Xingchen GU, Lijun LI, Qian MA, Jiajia SUN, Min LI, Changsheng SHAO, Yumeng LÜ. A Polyaniline Membrane Micro-nano Fiber Hydrogen Ion Probe[J]. Acta Photonica Sinica, 2021, 50(5): 166
- Acta Photonica Sinica
- Vol. 50, Issue 5, 166 (2021)
Fig. 1. Schematic diagram of micro-nano fiber optic hydrogen ion concentration probe sensing structure
Fig. 2. Structural changes in the main chain of polyaniline bound to hydrogen ions.
Fig. 3. Diagram of experimental setup for hydrogen ion concentration sensing
Fig. 4. Microscope photo comparison before and after lamination
Fig. 5. Spectrum superimposition of micronaire fiber optic hydrogen ion probe
Fig. 6. Linear fitting of micro-nanofiber hydrogen ion concentration probe wavelength with increasing hydrogen ion concentration
Fig. 7. Linear fit of fiber optic probe wavelength with hydrogen ion concentration for different polyaniline film thickness
Fig. 8. Fluctuation of the wave valley of a micro-optic hydrogen ion concentration probe with the refractive index of sodium chloride solutions
Fig. 9. Fluctuation of the wave valley of a micro-optic hydrogen ion concentration probe with the refractive index of sucrose solutions
Fig. 10. Response-recovery curve of micro-nanofiber hydrogen ion concentration probe
Fig. 11. Linear fitting of micro-nanofiber hydrogen ion concentration probe wavelength with hydrogen ion concentration
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