Nikolaos Diakos is a MSc candidate at the “Nanotechnology for Energy Applications” of the Hellenic Mediterranean University (Heraklion, Crete, Greece). He received his Bachelor of Science (BSc) in Materials Science and Technology, Department of Materials Science and Technology, UoC, Greece in 2017. In 2016, he joined Ultrafast Laser Micro- and Nano- Processing Laboratory of IESL-FORTH, for his Bachelor Thesis entitled “Consecration of periodic structures on Titanium Alley surfaces using an ultra-fast femtosecond laser for biological applicants”. In 2020, he joined the Ultrafast Laser Micro- and Nano- Processing Laboratory of IESL-FORTH group as a master student and his current research interests concern the development of laser based methods for the fabrication of Graphene Related Materials for application in different layers of Perovskite Solar Cells to enhance the efficiency and long term stability of the devices.