Last November 24th was the first day I got into the BUAP Science Institute (ICUAP). Then, we took photographs in front of the Research Semiconductor Devices building to remember this moment. In the main picture of this post, you can observe Dr. Roman Romano, who is the principal researcher (PI), and me. My postdoctoral project is scheduled from October 2021 to September 2022. Now, I am building thin-film solar cell prototypes made of antimony chalcogenide as the main absorber layer. This project is funded by the Conacyt postdoctoral fellowship to impulse the Mexican PhDs in their early days of an…