT HA and the air filled in the aerogel pores). This kind of aerogel promises good applications for human physiological/motion monitoring and energy harvest/supply in flexible/wearable electronics such as piezoresistive sensors and flexible TENG.

Original languageEnglish
Article number2204519
JournalAdvanced Science
Volume9
Issue number34
DOIs
Publication statusPublished - 8 Dec 2022
Externally publishedYes

Keywords

  • aerogel
  • multifunction
  • piezoresistive sensors
  • triboelectric nanogenerators

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Huang, T., Long, Y., Dong, Z., Hua, Q., Niu, J., Dai, X., Wang, J., Xiao, J., Zhai, J., & Hu, W. (2022). Ultralight, Elastic, Hybrid Aerogel for Flexible/Wearable Piezoresistive Sensor and Solid–Solid/Gas–Solid Coupled Triboelectric Nanogenerator. Advanced Science, 9(34), Article 2204519. https://doi.org/10.1002/advs.202204519