Orlova AO, Gromova YA, Savelyeva AV, Maslov VG, Artemyev MV, Prudnikau A, Fedorov AV, Baranov AV. Track membranes with embedded semiconductor nanocrystals: structural and optical examinations.
Nanotechnology 2011;
22:455201. [PMID:
21993251 DOI:
10.1088/0957-4484/22/45/455201]
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Abstract
We studied the optical properties of poly(ethylene terephthalate) ion track membranes of 1.5, 0.5 and 0.05 µm pores impregnated with luminescent semiconductor CdSe/ZnS nanocrystals of different diameters (2.5 and 5 nm). The nanocrystals were embedded from their colloidal solutions in toluene by the immersion of a membrane in a colloidal solution. Localization of quasi-isolated weakly interacting CdSe/ZnS nanocrystals in a loosened layer on the track pore wall surface along with the existence of empty pores was demonstrated. We observed also the spatial separation of nanocrystals of 2.5 and 5 nm in size along the 50 nm pores.
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