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Proceedings Paper

The functional nanostructures based on the bipolymers fragments with unidirect excitations energy transfer for nanophotonics
Author(s): V. M. Yashchuk; V. Yu. Kudrya; I. Ya. Dubey; R. D. Fedorovich; H. Suga; I. O. Savchenko; G. P. Golovach
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Paper Abstract

The results of the design, synthesis and investigations of the compounds (possessing predicted unidirect excitations conductivity) containing several &pgr;-electron systems (including nucleotides - the short DNA-fragments) are reported. The predicted processes of unidirect triplet excitations transfer in all investigated compounds were proved. The nature of electronic excitations traps in the compounds investigated is discussed. For the molecular systems composed from the DNA-fragments spectral investigations show the adenosine-thymidine-sequences are such traps in these compounds as well as the DNA [1]. The energy levels lowering existence from chromophore to chromophore along the molecular system gives the ground to predict not only unidirect neutral excitation transfer but unidirect charge carrier current. Really the "diode" I(U) characteristic for metal-organic system of gold islands connected by &pgr;-electron-containing molecules was observed. This gives the possibility to propose these compounds to be used for nanoelectronic devices design. Computer simulations of electronic excitations passing through the oligomer functional macromolecule taking into account reverse exciton currents show such type macromolecules are perspective for applying in nanophotonics.

Paper Details

Date Published: 8 November 2007
PDF: 14 pages
Proc. SPIE 6796, Photonics North 2007, 67960R (8 November 2007); doi: 10.1117/12.778497
Show Author Affiliations
V. M. Yashchuk, T. Shevchenko National Univ. of Kyiv (Ukraine)
V. Yu. Kudrya, T. Shevchenko National Univ. of Kyiv (Ukraine)
I. Ya. Dubey, Institute of Molecular Biology and Genetics of NASU (Ukraine)
R. D. Fedorovich, Institute of Physics of NASU (Ukraine)
H. Suga, Univ. of Tokyo (Japan)
I. O. Savchenko, T. Shevchenko National Univ. of Kyiv (Ukraine)
G. P. Golovach, T. Shevchenko National Univ. of Kyiv (Ukraine)

Published in SPIE Proceedings Vol. 6796:
Photonics North 2007
John Armitage, Editor(s)

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