A room temperature hydrogen sulfide gas sensor based on electrospun polyaniline–polyethylene oxide nanofibers directly written on flexible substrates

Abstract

Electrospun polyaniline–polyethylene oxide nanofibers are directly written on a flexible substrate and utilized for room temperature sensing of hydrogen sulfide.

Near-Infrared Laser-Annealed IZO Flexible Device as a Sensitive H2S Sensor at Room Temperature

“…In prior reports, when using SnO 2 or Cu-doped ZnO to detect H 2 S, a current increase was observed upon exposure to H 2 S with ppm-regime concentrations. [36,[38][39][40] Other recent reports [29][30][31][41][42][43][44] for H 2 S sensing are compared in Finally, we evaluate sensing selectivity. Figure 4f shows the sensing response to ammonia (NH 3 ), acetone (denoted as ACE), nitrogen monoxide (NO), and hydrogen sulfide (H 2 S) with a gas concentration of 1 ppm.…”

Extremely Flexible Indium‐Gallium‐Zinc Oxide (IGZO) Based Electronic Devices Placed on an Ultrathin Poly(Methyl Methacrylate) (PMMA) Substrate

“…In general, the substrate having the electronic devices plays an important role in their flexibility. To date, polyimide (PI) has been widely utilized as a flexible substrate due to its excellent dielectric property, and good chemical and thermal stability . However, commercially available PI is not transparent, which limits its use in display applications, and conformal contact of PI substrate onto nonplanar surfaces such as gloves, flexible poly(vinyl chloride) (PVC) tubes, or cotton by using a glue is impractical.…”

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deformation is highly recommended for wearable electronics placed on any textile products and/or hand gloves. [22][23][24][25][26][27] However, commercially available PI is not transparent, which limits its use in display applications, and conformal contact of PI substrate onto nonplanar surfaces such as gloves, flexible poly(vinyl chloride) (PVC) tubes, or cotton by using a glue is impractical.To attain both high flexibility and conformal contact of electronic devices, researchers have designed free-standing organic devices, in which a polymer dielectric layer (e.g., polystyrene, polyacrylonitrile, polylactide) or organic active layer (e.g., pentacene) itself acts as a substrate. To date, polyimide (PI) has been widely utilized as a flexible substrate due to its excellent dielectric property, and good chemical and thermal stability.

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Electrospun porous hybrid CuO/CdO nanofibers using carboxylic-functionalized poly(arylene ether ketone)s as a template for glucose determination

“…[3][4][5][6][7] It has been found that the structure with high specific surface area and length-to-diameter ratios can exhibit much more excellent performance in catalyst, gas sensor, humidity sensors, and biosensors. [8][9][10][11] Thus, many methods including electrochemical deposition, hydrothermal process, wet chemical methods, sonochemical methods, templating methods, and so on 12,13 have been developed for the nanomaterial preparation. Among these methods, due to the specialties of straightforward, versatile, and cost-effective, [14][15][16] electrospinning is considered as the most functional way to fabricate NFs.…”