8 papers
Formation of Ag and Au Plasmonic Nanoparticles by Ion Implantation in GaO thin films
Inês Freitas, Ana Sofia Sousa, Duarte Magalhães Esteves +6
Gallium oxide (GaO) is a wide-bandgap semiconductor with exceptional electrical and optical properties, making it a promising material for optoelectronic and sensing applic…
Au and Ag nanoparticles produced by ion implantation in single-crystalline -GaO
Duarte Magalhães Esteves, Ana Sofia Sousa, Inês Freitas +5
This work reports the successful formation of Ag and Au nanoparticles in -GaO single-crystals by ion implantation and annealing at 550 °C. X-ray diffraction measuremen…
Anisotropic implantation damage build-up and crystal recovery in -GaO
Duarte Magalhães Esteves, Sérgio Magalhães, Ãngelo Rafael Granadeiro da Costa +2
The present work aims at investigating the defect accumulation and recovery dynamics in the inherently anisotropic -GaO lattice. A systematic Rutherford Backscattering…
Understanding the anisotropic response of -GaO to ion implantation
Duarte Magalhães Esteves, Ru He, Sérgio Magalhães +8
While -GaO is considered a promising wide bandgap semiconductor, the impact of ion-induced defect formation and anisotropic elasticity remains poorly understood. Here,…
Study on the Effect of Annealing on GaO Thin Films Deposited on Silicon by RF Sputtering
Ana Sofia Sousa, Duarte M. Esteves, Tiago T. Robalo +3
Gallium oxide is an ultra-wide bandgap semiconductor with excellent opto-electronic properties, making it a highly promising material for a wide range of applications and devices.…
UV photodetectors and field-effect transistors based on -GaO nanomembranes produced by ion-beam-assisted exfoliation
Miguel Cardoso Pedro, Duarte Magalhães Esteves, Daniela Rodrigues Pereira +4
-GaO nanomembranes, obtained by ion-beam-assisted exfoliation, are used in the fabrication of simple metal-semiconductor-metal (MSM) structures, that are tested as…