Issue 45, 2019

Photoinduced electron transfer and unusual environmental effects in fullerene–Zn-porphyrin–BODIPY triads

Abstract

Molecular arrays containing donor–acceptor sites and antenna molecules are promising candidates for organic photovoltaic devices. Photoinduced electron transfer (PET) in multi-chromophore systems is controlled by a subtle interplay of donor and acceptor properties and solvent effects. In the present study, we explore how PET of fullerene [C60]–Zn-porphyrin–BODIPY triads can be modulated by passing from non-polar to polar media. To this end we perform a computational study of this complex using the DFT/TDDFT method. We find that the stabilization energy of charge transfer states by a polar medium depends significantly on whether the BODIPY moiety acts as an electron donor or an electron acceptor. To understand this effect of the environment, a detailed analysis of the initial and final states of the ET reactions is performed. We show that additional deactivation channels of the porphyrin excited state may come into play as solvent polarity increases.

Graphical abstract: Photoinduced electron transfer and unusual environmental effects in fullerene–Zn-porphyrin–BODIPY triads

Supplementary files

Article information

Article type
Paper
Submitted
23 Jul 2019
Accepted
27 Oct 2019
First published
28 Oct 2019

Phys. Chem. Chem. Phys., 2019,21, 25098-25107

Photoinduced electron transfer and unusual environmental effects in fullerene–Zn-porphyrin–BODIPY triads

A. J. Stasyuk, O. A. Stasyuk, M. Solà and A. A. Voityuk, Phys. Chem. Chem. Phys., 2019, 21, 25098 DOI: 10.1039/C9CP04104D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements