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SnO2-Ag-SnO2结构元件室温下对H2S的敏感特性研究
Gas Sensitive Properties of SnO2-Ag-SnO2 Element to H2S at Room Temperature
【摘要】 以SnCl4和O2为源物质,采用等离子增强化学气相沉积(PECVD)和浸渍法掺Ag技术制备了SnO2-Ag-SnO2结构薄膜,在20℃下该结构薄膜对H2S具有良好的气敏特性,即高灵敏度、良好的选择特性和开关式响应特性。
【Abstract】 SnO2 thin films were prepared using SnCl4 and O2 as precursors by means of plasma enhanced chemical vapor deposition method (PECVD), and were modified with silver (Ag) by soaking technique to form a SnO2-Ag-SnO2 element. The sensing composite thin film sensors were proved to be highly sensitive and selective to H2S at room temperature (20℃). Furthermore, the response speed of the thin film sensors was fairly quick at this temperature.
【基金】 国家自然科学基金资助(40304009)
- 【文献出处】 传感技术学报 ,Chinese Journal of Sensors and Actuators , 编辑部邮箱 ,2006年04期
- 【分类号】TP212
- 【被引频次】9
- 【下载频次】81