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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 2/2018

20.09.2018 | Original Paper: Functional coatings, thin films and membranes (including deposition techniques)

Nano gold-coated surface patterned mesoporous titanium tin oxide sol–gel thin film: fabrication, optical and photoelectrochemical properties

verfasst von: Hasmat Khan, Malobi Seth, Atanu Naskar, Sunirmal Jana

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 2/2018

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Abstract

Nano noble metal coating on surface patterned mesoporous semiconductor thin film can play an important role in enhancing visible light harvesting efficiency (LHE) towards improvement in photoelectrochemical (PEC) activity of the material. In this work, one-dimensional (1D) and two-dimensional (2D) mesoscale surface patterns have been created on sol–gel-based titanium tin oxide (TSO) nanostructured thin film on pure silica/indium tin oxide-coated glass by soft lithography. The TSO film matrix is observed to be mesoporous and semicrystalline as evidenced from the structural characterization by transmission electron microscopy and measurement of atmospheric ellipso-porosimetry, respectively. The 2D patterned film exhibits maximum LHE value in visible wavelength region. Further film surface modification has been carried out by depositing nano Au coating onto the bare patterned TSO films by a low temperature solution technique. Under visible light, a significant improvement in PEC activity is found and the gold-coated patterned 2D film shows higher visible LHE as well as >2.7 times higher photocurrent density than bare 2D film. This facile fabrication strategy can create an avenue toward improvement in LHE vis-à-vis the PEC activity of mesoporous mixed metal oxide semiconductor thin film.
Vorheriger Artikel Surface modification and characterization of polyester fabric by coating with low temperature synthesized ZnO nanorods
Nächster Artikel Effect of Ce doping on the structure and optical properties of HfO2 films by the Pechini-type sol–gel method

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Metadaten
Titel
Nano gold-coated surface patterned mesoporous titanium tin oxide sol–gel thin film: fabrication, optical and photoelectrochemical properties
verfasst von
Hasmat Khan
Malobi Seth
Atanu Naskar
Sunirmal Jana
Publikationsdatum
20.09.2018
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 2/2018
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-018-4818-4

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