All-fiber-optic temperature sensor based on reduced graphene oxide

Zhang, Jun; Liao, Guozhen; Jin, Shaoshen; Cao, Dong; Wei, Qingsong; Lu, Huihui; Yu, Jianhui; Cai, Xiang; Tan, Shaozao; Xiao, Yongguang; Tang, Jieyuan; Luo, Yunhan; Chen, Zhe

doi:10.1088/1612-2011/11/3/035901

Cited by 55 publications

(29 citation statements)

References 28 publications

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“…By using the different influence of dynamic conductivity of graphene on the effective refractive index of TE and TM mode, graphenebased optical polarizers were also proposed [27,28]. The influence of temperature on dynamic conductivity [40] is also used to make a graphene-based fiber-optic temperature sensor [29].…”

Section: Introductionmentioning

confidence: 99%

“…SPF is made from general fibers by polishing away a portion of the cladding layer from one side. The interaction between covering material of polished surface and evanescent wave will modulate the optical field inside the core, and this characteristic can be used to make sensors [29,38]. Simple and low cost of fabrication, high compatibility with fiber-optic system, flat polished surface, etc, make SPF the ideal candidate to combine graphene.…”

Section: Introductionmentioning

confidence: 99%

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Reduced graphene oxide for fiber-optic humidity sensing

Xiao¹,

Zhang²,

Cai³

et al. 2014

Opt. Express

Self Cite

103

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Graphene-based electrical chemical vapor sensors can achieve extremely high sensitivity, whereas the comparatively slow sensing response and recovery, the research focused on only low concentration detection, have been known as drawbacks for many applications requiring rapid and high concentration detection. Here we report a novel graphene-based fiber-optic relative humidity (RH) sensor relying on fundamentally different sensing mechanism. The sensor can achieve power variation of up to 6.9 dB in high relative humidity range (70-95%), and display linear response with correlation coefficient of 98.2%, sensitivity of 0.31 dB/%RH, response speed of faster than 0.13%RH/s, and good repeatability in 75-95%RH. Theoretical analysis of sensing mechanism can explain the experimental result, and reveal the broad applying prospect of the sensor for other kinds of chemical vapor detection. This novel graphene-based optical sensor provides a beneficial complement to the existing electrical ones, and will promote the employment of graphene in chemical sensing techniques.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide for fiber-optic humidity sensing

Xiao¹,

Zhang²,

Cai³

et al. 2014

Opt. Express

Self Cite

103

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“…The high thermal conductivity of these nanomaterials makes them interesting candidates and can be exploited as a temperature-sensitive material for temperature sensing. For instance, Zhang et al [1] developed an all-fiber temperature sensor based on rGO. The group described that as the temperature increases, the availability of thermally excited electrons-holes also increases.…”

Section: Thermo-opticmentioning

confidence: 99%

“…Carbon allotropes have been extensively used in many sensing applications for targets such as temperature, pressure, magnetics, environmental pollutants, and biomolecules, either on their own or via other host-supports such as optical fibers, electrodes, and field-effect transistors [1][2][3][4]. Among these technologies, optical fiber-based sensors have attracted significant interest due to the surface versatility of silica or plastic optical fibers that allows a wide range of surface modifications.…”

Section: Introductionmentioning

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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“…[42] Moreover, bi/few-layers GO microsheets that underwent gradual deoxygenation, via thermal reduction, led to GO with different oxygenated functional groups corresponding to different photoluminescent peaks as follows; the yellow-red emission of the studied GO (maximum peak at ≈610 nm) was mainly associated with epoxy/hydroxyl groups, whereas the blue emission (maximum peak at ≈500 nm) was mainly ascribed to the observed carbonyl functional groups. [49,50] Furthermore, this phenomenon can also be judiciously considered in thermal-based biosensing approaches. They reported that the photoluminescent emission can be redshifted from sky-blue (maximum peak at ≈443 nm) to greenishyellow (maximum peak at ≈528 nm) by increasing the oxygen content in the explored material, see Figure 3B.…”

Section: Oxidation Degreementioning

confidence: 99%

Graphene Oxide as an Optical Biosensing Platform: A Progress Report

2018

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IntroductionAs a 2D material, graphene oxide (GO) is a lattice-like nanostructure of hexagonal carbon rings disrupted by oxygen-containing moieties. In 2012, we discussed the outstanding physicochemical properties offered by GO and how these features can be exploited in unprecedented optical biosensing systems. [1] In fact, GO can be processed in suspension, easily complexed with biomolecules, and offers a universal highly efficient long-range photoluminescence quenching agent-among other functional properties. Furthermore, we highlighted that GO photoluminescences with energy transfer donor/acceptor molecules exposed A few years ago, crucial graphene oxide (GO) features such as the carbon/oxygen ratio, number of layers, and lateral size were scarcely investigated and, thus, their impact on the overall optical biosensing performance was almost unknown. Nowadays valuable insights about these features are well documented in the literature, whereas others remain controversial. Moreover, most of the biosensing systems based on GO were amenable to operating as colloidal suspensions. Currently, the literature reports conceptually new approaches obviating the need of GO colloidal suspensions, enabling the integration of GO onto a solid phase and leading to their application in new biosensing devices. Furthermore, most GO-based biosensing devices exploit photoluminescent signals. However, further progress is also achieved in powerful label-free optical techniques exploiting GO in biosensing, particularly using optical fibers, surface plasmon resonance, and surface enhanced Raman scattering. Herein, a critical overview on these topics is offered, highlighting the key role of the physicochemical properties of GO. New challenges and opportunities in this exciting field are also highlighted.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201805043.in a planar surface. [1] However, GO properties can be tailored according to its oxidation degree, lateral size, and number of layers, which was something little explored 6 years ago, and thus their impact on the overall biosensing performance was almost unknown. In addition, most of the biosensing systems based on GO were amenable to working as colloidal suspensions. Though, recent literature reports conceptually new approaches obviating the need of colloidal suspensions, which facilitates integration of GO-based biosensors into the solid phase and allows for their applications in new devices. Furthermore, the majority of the GO-based optical biosensing techniques rely on photoluminescent signals. However, further progress has also been achieved in powerful label-free optical techniques exploiting GO in biosensing. Here, we introduce a progress report on this exciting topic, underscoring challenges and opportunities in (bio)sensing accordingly. Number of LayersGO aqueous suspensions are highly stable in the form of mono layers. However, GO multilayer films can be built via

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All-fiber-optic temperature sensor based on reduced graphene oxide

Cited by 55 publications

References 28 publications

Reduced graphene oxide for fiber-optic humidity sensing

Reduced graphene oxide for fiber-optic humidity sensing

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

Graphene Oxide as an Optical Biosensing Platform: A Progress Report

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