Optical properties and sensing applications of lithium iron phosphate thin films

Nizamidin, Patima; Yimit, Abliz; Wang, Ji De; Itoh, Kiminori

doi:10.1016/j.tsf.2012.05.024

Cited by 22 publications

(11 citation statements)

References 25 publications

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“…This gas sensor system is similar to that described in previous reports [ 42 , 43 , 44 ]. The gas-testing apparatus [ 45 ] was composed of a compressed air source and an Nf-TNPP-film OWG gas-sensitive element, a laser source, a flow meter, a diffusion tube, a light detector, and a recorder. A gas-mixing manifold, into which VOCs and a stream of pure air were introduced, was used for mixing and introducing the mixture into the flow cell, which enclosed the waveguide sensor.…”

Section: Sensing Apparatus and Proceduresmentioning

confidence: 99%

A Functionalized Tetrakis(4-Nitrophenyl)Porphyrin Film Optical Waveguide Sensor for Detection of H2S and Ethanediamine Gases

Tuerdi

Kari

Yin

et al. 2017

Sensors

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The detection of hydrogen sulfide (H2S) and ethanediamine, toxic gases that are emitted from industrial processes, is important for health and safety. An optical sensor, based on the absorption spectrum of tetrakis(4-nitrophenyl)porphyrin (TNPP) immobilized in a Nafion membrane (Nf) and deposited onto an optical waveguide glass slide, has been developed for the detection of these gases. Responses to analytes were compared for sensors modified with TNPP and Nf-TNPP composites. Among them, Nf-TNPP exhibited significant responses to H2S and ethanediamine. The analytical performance characteristics of the Nf-TNPP-modified sensor were investigated and the response mechanism is discussed in detail. The sensor exhibited excellent reproducibilities, reversibilities, and selectivities, with detection limits for H2S and ethanediamine of 1 and 10 ppb, respectively, and it is a promising candidate for use in industrial sensing applications.

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Section: Sensing Apparatus and Proceduresmentioning

confidence: 99%

A Functionalized Tetrakis(4-Nitrophenyl)Porphyrin Film Optical Waveguide Sensor for Detection of H2S and Ethanediamine Gases

Tuerdi

Kari

Yin

et al. 2017

Sensors

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“…Thus, the detection and measurement of xylene are of great significance. Hitherto, various techniques and methods such as gas chromatography technique, optical waveguide technique, optical planar Bragg grating sensors, chemical sensors, biosensors, and magnetoelastic sensors have been employed to detect xylene, among which chemical sensors based on metal oxide semiconductor receive great attention due to their good performance, low cost, portability, convenient fabrication, and operating process, etc …”

Section: Introductionmentioning

confidence: 99%

Preparation and Xylene‐Sensing Properties of Co₃O₄ Nanofibers

Feng

et al. 2013

Int J Applied Ceramic Tech

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Co 3 O 4 nanofibers were prepared by an electrospinning method and characterized by differential thermal and thermal gravimetric analyzer (DTA-TGA), X-ray diffraction (XRD), Fourier Transform Infrared Spectrometer (FT-IR), and scanning electron microscopy (SEM). Xylene-sensing properties of the as-prepared nanofibers were also investigated in detail. The results showed that the morphology of the as-prepared fibers was largely influenced by the calcination temperature. The Co 3 O 4 nanofibers calcined at 500°C exhibited the highest response to xylene in a wide concentration range. Moreover, Co 3 O 4 nanofibers calcined at 500°C also exhibited good selectivity, fast response (15 s) and recovery (22 s) rate at a low operating temperatures of 255°C. These properties make the fabricated nanofibers good candidates for xylene detection.

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“…Therefore, the evanescent wave generated at the interface between the waveguide layer and the sensitive film by the laser, which transmitted in the waveguide layer at total reflection mode can be used as a probe to detect the analyte (Scheme 1). OWG sensors own the advantages of high sensitivity, fast response time, and system compactness, and they have witnessed widespread application in the detecting cell [19,20,21], biological molecules [22,23], and metal ions [24], as well as in the detection of low-concentration gas (such as xylene [25,26], chlorobenzene [27], ammonia [28], trimethylamine [29], and hydrogen chloride [30]). Inspired by these advantages, we developed an OWG sensor that is low-cost and has both a real-time and sensitive detection DCP vapor.…”

Section: Introductionmentioning

confidence: 99%

A Potassium Ion-Exchanged Glass Optical Waveguide Sensor Locally Coated with a Crystal Violet-SiO2 Gel Film for Real-Time Detection of Organophosphorus Pesticides Simulant

Du¹,

Tong²,

Mu³

et al. 2019

Sensors

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An optical waveguide (OWG) sensor was developed for real-time detection of diethyl chlorophosphate (DCP) vapor, which is a typical simulant for organophosphorus pesticides and chemical weapon agents. Silica gel, crystal violet (CV), and potassium ion-exchange (PIE) OWG were used to fabricate the sensor’s device. In the real-time detection of the DCP vapor, the volume fraction of DCP vapor was recorded to be as low as 1.68 × 10−9. Moreover, the detection mechanism of CV-SiO2 gel film coated the PIE OWG sensor for DCP, which was evaluated by absorption spectra. These results demonstrated that the change of output light intensity of the OWG sensor significantly increased with the augment of the DCP concentration. Repeatability as well as selectivity of the sensors were tested using 0.042 × 10−6 and 26.32 × 10−6 volume fraction of the DCP vapor. No clear interference with the DCP detection was observed in the presence of other common solvents (e.g., acetone, methanol, dichloromethane, dimethylsulfoxide, and tetrahydrofuran), benzene series (e.g., benzene, toluene, chlorobenzene, and aniline), phosphorus-containing reagents (e.g., dimethyl methylphosphonate and trimethyl phosphate), acid, and basic gas (e.g., acetic acid and 25% ammonium hydroxide), which demonstrates that the OWG sensor could provide real-time, fast, and accurate measurement results for the detection of DCP.

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Optical properties and sensing applications of lithium iron phosphate thin films

Cited by 22 publications

References 25 publications

A Functionalized Tetrakis(4-Nitrophenyl)Porphyrin Film Optical Waveguide Sensor for Detection of H2S and Ethanediamine Gases

A Functionalized Tetrakis(4-Nitrophenyl)Porphyrin Film Optical Waveguide Sensor for Detection of H2S and Ethanediamine Gases

Preparation and Xylene‐Sensing Properties of Co₃O₄ Nanofibers

A Potassium Ion-Exchanged Glass Optical Waveguide Sensor Locally Coated with a Crystal Violet-SiO2 Gel Film for Real-Time Detection of Organophosphorus Pesticides Simulant

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Optical properties and sensing applications of lithium iron phosphate thin films

Cited by 22 publications

References 25 publications

A Functionalized Tetrakis(4-Nitrophenyl)Porphyrin Film Optical Waveguide Sensor for Detection of H2S and Ethanediamine Gases

A Functionalized Tetrakis(4-Nitrophenyl)Porphyrin Film Optical Waveguide Sensor for Detection of H2S and Ethanediamine Gases

Preparation and Xylene‐Sensing Properties of Co3O4 Nanofibers

A Potassium Ion-Exchanged Glass Optical Waveguide Sensor Locally Coated with a Crystal Violet-SiO2 Gel Film for Real-Time Detection of Organophosphorus Pesticides Simulant

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Preparation and Xylene‐Sensing Properties of Co₃O₄ Nanofibers