CC BY-NC-ND 4.0 · Organic Materials 2021; 3(03): 455-468
DOI: 10.1055/a-1578-0960
Focus Issue: Supramolecular Optoelectronic Materials
Short Review

Excimers in Multichromophoric Assemblies: Boon or Bane?

a   Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur 741246, India.
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Abstract

Exciton dynamics in organic semiconductors is a subject of great significance from the standpoint of light emission, as well as light harvesting. As transient excited state species, excimers are expected to play a significant role in the dynamics and the fate of the excited state. Till recently, the discourse on excimers in organic systems revolved around their role in aggregation-induced fluorescence quenching, or utilizing their characteristic red-shifted emission to report local interactions. But in the last decade, research in the area of organic multichromophoric systems has brought the spotlight back on this fascinating species. This review focuses on recent developments that highlight the importance of excimers in various processes involving multichromophoric systems, such as circularly polarized emission, exciton migration, and singlet fission. The review also attempts to address the question of whether excimers are useful or detrimental to various photophysical and photochemical processes of importance.

Table of content:

Introduction

Excimers in Multichromophoric Assemblies

Excimer Luminescence

Excimers in Light Harvesting

Conclusions and Outlook



Publication History

Received: 23 June 2021

Accepted: 03 August 2021

Accepted Manuscript online:
03 August 2021

Article published online:
30 September 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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