Daniela Pereira – AIM Fellow 2018

foto_Daniela Pereira 2018

Daniela Pereira has undergraduated degrees (bachelor and master) in Physics Engineering from Faculdade de Ciências e Tecnologia of Universidade Nova de Lisboa.

Her PD-FCT AIM project entitled Defect engineered 2D oxide field effect transistors for efficient biosensing” and it will take place at Campus Tecnológico e Nuclear in Bobadela and INESC-MN. The thesis is supervised by Katharina Lorenz (INESC-MN, DECN-IST) and co-supervised by Susana Freitas (INESC-MN, DF-IST) and Paulo Freitas (INL). Her doctoral program started on September 3rd 2018.

PhD Project Goals

Her PhD project aims at establish a defect engineering platform to adapt the properties of the two dimensional (2D) wide bandgap semiconductors MoO3 and Ga2O3 for efficient biosensing applications. For this, several intermediate milestones need to be achieved. Firstly, defect engineering will be realized by chemical reduction, irradiation induced strain, ion bombardment as well as doping by ion implantation. Then, the engineered materials will be processed into field effect transistor (FET) structures which will be fully electrically characterized. And finally, the most promising FETs, either based on single flakes or nanostructured quase-2D thin films, will be functionalized and tested as biosensors.

Research Experience

Her research experience is in the field of nanophysics and semiconductor materials, focusing on the tuning of electrical properties of MoO3 lamellar crystals by annealing treatments and ion implantation. Electrical measurements and X-ray diffraction are the characterization techniques in which she has acquired knowledge and experience.  Her research experience was obtained during her participation in the FCT projects, which gave rise to two published papers and some oral/poster communications in conferences (more details are shown below).

Papers in Peer-Reviewed Journals

  • D.R. Pereira, M. Peres, L.C. Alves, J.G. Correia, C. Díaz-Guerra, A.G. Silva, E. Alves, K.Lorenz, Electrical characterization of molybdenum oxide lamellar crystals irradiated with UV light and proton beams, Surface and Coatings Technology, 355 (2018) 50-54 , https://doi.org/10.1016/j.surfcoat.2018.01.034.
  • D. R. Pereira, C. Díaz-Guerra, M. Peres, S. Magalhães, J. G. Correia, J. G. Marques, A. G. Silva, E. Alves, K. Lorenz, “Engineering strain and conductivity of MoO3 by ion implantation”, Acta Materialia 169 (2019) 15-27, https://doi.org/10.1016/j.actamat.2019.02.029.

Participation in projects

  • Member of team in project “PORTUGAL AT ISOLDE: Materials and Nuclear Physics Research with Radioactive Isotopes and Techniques” (CERN/FIS-PAR/0005/2017).
  • Member of team in project “Material´s Characterization with Nuclear Radioactive Techniques – synergy and complementarity applied to training and development.” (CERN/FIS-NUC/0004/2015).

Oral Communication

  • XV Congreso Nacional de Materiales /I Iberian Meeting on Materials Science, Salamanca, Spain, 04-06 July 2018: “Strain and electrical conductivity induced by ion implantation in a-MoO3 lamellar crystals, D. R. Pereira, C. Díaz-Guerra, M. Peres, S. Magalhães, J. G. Correia, J. G. Marques, A. G. Silva, E. Alves, K. Lorenz

Poster Communication

  • 20th International Conference on Surface Modification of Materials by Ion Beams, Lisbon, Portugal, 09-14 July 2017: “Electrical and Structural Characterization of Molybdenum Oxide Lamellar Crystals Implanted with Oxygen”, Daniela Pereira, M. Peres, L. C. Alves, J. G. Correia, C. Díaz-Guerra, A. G. Silva, E. Alves, K. Lorenz.
  • 20.ª Conferência Nacional de Física e 26.º Encontro Ibérico para o Ensino da Física, Universidade do Minho, Portugal, 08-10 September 2016: “Modelling and Simulation of growth of metal nanoparticles”, Daniela Pereira, Dylan Marques and Ana G.-Silva.