Alcohol sensing of tin oxide thin film prepared by sol�?�gel process

Bulletin of materials science

C Ghanshyam¹  Satinder Singh¹  Nathai Ram¹  Sunita Mishra¹  R P Bajpai¹  R K Bedi² 

[1] Microelectronics Group, Central Scientific Instruments Organization, Sector-30, Chandigarh 160 020, India$$Microelectronics Group, Central Scientific Instruments Organization, Sector-30, Chandigarh 160 020, IndiaMicroelectronics Group, Central Scientific Instruments Organization, Sector-30, Chandigarh 160 020, India$$;Department of Physics, Guru Nanak Dev University, Amritsar 143 005, India$$Department of Physics, Guru Nanak Dev University, Amritsar 143 005, IndiaDepartment of Physics, Guru Nanak Dev University, Amritsar 143 005, India$$

关键词: Solâ€�?�gel;    SnO2;    sensitivity;    response time;    spin-coating method.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The present paper describes the alcohol sensing characteristics of spin coated SnO₂ thin film deposited by using solâ€�?�gel process. The sensitivity of the film was measured at different temperatures and different concentrations of alcohol at ppm level. Alcohol detection result shows peak sensitivity at 623 K. The variation of sensitivity and ethanol concentration has shown a linear relationship up to 1150 ppm and after that it saturates. The response time measurement of the sensor was also observed and it was found that the response time is 30 sec. The results obtained favour the solâ€�?�gel process as a low cost method for the preparation of thin films with a high sensing characteristic.

【 授权许可】

Unknown