Optimization of the electron irradiation in the production of MoTe2 nanotubes

In this paper, we report the study of the production of MoTe2 (molybdenum d itelluride) samples after a high dose of electron irradition. A 2 MeV Van d e Graaff accelerator was used to irradiate the sample at the following cond itions: 1.3 MeV voltage, 5 muA current, 25 kGy/min dose rate, and 1000 kGy total dosage. These conditions are maintain fixed while the irradiation dos ages were changed to 50, 100, 200, and 500 Mrad. The optimization of the do sage used for the production of MoTe2 nanotubes was obtained from the analy sis of the samples that were examined in a high-resolution transmission ele ctron microscope. The most efficient production of MoTe2 nanotubes was obta ined at the range between 100 and 200 Mrad. A very typical characteristic w as obtained for rotated structures with angles of 4, 5, 7, 8, and 12 degree s observed in the diffraction pattern for MoTe2.