Surface chemistry of SnO2 nanowires on Ag-catalyst-covered Si substrate studied using XPS and TDS methods.
作者： Michal Sitarz , Monika Kwoka , Elisabetta Comini , Dario Zappa , Jacek Szuber
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摘要: In this paper we investigate the surface chemistry, including contaminations, of SnO2 nanowires deposited on Ag-covered Si substrate by vapor phase deposition (VPD), thanks to x-ray photoelectron spectroscopy (XPS) in combination with thermal desorption (TDS). Air-exposed are slightly non-stoichiometric, and a huge amount C contaminations is observed at their surface. After physical (TPD) process, become almost stoichiometric without any contaminations. This probably related fact that as well residual gases from air, weakly bounded crystalline can be easily removed The obtained results gave us insight interpretation aging effect great importance for potential application development novel chemical nanosensor devices.
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Solid state gas sensing Springer. ,(2009) , 10.1007/978-0-387-09665-0
Elisabetta Comini, Guido Faglia, Matteo Ferroni, Andrea Ponzoni, Alberto Vomiero, Giorgio Sberveglieri, Metal oxide nanowires: Preparation and application in gas sensing Journal of Molecular Catalysis A-chemical. ,vol. 305, pp. 170- 177 ,(2009) , 10.1016/J.MOLCATA.2009.01.009
Wolfgang Göpel, Klaus Dieter Schierbaum, SnO2 sensors: current status and future prospects Sensors and Actuators B: Chemical. ,vol. 26, pp. 1- 12 ,(1995) , 10.1016/0925-4005(94)01546-T
G SBERVEGLIERI, C BARATTO, E COMINI, G FAGLIA, M FERRONI, A PONZONI, A VOMIERO, Synthesis and characterization of semiconducting nanowires for gas sensing Sensors and Actuators B-chemical. ,vol. 121, pp. 208- 213 ,(2007) , 10.1016/J.SNB.2006.09.049
B. Wang, L. F. Zhu, Y. H. Yang, N. S. Xu, G. W. Yang, Fabrication of a SnO2 Nanowire Gas Sensor and Sensor Performance for Hydrogen Journal of Physical Chemistry C. ,vol. 112, pp. 6643- 6647 ,(2008) , 10.1021/JP8003147
Satyanarayana V.N.T. Kuchibhatla, A.S. Karakoti, Debasis Bera, S. Seal, One dimensional nanostructured materials Progress in Materials Science. ,vol. 52, pp. 699- 913 ,(2007) , 10.1016/J.PMATSCI.2006.08.001
Ayan Kar, Michael A Stroscio, Mitra Dutta, Jyoti Kumari, M Meyyappan, Growth and properties of tin oxide nanowires and the effect of annealing conditions Semiconductor Science and Technology. ,vol. 25, pp. 024012- ,(2010) , 10.1088/0268-1242/25/2/024012
N. Barsan, Markus Schweizer-Berberich, Wolfgang Göpel†, Fundamental and practical aspects in the design of nanoscaled SnO2 gas sensors : a status report Fresenius Journal of Analytical Chemistry. ,vol. 365, pp. 287- 304 ,(1999) , 10.1007/S002160051490
M. Kwoka, N. Waczyńska, P. Kościelniak, M. Sitarz, J. Szuber, X-ray photoelectron spectroscopy and thermal desorption spectroscopy comparative studies of L-CVD SnO2 ultra thin films Thin Solid Films. ,vol. 520, pp. 913- 917 ,(2011) , 10.1016/J.TSF.2011.04.185
M. Kwoka, L. Ottaviano, M. Passacantando, S. Santucci, G. Czempik, J. Szuber, XPS study of the surface chemistry of L-CVD SnO2 thin films after oxidation Thin Solid Films. ,vol. 490, pp. 36- 42 ,(2005) , 10.1016/J.TSF.2005.04.014