Xingquan Wang, Zhenglan Bian. Preparation and Sensing Properties of Pt-WO3 Nano-Hydrogen-Sensitive Film[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0731001
- Laser & Optoelectronics Progress
- Vol. 60, Issue 7, 0731001 (2023)
Fig. 1. XRD pattern of Pt-WO3 nano film
Fig. 2. FE-SEM image of Pt-WO3 nano film(×50000)
Fig. 3. FE-SEM image of Pt-WO3 nano film (×1000)
Fig. 4. EDS spectrum of Pt-WO3 nano film
Fig. 5. Transmission hydrogen sensor system diagram
Fig. 6. Transmission power curves of Pt-WO3 nano-films at different annealing temperatures
Fig. 7. Photograph of Pt-WO3 nano film when annealing at 400 ℃. (a)Film is placed in the air; (b) film is placed in a hydrogen gas chamber with a volume fraction of 5% for about 5 min
Fig. 8. Hydrogen response amplitude change rate curve of the film at different annealing temperatures
Fig. 9. Film repeatability test results at 400 ℃ annealing temperature
Fig. 10. Reduction time curve of thin films under different hydrogen volume fractions
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