A high performance surface acoustic wave visible light sensor using novel materials: Bi2S3 nanobelts

Chong Li; Hao Kan; Jingting Luo; Chen Fu; Jian Zhou; Xueli Liu; Wen Wang; Qiuping Wei; Richard Fu

doi:10.1039/c9ra08848b

A high performance surface acoustic wave visible light sensor using novel materials: Bi2S3 nanobelts

Chong Li, Hao Kan, Jingting Luo, Chen Fu, Jian Zhou, Xueli Liu, Wen Wang, Qiuping Wei, Richard Fu

Mathematics, Physics and Electrical Engineering

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

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Abstract

Low dimensional Bi2S3 materials are excellent for use in photodetectors with excellent stability and fast response time. In this work, we developed a visible light sensor with good performance based on surface acoustic wave (SAW) devices using Bi2S3 nanobelts as the sensing materials. The SAW delay-line sensor was fabricated on ST-cut quartz with a designed wavelength of 15.8 microns using conventional photolithography techniques. The measured center frequency was 200.02 MHz. The Bi2S3 nanobelts prepared by a facile hydrothermal process were deposited onto SAW sensors by spin-coating. Under irradiation of 625 nm visible light with a power intensity of 170 μW cm−2, the sensor showed a fast and large response with a frequency upshift of 7 kHz within 1 s. The upshift of the frequency of the SAW device is mainly attributed to the mass loading effect caused by the desorption of oxygen from the Bi2S3 nanobelts under visible light radiation.

Original language	English
Pages (from-to)	8936-8940
Number of pages	5
Journal	RSC Advances
Volume	10
Issue number	15
Early online date	2 Mar 2020
DOIs	https://doi.org/10.1039/c9ra08848b
Publication status	Published - 2 Mar 2020

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title = "A high performance surface acoustic wave visible light sensor using novel materials: Bi2S3 nanobelts",

abstract = "Low dimensional Bi2S3 materials are excellent for use in photodetectors with excellent stability and fast response time. In this work, we developed a visible light sensor with good performance based on surface acoustic wave (SAW) devices using Bi2S3 nanobelts as the sensing materials. The SAW delay-line sensor was fabricated on ST-cut quartz with a designed wavelength of 15.8 microns using conventional photolithography techniques. The measured center frequency was 200.02 MHz. The Bi2S3 nanobelts prepared by a facile hydrothermal process were deposited onto SAW sensors by spin-coating. Under irradiation of 625 nm visible light with a power intensity of 170 μW cm−2, the sensor showed a fast and large response with a frequency upshift of 7 kHz within 1 s. The upshift of the frequency of the SAW device is mainly attributed to the mass loading effect caused by the desorption of oxygen from the Bi2S3 nanobelts under visible light radiation.",

author = "Chong Li and Hao Kan and Jingting Luo and Chen Fu and Jian Zhou and Xueli Liu and Wen Wang and Qiuping Wei and Richard Fu",

note = "Funding information: The authors gratefully acknowledge the support of the National Key Research and Development Program of China (grant no. 2016YFB0402705), State Key Laboratory of Powder Metallurgy, Central South University, the China Postdoctoral Science Foundation (2019M653018). This work was also supported by National Natural Science Foundation of China (grant no. 11704261, 51605485, 11575118), Shenzhen Science & Technology Project (grant no. JCYJ20170817100658231, JCYJ20180507182439574, JCYJ20180305124317872). Funding supports from UK Engineering Physics and Science Research Council (EPSRC EP/P018998/1).try.",

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AU - Li, Chong

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AU - Zhou, Jian

AU - Liu, Xueli

AU - Wang, Wen

AU - Wei, Qiuping

AU - Fu, Richard

N1 - Funding information: The authors gratefully acknowledge the support of the National Key Research and Development Program of China (grant no. 2016YFB0402705), State Key Laboratory of Powder Metallurgy, Central South University, the China Postdoctoral Science Foundation (2019M653018). This work was also supported by National Natural Science Foundation of China (grant no. 11704261, 51605485, 11575118), Shenzhen Science & Technology Project (grant no. JCYJ20170817100658231, JCYJ20180507182439574, JCYJ20180305124317872). Funding supports from UK Engineering Physics and Science Research Council (EPSRC EP/P018998/1).try.

PY - 2020/3/2

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N2 - Low dimensional Bi2S3 materials are excellent for use in photodetectors with excellent stability and fast response time. In this work, we developed a visible light sensor with good performance based on surface acoustic wave (SAW) devices using Bi2S3 nanobelts as the sensing materials. The SAW delay-line sensor was fabricated on ST-cut quartz with a designed wavelength of 15.8 microns using conventional photolithography techniques. The measured center frequency was 200.02 MHz. The Bi2S3 nanobelts prepared by a facile hydrothermal process were deposited onto SAW sensors by spin-coating. Under irradiation of 625 nm visible light with a power intensity of 170 μW cm−2, the sensor showed a fast and large response with a frequency upshift of 7 kHz within 1 s. The upshift of the frequency of the SAW device is mainly attributed to the mass loading effect caused by the desorption of oxygen from the Bi2S3 nanobelts under visible light radiation.

AB - Low dimensional Bi2S3 materials are excellent for use in photodetectors with excellent stability and fast response time. In this work, we developed a visible light sensor with good performance based on surface acoustic wave (SAW) devices using Bi2S3 nanobelts as the sensing materials. The SAW delay-line sensor was fabricated on ST-cut quartz with a designed wavelength of 15.8 microns using conventional photolithography techniques. The measured center frequency was 200.02 MHz. The Bi2S3 nanobelts prepared by a facile hydrothermal process were deposited onto SAW sensors by spin-coating. Under irradiation of 625 nm visible light with a power intensity of 170 μW cm−2, the sensor showed a fast and large response with a frequency upshift of 7 kHz within 1 s. The upshift of the frequency of the SAW device is mainly attributed to the mass loading effect caused by the desorption of oxygen from the Bi2S3 nanobelts under visible light radiation.

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A high performance surface acoustic wave visible light sensor using novel materials: Bi2S3 nanobelts

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