Hydrocarbon sensing with thick and thin film p-type conducting perovskite materials
Hydrocarbon sensing with thick and thin film p-type conducting perovskite materials
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DOI：
10.1016/j.snb.2004.12.104
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发表时间：
2005-07-22
影响因子：
8.4
通讯作者：
Post, M
中科院分区：
文献类型：
--
作者：
Sahner, K;Moos, R;Post, M
钙钛矿的p型半导体SrTi 1-xFexO 3-delta家族的成员已被研究作为碳氢化合物传感器应用的新材料。丝网印刷的厚膜器件与通过脉冲激光沉积（PLD）制备的薄膜形成对比。为了提高传感器对碳氢化合物的特异性，铁含量，x，膜厚度和操作温度在300至500摄氏度的范围内的影响进行了研究。此外，已经成功地研究了使用由掺杂铂的沸石制成的催化活性覆盖层来减少具有交叉干扰的物质的影响。提出了一个解释基本传感机制的初始模型。(c)2005 Elsevier B. V.保留所有权利。
The members of the p-type semiconducting SrTi1-xFexO3-delta family of perovskites have been studied as novel materials for hydrocarbon sensor applications. Screen-printed thick film devices are contrasted to thin films prepared by pulsed laser deposition (PLD). In order to enhance sensor specificity towards hydrocarbons, the influence of iron content, x, film thickness and operating temperature in the range from 300 to 500 degrees C has been investigated. In addition, the use of a catalytically active cover layer made of a platinum-doped zeolite has been successfully studied to reduce the influence of species with cross-interference. An initial model explaining the underlying sensing mechanism is proposed. (c) 2005 Elsevier B.V. All rights reserved.