Singlet fission in self-assembled PDI nanocrystals

Christoph Schierl, Angelica Niazov-Elkan, Linda J. W. Shimon, Yishay Feldman, Boris Rybtchinski, Dirk M. Guldi

Research output: Contribution to journalArticlepeer-review

Abstract

Upon photoexcitation, self-assembled PDI nanocrystals (S1S0) in the form of rods of 70 nm width and 1 mu m length are subject to a symmetry breaking charge separation (SBCS) as the first step in the singlet fission (SF) sequence. Hereby, the correlated pair of triplet excited states (1)(T1T1) is formed with a quantum yield of 122%. Decoherence and triplet diffusion within the nanocrystals affords a long-lived, uncorrelated pair of triplet excited states (T-1 + T-1) with a quantum yield of 24%.

Original languageEnglish
Pages (from-to)20147-20154
Number of pages8
JournalNanoscale
Volume10
Issue number43
DOIs
StatePublished - 21 Nov 2018

All Science Journal Classification (ASJC) codes

  • General Materials Science

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