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Issue 5, 2017
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Solution-processable, crystalline material for quantitative singlet fission

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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

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Publication details

The article was received on 08 May 2017, accepted on 03 Aug 2017 and first published on 10 Aug 2017


Article type: Communication
DOI: 10.1039/C7MH00303J
Citation: Mater. Horiz., 2017,4, 915-923
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    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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