Generalized Theory of Forster-type Nonradiative Energy Transfer in Nanostructures with Mixed Dimensionality

TL;DR

This paper develops a comprehensive generalized theory for Forster-type nonradiative energy transfer in nanostructures with mixed dimensionality, addressing the limitations of existing models that only consider single donor-acceptor pairs.

Contribution

It introduces a unified theoretical framework that models NRET across all combinations of nanostructure geometries and configurations, filling a significant gap in current understanding.

Findings

Derivation of effective dielectric functions for various geometries

Formulation of distance-dependent transfer rates for mixed dimensionality

Provides a complete theoretical picture for NRET in complex nanostructures

Abstract

Forster-type nonradiative energy transfer (NRET) is widely used, especially utilizing nanostructures in different combinations and configurations. However, the existing well-accepted Forster theory is only for the case of a single particle serving as a donor together with another particle serving as an acceptor. There are also other special cases previously studied; however, there is no complete picture and unified understanding. Therefore, there is a strong need for a complete theory that models Forster-type NRET for the cases of mixed dimensionality including all combinations and configurations. We report a generalized theory for the Forster-type NRET, which includes the derivation of the effective dielectric function due to the donor in different confinement geometries and the derivation of transfer rates distance dependencies due to the acceptor in different confinement geometries, resulting in a complete picture and understanding of the mixed dimensionality.