Identification of fragments from triethylamine and generation of molecular ions containing carbon and nitrogen

This work identified ion fragments generated by triethylamine within a Freeman-type ion source. H+, H2+, C+, N+, NH2+, CNH+, N2+, C3NH8+, C4NH8+, C5NH12+, and C6NH15+ were all observed. CNH+ ions were selected using a mass filter and applied to a substrate. Ions were applied at an energy of 50 eV with an ion beam current of 0.8 μA/cm2 for a duration of 950 min to generate a 40-nm-thick film. Analyses by Raman, x-ray photoelectron, and Fourier transform infrared spectroscopy techniques indicated that this material comprised carbon nitride.