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<p>Fiber optic gas sensors have the advantages of room temperature sensing and their ability to detect gas at explosive and inaccessible locations. Nitrogen and boron co-doped graphene oxide (BNG) was synthesized efficiently and quickly by a single-step nanosecond pulse laser ablation (ns-PLAL) of graphene in ethanol. FT-IR and XPS confirm the nitrogen and boron doping on the surface of the graphene oxide (GO). The optical properties of BNGs were studied using UV-Vis analysis. FESEM confirms the spherical shape of BNG, and the average size of BNGs is 50–60&#xa0;nm. Raman analysis was carried out on structural and crystallinity studies. The spherical-shaped BNG nanoparticle has been tested for sensitivity to room-temperature clad-modified fiber optic gas sensors with toxic gases like acetone, ammonia and ethanol. The gas sensing property of BNG was investigated using a fiber optic gas sensor, which was found to show good sensitivity and selectivity towards ethanol gas. The BNG nanoparticle demonstrates excellent characteristics for gas sensing due to its selective sensitivity and is a promising candidate for clad-modified fiber optic gas sensors.</p>

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Single-step synthesis of N, B co-doped graphene oxide by nanosecond pulsed laser ablation in liquid for clad-modified fiber optic gas sensing application

  • 期刊论文

  • 发表日期：

    2025年6月30日

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  • Rohini Puliyasseri,
  • Kalai Priya Anbalagan,
  • Dillibabu Sastikumar

摘要

Fiber optic gas sensors have the advantages of room temperature sensing and their ability to detect gas at explosive and inaccessible locations. Nitrogen and boron co-doped graphene oxide (BNG) was synthesized efficiently and quickly by a single-step nanosecond pulse laser ablation (ns-PLAL) of graphene in ethanol. FT-IR and XPS confirm the nitrogen and boron doping on the surface of the graphene oxide (GO). The optical properties of BNGs were studied using UV-Vis analysis. FESEM confirms the spherical shape of BNG, and the average size of BNGs is 50–60 nm. Raman analysis was carried out on structural and crystallinity studies. The spherical-shaped BNG nanoparticle has been tested for sensitivity to room-temperature clad-modified fiber optic gas sensors with toxic gases like acetone, ammonia and ethanol. The gas sensing property of BNG was investigated using a fiber optic gas sensor, which was found to show good sensitivity and selectivity towards ethanol gas. The BNG nanoparticle demonstrates excellent characteristics for gas sensing due to its selective sensitivity and is a promising candidate for clad-modified fiber optic gas sensors.