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 journalArticle

2 Citations (Scopus)

Abstract

Upon photoexcitation, self-assembled PDI nanocrystals (S1S0) in the form of rods of 70 nm width and 1 μm 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 (T1 + T1) with a quantum yield of 24%.

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

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Quantum yield
Excited states
Nanocrystals
Photoexcitation

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Schierl, C., Niazov-Elkan, A., Shimon, L. J. W., Feldman, Y., Rybtchinski, B., & Guldi, D. M. (2018). Singlet fission in self-assembled PDI nanocrystals. Nanoscale, 10(43), 20147-20154. https://doi.org/10.1039/c8nr04155e

Singlet fission in self-assembled PDI nanocrystals. / Schierl, Christoph; Niazov-Elkan, Angelica; Shimon, Linda J.W.; Feldman, Yishay; Rybtchinski, Boris; Guldi, Dirk M.

In: Nanoscale, Vol. 10, No. 43, 21.11.2018, p. 20147-20154.

Research output: Contribution to journalArticle

Schierl, C, Niazov-Elkan, A, Shimon, LJW, Feldman, Y, Rybtchinski, B & Guldi, DM 2018, 'Singlet fission in self-assembled PDI nanocrystals', Nanoscale, vol. 10, no. 43, pp. 20147-20154. https://doi.org/10.1039/c8nr04155e
Schierl C, Niazov-Elkan A, Shimon LJW, Feldman Y, Rybtchinski B, Guldi DM. Singlet fission in self-assembled PDI nanocrystals. Nanoscale. 2018 Nov 21;10(43):20147-20154. https://doi.org/10.1039/c8nr04155e
Schierl, Christoph ; Niazov-Elkan, Angelica ; Shimon, Linda J.W. ; Feldman, Yishay ; Rybtchinski, Boris ; Guldi, Dirk M. / Singlet fission in self-assembled PDI nanocrystals. In: Nanoscale. 2018 ; Vol. 10, No. 43. pp. 20147-20154.
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