Combining mixed titania morphologies into a complex assembly thin film by iterative block-copolymer-based solgel templating.
Nanotechnology
; 23(14): 145602, 2012 Apr 13.
Article
en En
| MEDLINE
| ID: mdl-22433935
ABSTRACT
Solgel templating combined with iterative spin-coating steps are used to custom-tailor hierarchically structured titania thin films. Using poly(styrene-block-ethylene oxide) P(S-b-PEO) as the structure directing agent, a foam-like structure is combined with nanogranules. Both structural elements are merged into a complex assembly in thin film geometry. The resulting morphology is pictured by SEM and probed with GISAXS. The installed mesoporous titania sandwich structure exhibits holes with a size of 45 nm which makes it promising for applications in photovoltaics or photocatalysis. An optical characterization completes the structural investigation.
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MEDLINE
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Revista:
Nanotechnology
Año:
2012
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Article
País de afiliación:
Alemania