Morphology-Independent Efficient Singlet Exciton Fission in Perylene Diimide Thin Films

Journal Article (2018)
Author(s)

Y. Aulin (TU Delft - ChemE/Opto-electronic Materials)

K.M. Felter (TU Delft - ChemE/Opto-electronic Materials)

D.D. Gunbas (TU Delft - ChemE/Opto-electronic Materials)

R. Dubey (TU Delft - ChemE/Opto-electronic Materials, TU Delft - OLD ChemE/Organic Materials and Interfaces)

Wolter F. Jager (TU Delft - OLD ChemE/Organic Materials and Interfaces)

F.C. Grozema (TU Delft - ChemE/Opto-electronic Materials)

Research Group
OLD ChemE/Organic Materials and Interfaces
DOI related publication
https://doi.org/10.1002/cplu.201700449
More Info
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Publication Year
2018
Language
English
Research Group
OLD ChemE/Organic Materials and Interfaces
Issue number
4
Volume number
83
Pages (from-to)
230-238

Abstract

Perylene diimides are conjugated chromophores that are of considerable interest owing to their ability to transform a singlet excited state into two triplets by singlet fission. Although singlet fission has previously been reported for certain perylene diimide derivatives, there is some uncertainty about the rates and yield of the process in these materials. In this report, ultrafast transient absorption spectroscopy is used to demonstrate that singlet fission in perylene diimides can occur on a sub-picosecond timescale with quantum yields approaching the theoretical limit of 200 %.

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