An ultra-fast response gasochromic device for hydrogen gas detection

Chia Hao Hsu, Chung Chieh Chang, Chuan Ming Tseng, Chih Chieh Chan, Wei Hsiang Chao, Yu Ruei Wu, Min Hsueh Wen, Yao Tsung Hsieh, Yi Chih Wang, Chi Liang Chen, Ming Jye Wang, Maw Kuen Wu

研究成果: 雜誌貢獻文章同行評審

26 引文 斯高帕斯(Scopus)

摘要

In the present work, gasochromic tungsten oxide (WO3) thin films on glass substrate were fabricated by Pulsed Laser Deposition (PLD) system. Pt was sputtered on the surface of WO3 thin films as a catalyst layer for hydrogen gas detection. The gasochromic properties of Pt/WO3 thin films at room temperature were determined by examining their optical transmittance under various H2-N2 mixture gas exposures. The results show that in low H2 atmosphere (0.5%) the room temperature grown Pt/WO3 thin films still exhibited noticeable transmittance change, within the visible light (550-700 nm) range. WO 3 thin films have been characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). XRD and TEM confirmed that the morphology of the best performance WO3 thin film is amorphous, and SEM investigations revealed that the thin films were composed of nanotextured grains.
原文英語
頁(從 - 到)193-198
頁數6
期刊Sensors and Actuators, B: Chemical
186
DOIs
出版狀態已發佈 - 2013
對外發佈

ASJC Scopus subject areas

  • 儀器
  • 材料化學
  • 表面、塗料和薄膜
  • 金屬和合金
  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

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