bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2011

Editorial Calendar 2011

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

Sensors & Transducers Journal 2009

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 2009




Vol. 9, Special Issue, December 2010, pp.11-20



Formulation and Characterization of Cu Doped ZnO Thick Films as LPG Gas Sensor



2S. J. PATIL, and 2R. Y. BORSE

1 L.V.H. College, Panchavati, Nashik 422003, Maharashtra, India

Tel.: +919604828463

2 Thin and Thick film Laboratory, Dept. of Electronics, M.S.G.College, Malegaon Camp

423105, Dist. Nashik, Maharashtra, India

*E-mail: patilav_777@yahoo.co.in, aruptl@gmail.com



Received: 27 September 2010   /Accepted: 30 November 2010   /Published: 30 December 2010


Abstract: Thick films of pure and various concentrations (1 wt. %, 3 wt. %, 5 wt. %, 7 wt. % and 10 wt. %) of Cu-doped ZnO were prepared on alumina substrates using a screen printing technique. These films were fired at a temperature of 700șC for two hours in an air atmosphere. Morphological, compositional and structural properties of the samples were obtained using the scanning electron microscopy (SEM), Energy dispersive spectroscopy (EDAX) and X-ray diffraction techniques respectively. The LPG gas sensing properties of these thick films were investigated at different operating temperatures and LPG gas concentrations. The surface resistance of thick films decreases when exposed to LPG gas. The Cu doped films show significant sensitivity to LPG gas than pure ZnO film. 5 wt. % Cu-doped ZnO film was found to be more sensitive (87.3 %) to LPG gas exposed at 300 oC than other doping concentrations with fast response and recovery time.


Keywords: ZnO, Cu, Thick films, Screen printing, LPG


Acrobat reader logo Click <here> or title of paper to download the full pages article (1.85 Mb)



Read more about  Gas Sensors






1999 - 2010 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 - Twitter

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