The role of charged centers in radiation-induced phenomena occurring in solid nitrogen irradiated with an electron beam was studied. The experiments were performed employing luminescence method and activation spectroscopy techniques - spectrally resolved thermally stimulated luminescence TSL and thermally stimulated exoelectron emission. To discriminate radiation-induced processes in the bulk and at the surface the samples were probed in depth by varying electron energy. Desorption of excited N2* (C3{\Pi}u) molecule was detected for the first time. The mechanism of this phenomenon based on recombination of electron with intrinsic charged center N4+ was proposed. The key role of N3+ center dissociative recombination in generation of N radicals is suggested.
@article{arxiv.1410.2186,
title = {Desorption of excited molecules from solid nitrogen},
author = {Elena Savchenko and Ivan Khyzhniy and Sergey Uyutnov and Andrey Barabashov and Galina Gumenchuk and Alexey Ponomaryov and Vladimir Bondybey},
journal= {arXiv preprint arXiv:1410.2186},
year = {2014}
}