Luminescence studies of fresh water diatom frustules |
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| Authors: | Nirmal Mazumder Ankur Gogoi Ranjan Dutta Kalita Gazi A Ahmed Alak K Buragohain and Amarjyoti Choudhury |
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| Institution: | (1) Ecologie des Syst?mes Aquatiques, Universit? Libre de Bruxelles, Boulevard du Triomphe, CP-221, 1050 Bruxelles, Belgium |
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| Abstract: | Siliceous frustules were extracted from fresh water diatoms by treating with concentrated HCl. The diatom frustules consist
of nano-porous silica structures that exhibit unique optoelectronic and photonic properties. Photoluminescence (PL) properties
of diatom frustules at various excitation wavelengths were done. A visible PL band centered at 440 nm was observed when excited
at 300 nm, 370 nm and 380 nm wavelengths. The observed PL activity of the diatom frustules has the potential for use in optoelectronic
and photonic devices. |
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