Nano-structured silica on diatoms and its optical properties
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10 138 Ft
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Product details:
- Publisher LAP Lambert Academic Publishing
- Date of Publication 1 January 2015
- ISBN 9783659713712
- Binding Paperback
- No. of pages52 pages
- Size 220x150x3 mm
- Weight 86 g
- Language English 0
Categories
Long description:
Siliceous frustules were extracted from a representative fresh water diatom species (Cyclotella sp.) by treating with aqueous hydrochloric (HCl) acid. The structural characterizations of cleaned frustules were examined by scanning electron microscope (SEM). The microscopy images showed that the diatoms have a regular circular shape and are of almost equal size (average length is 9 m and average width is 3 m).It was observed that the frustules were composed mostly of silica (~87 at %), and metal oxides (~11.5 at %) as found from FT-IR and EDX measurements. Optical emission showed clear bands at 440 and 375 nm which arise due to silica microstructures of size 200 nm. Photonics device can be manufactured with this nature made nanostructure.
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