Document
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Semiconductor Science and Technology
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type: Thing
type: Journal
type: Periodical
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type: Generically Dependent Continuant
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publication venue for: Morphology and photoelectrochemical behaviour of CdSe/ZnO composites obtained by the screen printing technique

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Morphology and photoelectrochemical behaviour of CdSe/ZnO composites obtained by the screen printing technique
type: Continuant
has publication venue: Semiconductor Science and Technology
related by: authorship 3852
type: Entity
type: Document
issue: 5
related by: authorship 3855
type: Generically Dependent Continuant
related by: authorship 3853
most specific type: Document
date time value: article date 782
page start: 390
abstract: We report the morphology and photoelectrochemical (PEC) behaviour of CdSe/ZnO composite coatings prepared by the screen-printing and sintering technique. Precipitates of two different chemical baths were used for the screen-printing process. Atomic force microscopy images show that the topography of the composite coatings depends on the precipitate. Superior PEC performance and stability are obtained for the composite based on the precipitate of a dimethyl selenourea bath, which has a well formed polycrystalline surface with a narrow distribution of cluster sizes. The lower diffuse reflectance and smoother topography of these coatings, when compared to the composite based on the precipitate of a selenosulphate bath, can be correlated to larger values of photocurrent. Under short circuit conditions, photocurrent oscillations were observed in the stability curves of fresh specimens, in both composites. They are attributed to the complex solution chemistry of Zn compounds, formed during the sintering step by incomplete oxidation and thermal decomposition of the ZnCl2 flux. The hexagonal character of CdSe, enhanced in the precipitate of the dimethyl selenourea bath, is expected to have an important role in determining the quality of the composite coating and its PEC performance.
type: Article
freetext keyword: Atomic force microscopy; Morphology; Oxidation; Photocurrents; Polycrystalline materials; Precipitation (chemical); Pyrolysis; Screen printing; Semiconducting cadmium compounds; Sintering; Surface topography; Zinc oxide; Cadmium selenide; Semiconductor device manufacture
type: Thing
estado: published
type: Information Content Entity
e iscopus: 2-s2.0-0345476862
most specific type: Article
doi: 10.1088/0268-1242/14/5/003
origen: scopus
page end: 398
related by: authorship 3851
volume: 14
related by: authorship 3854
crisid: 782

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RDF description of Morphology and photoelectrochemical behaviour of CdSe/ZnO composites obtained by the screen printing technique - http://orbis.uaslp.mx/vivo/individual/scopus781
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date: 2026-08-26T10:44:47
publisher: vivo
type: Document

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