bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)

 

205.767

2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2009/2010

Editorial Calendar 2009

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal´s cover

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents

 

Best Articles 2008

 

 

 

Vol. 6, Special Issue, August 2009, pp.57-68

 

 

Bullet

 

Studies on Gas Sensing Performance of Pure and Surface Modified SrTiO3 Thick Film Resistors

 

 1V. B. Gaikwad, 2D. D. Kajale, 2Y. R. Baste, 1S. D. Shinde, 3P. K. Khanna,
4N. K. Pawar, 5D. N. Chavan, 6M. K. Deore, 6*G. H. Jain

1Material Research Lab., K.T.H.M. College, Nashik 422 005, India

2Dept. of chemistry, Arts, Commerce and Science College, Nandgaon 423 106, India

3Centre for Materials for Electronics Technology(C-MET), Pune 411008, India

4Dept. of physics, K. A. A. N. M. S Arts, Commerce and Science College, Satana 423 105, India

5Dept. of chemistry, Arts, Commerce and Science College, Lasalgaon 422 306, India

6Dept. of Physics, Arts, Commerce and Science College, Nandgaon 423 106, India

*E-mail: gotanjain@rediffmail.com

 

 

Received: 10 July 2009   /Accepted: 31 July 2009   /Published: 10 August 2009

 

Abstract: Strontium Titanate (SrTiO3 (ST)) was prepared mechanochemically from Sr(OH)2 and TiO2. XRD confirms the Perovskite phase of material. Thick films of ST were prepared by screen-printing technique. The gas sensing performances of thick films were tested for various gases. It showed maximum sensitivity to CO gas at 350 oC for 100 ppm gas concentration. To improve the sensitivity and selectivity of the film towards a particular gas, ST thick films were surface modified by dipping them in a solution of nano copper for different intervals of time. These surface modified ST films showed larger sensitivity to H2S gas (100 ppm) at 300 oC than pure ST film. A systematic study, of sensing performance of the sensor, indicates the key role-played by the nano copper species on the surface .The sensitivity, selectivity, response and recovery time of the sensor were measured and presented.

 

Keywords: Strontium titanate (SrTiO3, ST), Thick films, CO gas sensor, H2S gas sensor, Sensitivity, Selectivity

 

Acrobat reader logo Click <here> or title of paper to download the full pages article (1.01 Mb)

 

 

 

 


1999 - 2009 Copyright ©, International Frequency Sensor Association (IFSA). All Rights Reserved.


Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - Membership - Submit Press Release

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - e-Shop - Site Map