Funct. Mater. 2013; 20 (3): 407-410

http://dx.doi.org/10.15407/fm20.03.407

Cyanine dye excimer formation in nanoporou SiOmatrices

 B.A. Gnap, I.I. Bespalova, S.L. Yefimova, A.V. Sorokin

Institute for Scintillation Materials, STC "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Lenin ave., 61001 Kharkiv, Ukraine

Abstract: 

Novel red-shifted band has been observed in luminescence spectra of a cyanine dye embedded into nanoporous SiO2 matrix. 

That band is concentration dependent and disappears at cooling to low temperature. It has been associated with the dye excimer formation 

due to strong interaction with the pores surface.

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