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

Yaroslav V. Aulin, Kevin M. Felter, D. Deniz Günbas, Rajeev K. Dubey, Wolter F. Jager, Ferdinand C. Grozema*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

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 %.

Original languageEnglish
Pages (from-to)230-238
Number of pages9
JournalChemPlusChem
Volume83
Issue number4
DOIs
Publication statusPublished - 1 Apr 2018

Keywords

  • molecular packing
  • perylene diimide
  • photophysics
  • singlet fission
  • time-resolved spectroscopy

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