1970
DOI: 10.1002/hlca.19700530529
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Über die spektrale Sensibilisierung von Zinkoxid: I. Sorptionsverhalten von o,o′‐Dihydroxyazofarbstoffen

Abstract: o,o′‐Dihydroxyazo compounds are spectral sensitizers for the photosemiconductor properties of zinc oxide. It is shown that 1‐(2‐hydroxyphenylazo‐)‐2‐naphthol (II) forms a 1:1 Zn complex on the surface of ZnO particles if adsorbed from toluene solution. With most samples of ZnO a Langmuir type adsorption isotherm is obtained. The concentration of the dye at saturation relative to the BET surface of the ZnO particles correponds to a slightly oblique edge‐on arrangement of the dye molecules on the surfaces. In th… Show more

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Cited by 13 publications
(1 citation statement)
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“…It was shown that the formed complexes contain zinc that was originally on the particle surfaces. Furthermore, the formation of tail-like complexes have been shown by electron microscopy by Brändli et al …”
Section: Discussionmentioning
confidence: 92%
“…It was shown that the formed complexes contain zinc that was originally on the particle surfaces. Furthermore, the formation of tail-like complexes have been shown by electron microscopy by Brändli et al …”
Section: Discussionmentioning
confidence: 92%