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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
Links doi.org/10.1039/c8cp06368k
Keywords Carbon clusters, thermal radiation, recurrent fluorescence
Subject categories Atom and Molecular Physics and Optics, Chemical physics

Abstract

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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