Giant gauge factor of Van der Waals material based strain sensors

Wenjie Yan; Huei Ru Fuh; Yanhui Lv; Ke Qiu Chen; Tsung Yin Tsai; Yuh Renn Wu; Tung Ho Shieh; Kuan Ming Hung; Juncheng Li; Duan Zhang; Cormac Ó Coileáin; Sunil K. Arora; Zhi Wang; Zhaotan Jiang; Ching Ray Chang; Han Chun Wu

doi:10.1038/s41467-021-22316-8

Giant gauge factor of Van der Waals material based strain sensors

Wenjie Yan, Huei Ru Fuh, Yanhui Lv, Ke Qiu Chen, Tsung Yin Tsai, Yuh Renn Wu, Tung Ho Shieh, Kuan Ming Hung^*, Juncheng Li, Duan Zhang, Cormac Ó Coileáin, Sunil K. Arora, Zhi Wang, Zhaotan Jiang, Ching Ray Chang, Han Chun Wu^*

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

86 Citations (Scopus)

Abstract

There is an emergent demand for high-flexibility, high-sensitivity and low-power strain gauges capable of sensing small deformations and vibrations in extreme conditions. Enhancing the gauge factor remains one of the greatest challenges for strain sensors. This is typically limited to below 300 and set when the sensor is fabricated. We report a strategy to tune and enhance the gauge factor of strain sensors based on Van der Waals materials by tuning the carrier mobility and concentration through an interplay of piezoelectric and photoelectric effects. For a SnS₂ sensor we report a gauge factor up to 3933, and the ability to tune it over a large range, from 23 to 3933. Results from SnS₂, GaSe, GeSe, monolayer WSe₂, and monolayer MoSe₂ sensors suggest that this is a universal phenomenon for Van der Waals semiconductors. We also provide proof of concept demonstrations by detecting vibrations caused by sound and capturing body movements.

Original language	English
Article number	2018
Journal	Nature Communications
Volume	12
Issue number	1
DOIs	https://doi.org/10.1038/s41467-021-22316-8
Publication status	Published - 1 Dec 2021

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title = "Giant gauge factor of Van der Waals material based strain sensors",

abstract = "There is an emergent demand for high-flexibility, high-sensitivity and low-power strain gauges capable of sensing small deformations and vibrations in extreme conditions. Enhancing the gauge factor remains one of the greatest challenges for strain sensors. This is typically limited to below 300 and set when the sensor is fabricated. We report a strategy to tune and enhance the gauge factor of strain sensors based on Van der Waals materials by tuning the carrier mobility and concentration through an interplay of piezoelectric and photoelectric effects. For a SnS2 sensor we report a gauge factor up to 3933, and the ability to tune it over a large range, from 23 to 3933. Results from SnS2, GaSe, GeSe, monolayer WSe2, and monolayer MoSe2 sensors suggest that this is a universal phenomenon for Van der Waals semiconductors. We also provide proof of concept demonstrations by detecting vibrations caused by sound and capturing body movements.",

author = "Wenjie Yan and Fuh, {Huei Ru} and Yanhui Lv and Chen, {Ke Qiu} and Tsai, {Tsung Yin} and Wu, {Yuh Renn} and Shieh, {Tung Ho} and Hung, {Kuan Ming} and Juncheng Li and Duan Zhang and {{\'O} Coile{\'a}in}, Cormac and Arora, {Sunil K.} and Zhi Wang and Zhaotan Jiang and Chang, {Ching Ray} and Wu, {Han Chun}",

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AU - Yan, Wenjie

AU - Fuh, Huei Ru

AU - Lv, Yanhui

AU - Chen, Ke Qiu

AU - Tsai, Tsung Yin

AU - Wu, Yuh Renn

AU - Shieh, Tung Ho

AU - Hung, Kuan Ming

AU - Li, Juncheng

AU - Zhang, Duan

AU - Ó Coileáin, Cormac

AU - Arora, Sunil K.

AU - Wang, Zhi

AU - Jiang, Zhaotan

AU - Chang, Ching Ray

AU - Wu, Han Chun

PY - 2021/12/1

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N2 - There is an emergent demand for high-flexibility, high-sensitivity and low-power strain gauges capable of sensing small deformations and vibrations in extreme conditions. Enhancing the gauge factor remains one of the greatest challenges for strain sensors. This is typically limited to below 300 and set when the sensor is fabricated. We report a strategy to tune and enhance the gauge factor of strain sensors based on Van der Waals materials by tuning the carrier mobility and concentration through an interplay of piezoelectric and photoelectric effects. For a SnS2 sensor we report a gauge factor up to 3933, and the ability to tune it over a large range, from 23 to 3933. Results from SnS2, GaSe, GeSe, monolayer WSe2, and monolayer MoSe2 sensors suggest that this is a universal phenomenon for Van der Waals semiconductors. We also provide proof of concept demonstrations by detecting vibrations caused by sound and capturing body movements.

AB - There is an emergent demand for high-flexibility, high-sensitivity and low-power strain gauges capable of sensing small deformations and vibrations in extreme conditions. Enhancing the gauge factor remains one of the greatest challenges for strain sensors. This is typically limited to below 300 and set when the sensor is fabricated. We report a strategy to tune and enhance the gauge factor of strain sensors based on Van der Waals materials by tuning the carrier mobility and concentration through an interplay of piezoelectric and photoelectric effects. For a SnS2 sensor we report a gauge factor up to 3933, and the ability to tune it over a large range, from 23 to 3933. Results from SnS2, GaSe, GeSe, monolayer WSe2, and monolayer MoSe2 sensors suggest that this is a universal phenomenon for Van der Waals semiconductors. We also provide proof of concept demonstrations by detecting vibrations caused by sound and capturing body movements.

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JO - Nature Communications

JF - Nature Communications

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Giant gauge factor of Van der Waals material based strain sensors

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