Full-color CO2 gas sensing by an inverse opal photonic hydrogel

Hong, Wei; Chen, Yuan; Feng, Xue; Yang, Yan; Hu, Xiaobin; Zhao, Ben; Zhang, Fan; Zhang, Di; Xu, Zhezhuang; Lai, Yijian

doi:10.1039/c3cc44825h

Cited by 70 publications

(66 citation statements)

References 29 publications

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“…17(a) from a purified natural protein, silk fibroin, were fabricated by Sunghwan Kim et al By examining the optical response from their silk IOs (Fig. They present a number of possibilities for functional sensing devices for both gas 144,145,149 and solvent 146,150 detection, provided that material characteristics and design parameters can be tuned for fabrication within specific devices. 17(d) and (e)).…”

Section: B Inverted Opals For Sensor Applicationsmentioning

confidence: 99%

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Artificial opal photonic crystals and inverse opal structures – fundamentals and applications from optics to energy storage

2015

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Photonic crystals (PhCs) influence the propagation of light by their periodic variation in dielectric contrast or refractive index. This review outlines the attractive optical qualities inherent to most PhCs namely the presence of full or partial photonic band gaps and the possibilities they present towards the inhibition of spontaneous emission and the localization of light. Colloidal self-assembly of polymer or silica spheres is one of the most favoured and low cost methods for the formation of PhCs as artificial opals. The state of the art in growth methods currently used for colloidal self-assembly are discussed and the use of these structures for the formation of inverse opal architectures is then presented. Inverse opal structures with their porous and interconnected architecture span several technological arenasoptics and optoelectronics, energy storage, communications, sensor and biological applications. This review presents several of these applications and an accessible overview of the physics of photonic crystal optics that may be useful for opal and inverse opal researchers in general, with a particular emphasis on the recent use of these three-dimensional porous structures in electrochemical energy storage technology. Progress towards all-optical integrated circuits may lie with the concepts of the photonic crystal, but the unique optical and structural properties of these materials and the convergence of PhC and energy storage disciplines may facilitate further developments and non-destructive optical analysis capabilities for (electro)chemical processes that occur within a wide variety of materials in energy storage research.

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Section: B Inverted Opals For Sensor Applicationsmentioning

confidence: 99%

“…Inset in panel (c): the reflectance spectra of the photonic film corresponding to the fractions in (b) 145. (b) The induced colour change of the CO 2 sensitive inverse opal film in pure water after being bubbled with 1 mL CO 2 -N 2 mixtures from 0 to 4.9 vol%.…”

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confidence: 99%

Artificial opal photonic crystals and inverse opal structures – fundamentals and applications from optics to energy storage

2015

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“…Gas sensors have attracted significant attention with the environment attracting more attention [2]. Until now, many methods have been explored with respect to gas detection, [3,4,5,6,7,8,9,10] and metal oxide semiconductors have been extensively developed compared to others in the gas-sensing field, due to the advantages of high sensitivity, fast response and recovery, low detection limits, low fabrication cost, and simplicity in fabrication and measurement [11,12,13,14]. Additionally, it is generally known that the gas-sensing performance of oxide semiconductor sensors is strongly connected with the nanostructure morphology for the reactions of target gases and the sensing materials that are likely to take place at the sensing material’s surface.…”

Section: Introductionmentioning

confidence: 99%

Gas Sensor Based on 3-D WO3 Inverse Opal: Design and Applications

Xing

Zhao

et al. 2017

Sensors

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A three-dimensional inverse opal (3DIO) WO3 architecture has been synthesized via a simple sacrificial template method. Morphology features of the 3DIO were characterized by scanning electron microscope (SEM) and its structure was characterized by X-ray diffraction (XRD). The shrinking ratio of the PMMA spheres was ~28.2% through measuring the distribution of the PMMA spheres and 3DIO WO3 center-to-center distance between the spheres and macropores, respectively. Beyond that, the 3DIO gas sensing properties were investigated systematically and the sensing mechanism of 3DIO WO3 was proposed. The results indicated that the response of the 3DIO sensor possessed excellent sensitivity to acetone gas, especially at trace levels. The 3DIO gas sensor response was ~7 to 5 ppm of acetone and could detect acetone low to 0.2 ppm effectively, which was in close proximity to the theoretical low detection limit of 0.14 ppm when Ra/Rg ≥ 1.2 was used as the criterion for reliable gas sensing. All in all, the obvious satisfaction of the gas-sensing properties was ascribed to the structure of the 3DIO, and the sensor could be a promising novel device in the future.

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“…In the last few decades, developing high-efficiency semiconductors photocatalysts [1][2][3] and gas-sensing materials [4][5][6][7] have attracted increasing interest for application to decomposing harmful organic contaminants and detecting hazardous gases effectively. Recently, the dual function semiconductor materials have become the research hotspot due to their unique physicochemical property [8][9][10].…”

Section: Introductionmentioning

confidence: 99%