ISSN 236 - 56984

LOGIN

BEST PAPER AWARDS

International Journal of Chemical Concepts Will give best paper award in every issue in the from of money along with certificate to promote research .

Best Article of current issue

Download Article : Click here

JOURNALS LINK

International Journal of ChemTech Research
www.sphinxsai.com

International Journal of MediPharm Research
www.medipharmsai.com

International Journal of TechnoChem Research
www.technochemsai.com

ABSTRACT

Gas Sensing Properties of Nanocrystalline Fiber like Structure of CdS thin films for H2S gas detection

S. M. Patil, D.S. Patil and P. H. Pawar

ABSTRACT

In this work, growth, characterization and gas sensing performance of fiber like structure thin films of CdS by chemical bath deposition (CBD) technique using the reaction between cadmium sulphate, thiourea and NH3 in an aqueous solution has been reported. The films of were deposited at different pH (9, 9.5, and 10) onto glass substrate at 65 oC. Characterization includes a different analytical technique such as, X-ray diffaractogram (XRD), Field emission scanning electron microscope (FE-SEM) and energy dispersive X-ray analysis (EDAX). The films deposited for pH =10 was observed to be most sensitive (S = 79) to H2S for 5 ppm at 50 oC. The response and recovery time is 7 sec, 12 sec respectively. The results are discussed and interpreted. Keywords: fibre like structure, CdS thin films, chemical bath deposition technique, gas sensor system, response and recovery time.

[Full Text Article]