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Electrical and optical response of a conducting polymer gas sensor

机译:导电聚合物气体传感器的电和光响应

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摘要

This work deals with the electrical and optical response of poly (o-methoxyaniline) (POMA) thin films exposed to nitrogen and nitrogen with methanol. A low cost apparatus was developed for the optical assessment of the presence of methanol in an ambient. It is shown that thick POMA films exhibits a wide optical absorption variation when in presence of methanol. It was observed that the optical absorption characteristics return to the initial condition when methanol exposition ceases. Electrical response of a photoresistor to methanol showed larger relative variations but also presented large noise interference. A residual drift in the resistance is presented after every cycle and it need to be better evaluated.
机译:这项工作涉及的聚(邻甲氧基苯胺)(POMA)薄膜的电和光响应暴露于氮气和氮气与甲醇。开发了一种低成本的设备,用于光学评估环境中甲醇的存在。结果表明,厚的POMA膜在甲醇存在下表现出宽广的光吸收变化。观察到,当甲醇暴露停止时,光吸收特性返回到初始状态。光敏电阻对甲醇的电响应显示出较大的相对变化,但也表现出较大的噪声干扰。在每个周期后都会出现电阻的残余漂移,需要对其进行更好的评估。

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  • 来源
  • 会议地点 Gramado(BR);Gramado(BR);Gramado(BR);Gramado(BR);Gramado(BR);Gramado(BR)
  • 作者单位

    Departamento de Engenharia de Sistemas Eletronicos, Universidade de Sao Paulo, Sao Paulo, Brazil;

    Departamento de Engenharia de Sistemas Eletronicos, Universidade de Sao Paulo, Sao Paulo, Brazil Institute de Energia e Eletrotecnica, Universidade de Sao Paulo, Sao Paulo, Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 微电子学、集成电路(IC);
  • 关键词

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