Ultrahigh Sensitive Temperature Sensor Based on Fabry–Pérot Interference Assisted by a Graphene Diaphragm

Li, Ling; Feng, Zhouming; Qiao, Xueguang; Yang, Hangzhou; Wang, Ruohui; Su, Dan; Wang, Yupeng; Bao, Weijia; Li, Jiacheng; Shao, Zhihua; Hu, Manli

doi:10.1109/jsen.2014.2361174

Cited by 35 publications

(16 citation statements)

References 21 publications

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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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Section: Oxidation Degreementioning

confidence: 99%

Graphene Oxide as an Optical Biosensing Platform: A Progress Report

2018

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“…The similar structure has become a promising candidate on different measured parameters such as vibration [10], adhesion energy [11], thermal expansion [12], and biomolecules [13].The FPI based on graphene is demonstrated to have a pressure sensitivity of more than 39.4 nm/kPa for a diaphragm diameter of 25μm [14]. The same sensor structure with a graphene film is experimentally demonstrated for temperature measurement [15], and dip wavelengths are employed to demonstrate a change in the temperature. The proposed sensor exhibits an ultrahigh sensitivity of 1.56 and 1.87 nm/°C in wavelength change at temperatures of 500-510 °C and 1000-1008 °C, respectively.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Measurement of Pressure and Temperature Based on Graphene

Dong

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Similarly, air-sealed FPIs have also been obtained by employing special fibers or tubes such as silica capillaries and photonic crystal fibers [5]- [7]. Solid-cavity fiber FPIs are another kind of sealed-cavity FPIs, which are usually formed by splicing fibers with different material [8]. Some hybrid FP structures were also proposed for simultaneous multi-parameter measurement [9]- [12], [14], [18].…”

Section: Introductionmentioning

confidence: 99%

Open-Cavity Fabry-Perot Interferometer Based on Etched Side-Hole Fiber for Microfluidic Sensing

Yan

Zhou

et al. 2015

IEEE Photon. Technol. Lett.

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An open-cavity fiber-optic Fabry-Perot interferometer (FPI) is designed and demonstrated, with a particular consideration for microfluidic refractive index (RI) sensing. The FPI is composed of an etched side-hole fiber (SHF) sandwiched between two single-mode-fibers. Chemical etching method is used to open up the cavity in the SHF. Experimental results show that an optimal RI sensitivity of more than 1250 nm/RI can be achieved with an open-cavity length of 38 µm for the microfluidic RI range from 1.3400 to 1.3470. In addition, the temperature sensitivity can reach an ultralow level of 1.1 pm/°C. The ease of fabrication, capability for in situ measurement, and excellent performance results suggest that the proposed FPI is highly promising as an inline refractometer for temperature-insensitive label-free microfluidic detection and sensing.

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Ultrahigh Sensitive Temperature Sensor Based on Fabry–Pérot Interference Assisted by a Graphene Diaphragm

Cited by 35 publications

References 21 publications

Graphene Oxide as an Optical Biosensing Platform: A Progress Report

Graphene Oxide as an Optical Biosensing Platform: A Progress Report

Simultaneous Measurement of Pressure and Temperature Based on Graphene

Open-Cavity Fabry-Perot Interferometer Based on Etched Side-Hole Fiber for Microfluidic Sensing

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