Issue 5, 2017

Solution-processable, crystalline material for quantitative singlet fission

Abstract

Amorphous nanoparticles of the singlet fission chromophore 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-Pn) are fully crystallized through co-precipitation with a chemical additive. Time-resolved measurements indicate that singlet fission in the crystalline nanoparticles is quantitative, or lossless, whereas losses are evident in the amorphous nanoparticles as a result of frustrated triplet pair separation. Because triplet pairs form rapidly and separate slowly in amorphous material, mixed-phase samples are unable to compensate for these losses.

Graphical abstract: Solution-processable, crystalline material for quantitative singlet fission

Supplementary files

Article information

Article type
Communication
Submitted
08 may 2017
Accepted
03 avq 2017
First published
10 avq 2017

Mater. Horiz., 2017,4, 915-923

Solution-processable, crystalline material for quantitative singlet fission

R. D. Pensack, C. Grieco, G. E. Purdum, S. M. Mazza, A. J. Tilley, E. E. Ostroumov, D. S. Seferos, Y. Loo, J. B. Asbury, J. E. Anthony and G. D. Scholes, Mater. Horiz., 2017, 4, 915 DOI: 10.1039/C7MH00303J

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