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Title: Fluorescence from rubrene single crystals : interplay of singlet fission and energy trapping
Authors: Gurzadyan, Gagik G.
Michel-Beyerle, Maria E.
Ma, Lin
Zhang, Keke
Sun, Handong
Soci, Cesare
Kloc, Christian
Keywords: DRNTU::Science::Physics
Issue Date: 2013
Source: Ma, L., Zhang, K., Kloc, C., Sun, H., Soci, C., Michel-Beyerle, M. E., et al. (2013). Fluorescence from rubrene single crystals : interplay of singlet fission and energy trapping. Physical review B - condensed matter and materials physics, 87(20), 201203-.
Series/Report no.: Physical review B - condensed matter and materials physics
Abstract: We have studied fluorescence in rubrene single crystals by use of fluorescence up-conversion, fluorescence anisotropy, and temperature-dependent time-resolved fluorescence techniques. Thermally activated singlet fission was demonstrated to play an important role in the quenching of two intrinsic fluorescence bands, 565 and 610 nm. At low temperatures, singlet fission is suppressed while another process, namely energy trapping, becomes pronounced. The 650 nm fluorescence originates from the hole trap states located 0.27 eV above the valence band.
DOI: 10.1103/PhysRevB.87.201203
Rights: © 2013 American Physical Society. This paper was published in Physical Review B - Condensed Matter and Materials Physics and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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