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Thermodynamics and Kinetics in Model Light Harvesting Dendrimers

Published online by Cambridge University Press:  10 February 2011

Arie Bar-Haim  and
Joseph Klafter
Arie Bar-Haim
Affiliation:
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
Joseph Klafter
Affiliation:
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
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Abstract

Thermodynamic and kinetic properties of model dendrimers are investigated. We show that for ideal dendrimers, with a superimposed energy funnel descending from the periphery to the center, one should be able to control the preferred location of the excitation by monitoring the temperature relative to the energy funnel. This opens the possibility for a controlled drive of photochemical processes in these supermolecules. The mean first passage time (MFPT) of excitations to reach the center of a dendrimer is calculated. A minimum in the MFPT as a function of temperature is predicted.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 543: Symposium W – Dynamics in Small Confining Systems IV , 1998 , 195
Copyright
Copyright © Materials Research Society 1999

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