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溶膠復(fù)合提高WO3氣致變色薄膜氫敏特性
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上海市特殊人工微結(jié)構(gòu)材料與技術(shù)重點實驗室,上海市特殊人工微結(jié)構(gòu)材料與技術(shù)重點實驗室,上海市特殊人工微結(jié)構(gòu)材料與技術(shù)重點實驗室,上海市特殊人工微結(jié)構(gòu)材料與技術(shù)重點實驗室,上海市特殊人工微結(jié)構(gòu)材料與技術(shù)重點實驗室,上海市特殊人工微結(jié)構(gòu)材料與技術(shù)重點實驗室

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國家自然科學(xué)基金 (51272179)


Sol- Sol doping WO3 Gasochromic Thin Films withImproved Hydrogen-Sensing Properties
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Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University

Fund Project:

National Natural Science Foundation of China (51272179)

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    摘要:

    本文制備了一種WO3-TiO2-SiO2溶膠，通過浸漬提拉法制備了適用于室溫下的光學(xué)氫敏薄膜。采用FT-IR, SEM, TEM, AFM，XPS以及紫外-可見-近紅外光譜對復(fù)合薄膜的結(jié)構(gòu)及氣致變色性能進行了表征。盡管TiO2并沒有復(fù)合到薄膜中，但其在溶膠中引導(dǎo)了新的WO3顆粒的生成。這種顆粒分布在薄膜表面使得其表面粗糙度得到提高。氣敏測試顯示復(fù)合薄膜較未復(fù)合薄膜擁有更好的氣敏性能。這種提升應(yīng)當(dāng)來源于WO3顆粒帶來的更高的表面粗糙度。

    Abstract:

    WO3-TiO2-SiO2 sol has been prepared for dip coating room-temperature optical hydrogen-sensing thin films. FT-IR, SEM, TEM, AFM, XPS and UV-VIS-NIR spectroscopy have been used to analyze the compound films and its gasochromic properties. Though TiO2 did not doping into the film, it can form WO3 particles during the doping stage in sol. These particles have well spread on the films and improved the roughness of the films. The results of UV-VIS-NIR spectroscopy indicated that TiO2-doped films show better sensitivity than WO3-SiO2 films. The improvement of sensitivity may be assigned to the existence of WO3 particles and high roughness of the films.

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王浩然,高國華,吳廣明,張增海,沈軍,周斌.溶膠復(fù)合提高WO3氣致變色薄膜氫敏特性[J].稀有金屬材料與工程,2018,47(S2):94~98.[Wang Haoran, Gao Guohua, Wu Guangming, Zhang Zenghai, Shen Jun, Zhou Bin. Sol- Sol doping WO3 Gasochromic Thin Films withImproved Hydrogen-Sensing Properties[J]. Rare Metal Materials and Engineering,2018,47(S2):94~98.]
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  • 收稿日期:2017-12-04
  • 最后修改日期:2018-02-14
  • 錄用日期:2018-02-22
  • 在線發(fā)布日期: 2018-11-01
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