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

F-Q Chen; N Kono; R Suzuki; T Furukawa; H Tanuma; P Ferrari; T Azuma; J Matsumoto; H Shiromaru; V Zhaunerchyk; K Hansen

doi:10.1039/c8cp06368k

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

Phys Chem Chem Phys. 2019 Jan 21;21(3):1587-1596. doi: 10.1039/c8cp06368k. Epub 2019 Jan 8.

Authors

F-Q Chen¹, N Kono, R Suzuki, T Furukawa, H Tanuma, P Ferrari, T Azuma, J Matsumoto, H Shiromaru, V Zhaunerchyk, K Hansen

Affiliation

¹ School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China.

PMID: 30620033
DOI: 10.1039/c8cp06368k

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.