PRODUCTION AND CHARACTERIZATION OF MoSe₂ NANOTUBES BY ELECTRON IRRADIATION

ABSTRACT

In this work, we report the production of MoSe₂ (molybdenum diselenide) nanotubes formed by irradiating the samples with high doses of electron irradiation. The irradiation was performed on a 2 MeV Van de Graff accelerator at the following conditions: voltage 1.3 MeV, current 5 µA current, dose rate 25 Kgy/min, and total dosage 1 Mgy. We observed well-defined nanotubes of several nm long and few nm wide, which suppose to be hollow and capped at one end. As the level of irradiation was increased to 1 Mgy, elongated onion-like structures were observed.

Keywords:

• Electron irradiation
• Nanotubes
• Onion-like structures

ACKNOWLEDGMENTS

We would like to acknowledge F. Ruiz, G. Vilchis, and E. Aparicio for technical support. D. H. Galván acknowledges CONACYT under Grant No. 3027-PE and DGAPA-UNAM under project IN-104497.