Оптичні властивості наноструктурованих плівок WO3

Nanostructured hydrated WO3 films deposited on glass and on glass with a layer of SnO2 or with Au film have been obtained by chemical and electrochemical methods. The angular and spectral dependences of total internal reflection and surface plasmon resonance for different values of oxide potential h...

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Datum:2011
Hauptverfasser: Fomanyuk, S. S., Kolbasov, G. Ya., Krasnov, Yu. S., Zaichenko, V. N.
Format: Artikel
Sprache:Russisch
Veröffentlicht: Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine 2011
Online Zugang:https://www.cpts.com.ua/index.php/cpts/article/view/107
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Назва журналу:Chemistry, Physics and Technology of Surface

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Chemistry, Physics and Technology of Surface
Beschreibung
Zusammenfassung:Nanostructured hydrated WO3 films deposited on glass and on glass with a layer of SnO2 or with Au film have been obtained by chemical and electrochemical methods. The angular and spectral dependences of total internal reflection and surface plasmon resonance for different values of oxide potential have been measured on fabricated planar glass-WO3 and glass-Au-WO3 structures placed in an electrolyte (0,5M H2SO4). These dependences were compared with the results of computer simulation, using experimental values of n and k for these WO3 films, prepared by interferometry. It has been shown that in presence of thin catalyst layer (Pt or Pd) on  WO3 surface optical hydrogen sensors for the determination of hydrogen content in  air at 0-5 vol.% H2 can be created  based on these structures.