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Radiative cooling of cationic carbon clusters, CN+, N=8,10,13-16

Journal article
Authors Fuqiang Chen
Naoko Kono
R. Suzuki
Takeshi Furukawa
H. Tanuma
Piero Ferrari
Toshiuki Azuma
Haruo Shiromaru
Vitali Zhaunerchyk
Klavs Hansen
Published in Physical Chemistry Chemical Physics - PCCP
Volume 21
Pages 1587-1596
ISSN 1463-9076
Publication year 2019
Published at Department of Physics (GU)
Pages 1587-1596
Language en
Keywords Carbon clusters, thermal radiation, recurrent fluorescence
Subject categories Atom and Molecular Physics and Optics, Chemical physics


The radiative cooling of highly excited carbon cluster cations of sizes N = 8, 10, 13–16 has been studied in an electrostatic storage ring. The cooling rate constants vary with cluster size from a maximum at N = 8 of 2.6 × 104 s−1 and a minimum at N = 13 of 4.4 × 103 s−1. The high rates indicate that photon emission takes place from electronically excited ions, providing a strong stabilizing cooling of the molecules.

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