Tin dioxide sol-gel derived thin films deposited on porous silicon

Cobianu, Cornel and Savaniu, Cristian and Buiu, Octavian and Dascalu, Dan and Zaharescu, Maria and Parlog, Constanta and Berg van den, Albert and Pecz, Bela (1997) Tin dioxide sol-gel derived thin films deposited on porous silicon. Sensors and Actuators B: Chemical, 43 (1-3). pp. 114-120. ISSN 0925-4005

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Abstract:	Undoped and Sb-doped SnO2 sol¿gel derived thin films have been prepared for the first time from tin (IV) ethoxide precursor and SbCl3 in order to be utilised for gas sensing applications where porous silicon is used as a substrate. Transparent, crack-free and adherent layers were obtained on different types of substrates (Si, SiO2/Si). The evolution of the Sn¿O chemical bonds in the SnO2 during film consolidation treatments was monitored by infrared spectroscopy. By energy dispersive X-ray spectroscopy performed on the cross section of the porosified silicon coupled with transmission electron microscopy, the penetration of the SnO2 sol¿gel derived films in the nanometric pores of the porous silicon has been experimentally proved.
Item Type:	Article
Copyright:	© 1997 Elsevier Science
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Biomedical and Environmental Sensor systems (BIOS)
Link to this item:	http://purl.utwente.nl/publications/14548
Official URL:	http://dx.doi.org/10.1016/S0925-4005(97)00196-2
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