bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)

 

 

25 Top Downloaded Articles

Editorial Calendar 2007

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers Journal's cover

 

Sensors & Transducers Journal 2006

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

 

  Best Articles 2006

   

 

 

Vol. 81, Issue 7, July 2007, pp. 1354-1363

 

Bullet

 

Al2O3-modified ZnO Based Thick Film Resistors for H2-gas Sensing

 

D. R. PATIL, L. A. PATIL*,

Materials Research Lab, Pratap College, Amalner, 425 401, India

*Corresponding author tel.:+91-02587-224226

E-mail: plalchand_phy_aml@yahoo.co.in

 

 

Received: 10 March 2007   /Accepted: 16 July 2007   /Published: 23 July 2007

 

Abstract: Thick films of pure and Al2O3 doped ZnO were prepared by screen printing technique. The gas sensing performance of these films for various gases was tested. Both pure and Al2O3-doped ZnO based sensors showed highest responses to H2 gas with poor response to former as compared to later. Al2O3 (3 wt %) doped ZnO thick films showed response to H2 gas as high as 143 while pure ZnO thick films showed poor (28) to H2 gas. Doped ZnO showed quick response and fast recovery to H2 gas. The quick response and fast recovery are the main features of this sensor. The effects of microstructure and additive concentration on the gas response, selectivity, response time and recovery time of the sensor in the presence of H2 gas were studied and discussed.

 

Keywords: Al2O3 doped ZnO, H2 gas sensor, Gas response, Response time, Recovery time

 

Acrobat reader logo Click <here> or title of paper to download the full pages article (630 K)

 

 

 

 


1999 - 2007 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.


Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - e-Shop - Membership

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