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Issue 39, 2014
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The key role of geminate electron–hole pair recombination in the delayed fluorescence in rhodamine 6G and ATTO-532

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Abstract

In this paper we investigate the delayed fluorescence (DF) phenomena in the widely used laser dye, rhodamine 6G, and its derivative ATTO-532 as a function of excitation energy using highly sensitive time-resolved gated nanosecond spectroscopy. Excitation with UV laser radiation results in delayed emission, which arises from singlet states created from geminate pair recombination, not triplet annihilation. For the first time the origins and photo-physical properties of delayed fluorescence in these highly fluorescent molecules are elucidated.

Graphical abstract: The key role of geminate electron–hole pair recombination in the delayed fluorescence in rhodamine 6G and ATTO-532

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Publication details

The article was received on 17 Apr 2014, accepted on 19 Aug 2014 and first published on 20 Aug 2014


Article type: Paper
DOI: 10.1039/C4CP01675K
Author version available: Download Author version (PDF)
Citation: Phys. Chem. Chem. Phys., 2014,16, 21543-21549
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    The key role of geminate electron–hole pair recombination in the delayed fluorescence in rhodamine 6G and ATTO-532

    M. Aydemir, V. Jankus, F. B. Dias and A. Monkman, Phys. Chem. Chem. Phys., 2014, 16, 21543
    DOI: 10.1039/C4CP01675K

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