Influence of stochastic processes on kinetics of two-electron transfer in dimer nanocluster embedded in organic matrix

O. V. Yaltychenko; E. Yu. Kanarovskii

doi:10.1117/12.968593

1 November 2012 Influence of stochastic processes on kinetics of two-electron transfer in dimer nanocluster embedded in organic matrix

O. V. Yaltychenko, E. Yu. Kanarovskii

Author Affiliations +

Proceedings Volume 8411, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VI; 84112U (2012) https://doi.org/10.1117/12.968593
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2012, 2012, Constanta, Romania

Abstract

In the framework of the stochastic approach to the description of the interaction between the quantum dimer nanocluster with two electrons and dissipative environment, such as a weak structured organic matrix, the electron transfer kinetics is theoretically investigated. The minimal theoretical model formulated here involves the applying of Redfield’s theory for the reduced density matrix and the using of Haken-Strobl approximation. The dimer nanocluster is considered in the model “two centers – two electrons”, which is described with using of Hubbard’s Hamiltonian, so that the electron correlation is taken into account. It was found that the difference in the electron populations on the dimer nanocluster centers has an oscillatory time dependence with a beats, which is damping due to the influence of a weak structured matrix as a thermostat. This manifests itself as a change in the nanodimer dipole moment, i.e. during of the relaxation time determined by a dissipative environment holds the switching of nanodimer between the states with the opposite directions of its dipole moment. Eventually, the dimer nanocluster relaxes from an initial state with two electrons on one center to the final state with a uniform distribution of electrons on the centers. It is shown how the switching is modified for the different values of the nanodimer parameters and dissipation parameter. This switching regime in the nanosystem studied here is interesting for various device applications due to the ability to control the state of such nanosystem by action of the external electric and magnetic fields.

Citation Download Citation

O. V. Yaltychenko and E. Yu. Kanarovskii "Influence of stochastic processes on kinetics of two-electron transfer in dimer nanocluster embedded in organic matrix", Proc. SPIE 8411, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VI, 84112U (1 November 2012); https://doi.org/10.1117/12.968593

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Electrons

Stochastic processes

Switching

Chemical elements

Magnetism

Systems modeling

Control systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years