Gonçalo Filipe Fernandes Narciso

MEON
Materials for Electronics, Optoelectronics and Nanotechnologies
Fellow Researcher
Open Space (CENIMAT) g.narciso@campus.fct.unl.pt

Description

Master Thesis (January 2019 — October 2019)

Understanding the operation mechanism that imposes a reversible change in the resistance state of the studied devices, using X-ray photoelectron spectroscopy (XPS).

Techniques and instruments utilized during this work:

 

• Deposition of metal and insulator layers through physical vapour deposition techniques ( via-sputtering and electron-beam) in a cleanroom environment in CEMOP (Center of Excellence in Microelectronics, Optoelectronics and Processes);

• Electrical characterization using Agilent 4155C and Keithley 4200SCS semiconductor parameter analysers;

• Surface and in-depth chemistry analysis using X-ray photoelectron spectroscopy (XPS) (Kratos Axis Supra), using CasaXPS software to calculate the atomic ratios and oxidation states ;

• Surface topography analysis using Scanning Electron Microscopy (Hitachi TM 3030Plus Tabletop).