MBE Growth (IMAGE) University of Warsaw, Faculty of Physics Caption Artistic visualisation: monolayer of 2D material -- molybdenum diselenide (MoSe2) is grown by directing molecular beams of selenium (yellow) and molybdenum (blue) on atomically flat hexagonal boron nitride substrate. Thanks to this substrate, MoSe2 epilayer exhibits excellent optical properties. The image was chosen for the cover of the May 2020 issue of ACS Nano Letters (Source: UW Physics, A. Bogucki, W. Pacuski) Credit Source: UW Physics, A. Bogucki, W. Pacuski Usage Restrictions The image may only be used with the following caption: Artistic visualisation: monolayer of 2D material - molybdenum diselenide (MoSe2) is grown by directing molecular beams of selenium (yellow) and molybdenum (blue) on atomically flat hexagonal boron nitride substrate. Thanks to this substrate, MoSe2 epilayer exhibits excellent optical properties. The image was chosen for the cover of the May 2020 issue of ACS Nano Letters (Source: UW Physics, A. Bogucki, W. Pacuski) License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.