Issue 39, 2019

Charge separation, charge recombination, long-lived charge transfer state formation and intersystem crossing in organic electron donor/acceptor dyads

Abstract

Photo-induced charge separation (CS) and charge recombination (CR) are crucial for molecular systems used in artificial photosynthesis, photovoltaics, and photocatalysis, and these processes are also important for fundamental photochemical studies. This review article focuses on the recent developments in CS/CR, long-lived charge transfer (CT) state formation, and CR-induced intersystem crossing (ISC) in organic molecular systems, ranging from discussions on the molecular structural features dictating the kinetics and thermodynamics of CS/CR and electron spin transport, as well as the spectroscopies used for the characterization of the CS/CR and the CR-induced ISC. Emphases are put on the molecular design rationales, from the point of view of organic chemists, to achieve fast and efficient CS but slow CR, as such to access the long-lived CT state. The roles of the electron spin in controlling the CS, CR and formation of the long-lived CT state are discussed with exemplars. Time-resolved electron paramagnetic resonance (TREPR) spectroscopy for characterization of the charge and electron spin transport in the CS, CR and ISC processes is introduced.

Graphical abstract: Charge separation, charge recombination, long-lived charge transfer state formation and intersystem crossing in organic electron donor/acceptor dyads

Article information

Article type
Review Article
Submitted
05 авг. 2019
Accepted
08 септ. 2019
First published
11 септ. 2019

J. Mater. Chem. C, 2019,7, 12048-12074

Charge separation, charge recombination, long-lived charge transfer state formation and intersystem crossing in organic electron donor/acceptor dyads

Y. Hou, X. Zhang, K. Chen, D. Liu, Z. Wang, Q. Liu, J. Zhao and A. Barbon, J. Mater. Chem. C, 2019, 7, 12048 DOI: 10.1039/C9TC04285G

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