PDMS-assisted graphene microfiber ring resonator for temperature sensor

Wang, Mengqi; Li, Diao; Wang, Ruiduo; Zhu, Jiwen; Ren, Zhaoyu

doi:10.1007/s11082-018-1395-2

Cited by 21 publications

(12 citation statements)

References 27 publications

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“…Since the thermo-optic coefficient of MgF 2 (3.2 × 10 −7 • C −1 ) is much smaller than graphene (7.385 × 10 −6 • C −1 ), the effect of the temperature change on MgF 2 substrate is negligible. Good linearity and temperature sensitivity of 0.1018 dB • C −1 and 0.1052 dB • C −1 were measured when surrounding temperature increase and decrease, respectively, in steps of 5 • C between 30-80 • C. In a similar context, Wang et al [167] proposed the inclusion of polydimethylsiloxane (PDMS) to produce a PDMS-graphene pliable composite film wrapping around the microfiber ring resonator. Similar to the MgF 2 substrate, PDMS exhibits low refractive index and high thermal stability, making it a good candidate to work with graphene to achieve better performance of the temperature sensor.…”

Section: Temperature and Pressurementioning

confidence: 99%

Carbon Allotrope-Based Optical Fibers for Environmental and Biological Sensing: A Review

Yap

Chan

Tjin

et al. 2020

Sensors

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Recently, carbon allotropes have received tremendous research interest and paved a new avenue for optical fiber sensing technology. Carbon allotropes exhibit unique sensing properties such as large surface to volume ratios, biocompatibility, and they can serve as molecule enrichers. Meanwhile, optical fibers possess a high degree of surface modification versatility that enables the incorporation of carbon allotropes as the functional coating for a wide range of detection tasks. Moreover, the combination of carbon allotropes and optical fibers also yields high sensitivity and specificity to monitor target molecules in the vicinity of the nanocoating surface. In this review, the development of carbon allotropes-based optical fiber sensors is studied. The first section provides an overview of four different types of carbon allotropes, including carbon nanotubes, carbon dots, graphene, and nanodiamonds. The second section discusses the synthesis approaches used to prepare these carbon allotropes, followed by some deposition techniques to functionalize the surface of the optical fiber, and the associated sensing mechanisms. Numerous applications that have benefitted from carbon allotrope-based optical fiber sensors such as temperature, strain, volatile organic compounds and biosensing applications are reviewed and summarized. Finally, a concluding section highlighting the technological deficiencies, challenges, and suggestions to overcome them is presented.2 of 43 of target molecules or physical parameters. In some instances, surface-modified carbon allotropes also permit multi-parameter detection capabilities of carbon allotrope-based OFS [7]. As such, an insight into the recent advances of carbon allotrope-based OFS can serve as a guideline to develop an effective detection approach for emerging real-world applications. Many review articles on carbon allotrope-based OFS mainly focus on a single type of carbon allotrope and the fundamental theory of carbon allotrope-based OFS [8,9]. Thus, this comprehensive review article encompasses the properties, preparation, sensing mechanisms, nanocoating deposition techniques, physical and biochemical sensing applications. This review aims to highlight the recent research work on carbon allotrope-based OFS that will serve as a reference guide for researchers to develop optimal detection approaches for physical parameters or trace level monitoring of chemical and biomolecules. Four groups of carbon allotropes, including carbon nanotubes (CNT), carbon dots (CDs), graphene, and nanodiamonds (NDs), will be studied. Commonly adopted synthesis approaches, classification of various deposition techniques for the integration of carbon allotropes as the thin film coating of OFS as well as numerous examples of these carbon allotrope-based OFS will also be outlined.

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Section: Temperature and Pressurementioning

confidence: 99%

Carbon Allotrope-Based Optical Fibers for Environmental and Biological Sensing: A Review

Yap

Chan

Tjin

et al. 2020

Sensors

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“…Microfibre resonators have demonstrated great potential in temperature sensing [35] because of their high sensitivity, extensive coupling capability, and compact size [36]. It has been reported that evanescent wave propagating through the fibre surface of microfibre resonators interact effectively with the adjacent environment [37]. Therefore, the transmission spectrum of the resonance light is subject to variations in the outer environment [37].…”

Section: Microfibre Resonator Temperature Sensorsmentioning

confidence: 99%

“…It has been reported that evanescent wave propagating through the fibre surface of microfibre resonators interact effectively with the adjacent environment [37]. Therefore, the transmission spectrum of the resonance light is subject to variations in the outer environment [37]. This unique feature of microfibre resonators can be exploited for sensing applications.…”

Section: Microfibre Resonator Temperature Sensorsmentioning

confidence: 99%

“…However, a sharp decrease in linearity and a relatively lower sensitivity of 0.973 nm/°C was observed at a higher temperature range of 40-54 °C caused by the thermal expansion effect of PDMS. This challenge can be overcome by coating another transition film on the PDMS with excellent thermal expansion properties, such as graphene [37], to increase the operating range [38].…”

Section: Microfibre Resonator Temperature Sensorsmentioning

confidence: 99%

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Polymer Optical Fibre Temperature Sensors - A Review

Soge

2020

AJR2P

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Polymer optical fibre (POF) temperature sensors are rapidly replacing conventional temperature sensors owing to their unique and attractive features, such as small size, immunity to electromagnetic interference, multiplexing, and remote sensing capabilities. The recent developments in temperature sensing using polymer optical fibres are presented. Polymer optical fibre (POF) temperature sensors of various types: macro-bend fibre sensors, microfibre resonators, fibre Bragg grating, Fabry-Perot interferometers, and POF sensors coated with zinc oxide nanorods are discussed. This study also includes dual-parameter sensors to demonstrate intrinsic sensitivities of polymer fibres to temperature, relative humidity, and strain. The prospects and challenges of POF temperature sensors in the automotive industry, biomedical sector, chemical industry, and electrical power applications are also highlighted. This review aims to help researchers in this field identify areas of further work towards improving the accuracy and operating range of POF temperature sensors.

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“…Two-dimensional materials, including graphene and reduced graphene oxide, were utilized as sensitive materials to ameliorate the relative humidity sensitivity of the MKR [42]. Graphene or reduced graphene oxide is suitable for gas- or biomolecule adsorption with large surface area, strong affinity, and high adsorption [42,43,44,45,46,47]. After dissolving the graphene oxide in deionized water, the graphene oxide solution was sonicated in an ultrasonic bath for 30 min [43].…”

Section: Relative Humidity Sensors Based On Mkrs With Sensitive Mamentioning

confidence: 99%

Relative Humidity Sensors Based on Microfiber Knot Resonators—A Review

Han

2019

Sensors

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Recent research and development progress of relative humidity sensors using microfiber knot resonators (MKRs) are reviewed by considering the physical parameters of the MKR and coating materials sensitive to improve the relative humidity sensitivity. The fabrication method of the MKR based on silica or polymer is briefly described. The many advantages of the MKR such as strong evanescent field, a high Q-factor, compact size, and high sensitivity can provide a great diversity of sensing applications. The relative humidity sensitivity of the MKR is enhanced by concerning the physical parameters of the MKR, including the waist or knot diameter, sensitive materials, and Vernier effect. Many techniques for depositing the sensitive materials on the MKR surface are discussed. The adsorption effects of water vapor molecules on variations in the resonant wavelength and the transmission output of the MKR are described regarding the materials sensitive to relative humidity. The sensing performance of the MKR-based relative humidity sensors is discussed, including sensitivity, resolution, and response time.

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PDMS-assisted graphene microfiber ring resonator for temperature sensor

Cited by 21 publications

References 27 publications

Carbon Allotrope-Based Optical Fibers for Environmental and Biological Sensing: A Review

Carbon Allotrope-Based Optical Fibers for Environmental and Biological Sensing: A Review

Polymer Optical Fibre Temperature Sensors - A Review

Relative Humidity Sensors Based on Microfiber Knot Resonators—A Review

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