We present a brief review of the results of spectroscopic studies of the interaction of a beam of low-energy monokinetic tunable-energy electrons with organic luminescent molecules. Data are presented on elastic scattering, the excitation of vibrational and electronic transitions, luminescence properties, and the formation of positive and negative ions for a number of molecules. It is shown that the passage of electrons through the gaseous and thin-film phases of organic samples is close in nature. For all processes, except the excitation of triplet transitions and the formation of negative ions, the dipole interaction prevails, even in the near-threshold region. The results of the conducted research will be useful for understanding the conversion of electron energy by organic molecules in electronics, where the direct study of elementary processes is very difficult, as well as in biology and plasma chemistry.

Keywords: organic molecules, excitation, electrons, luminescence, ionization, energy loss spectra PACS: 33.15.Ta, 33.50.Dq, 34.50.Bw, 34.50.Gb (all) DOI: 10.3367/UFNe.2022.05.039197 URL: https://ufn.ru/en/articles/2023/2/c/ 001097218300003 2-s2.0-85182911987 2023PhyU...66..173K Citation: Kukhta A V, Kazakov S M "Spectroscopy of the interaction of a low-energy electron beam with organic luminescent molecules" Phys. Usp. 66 173–181 (2023) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 28th, March 2022, revised: 19th, April 2022, accepted: 28th, May 2022 Оригинал: Кухто А В, Казаков С М «Спектроскопия взаимодействия пучка низкоэнергетических электронов с органическими люминесцирующими молекулами» УФН 193 182–191 (2023); DOI: 10.3367/UFNr.2022.05.039197