Laser-Patterned Hierarchical Aligned Micro-/Nanowire Network for Highly Sensitive Multidimensional Strain Sensor

Zhao, Liang1; Qiao, Jingyu1; Li, Fangmei2; Yuan, Dandan1; Huang, Jiaxu1; Wang, Min2; Xu, Shaolin1

2022-10-01

10.1021/acsami.2c14642

ACS Applied Materials & Interfaces   Impact Factor & Quartile

1944-8244

1944-8252

Flexible multidirectional strain sensors capable of simultaneously detecting strain amplitudes and directions have attracted tremendous interest. Herein, we propose a flexible multidirectional strain sensor based on a newly designed single layer hierarchical aligned micro-/nanowire (HAMN) network. The HAMN network is efficiently fabricated using a one-step femtosecond laser patterning technology based on a modulated line-shaped beam. The anisotropic performance is attributed to the significantly different morphological changes caused by an inhomogeneous strain redistribution among the HAMN network. The fabricated strain sensor exhibits high sensitivity (gauge factor of 65 under 2.5% strain and 462 under larger strains), low response/recovery time (140 and 322 ms), and good stability (over 1000 cycles). Moreover, this single-layer strain sensor with high selectivity (gauge factor differences of similar to 73 between orthogonal strains) is capable of distinguishing multidimensional strains and exhibits decoupled responses under low strains (<1%). Therefore, the strain sensors enable the precise monitoring of subtle movements, including radial pulses and wrist bending, and the rectification of pen-holding posture. Benefitting from these remarkable performances, the HAMN-based strain sensors show potential applications, including healthcare and complex human motion monitoring.

multidimensional strain sensors laser patterning single-layer hierarchical aligned micro- nanowire network anisotropic response strain redistribution

SCI

English

First ; Corresponding

[2020KTSCX119] ; [20200925155508001] ; [GJHZ20190820151801786] ; [JCYJ20210324115608024] ; [KQTD20170810110250357]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000871002200001

AMER CHEMICAL SOC

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China

Zhao, Liang,Qiao, Jingyu,Li, Fangmei,et al. Laser-Patterned Hierarchical Aligned Micro-/Nanowire Network for Highly Sensitive Multidimensional Strain Sensor[J]. ACS Applied Materials & Interfaces,2022.

Zhao, Liang.,Qiao, Jingyu.,Li, Fangmei.,Yuan, Dandan.,Huang, Jiaxu.,...&Xu, Shaolin.(2022).Laser-Patterned Hierarchical Aligned Micro-/Nanowire Network for Highly Sensitive Multidimensional Strain Sensor.ACS Applied Materials & Interfaces.

Zhao, Liang,et al."Laser-Patterned Hierarchical Aligned Micro-/Nanowire Network for Highly Sensitive Multidimensional Strain Sensor".ACS Applied Materials & Interfaces (2022).