Paul Grey

Advanced Functional Materials for Micro and Nanotechnologies
Research scholarship
Open Space (CEMOP) 13754
6 11621


Paul Grey received his master degree in micro- and nanotechnology in September 2014 with an outstanding work on “Development of WO3 Electrochromic Thin-Film Transistors (ECTFTs) on Flexible Substrate”. He proceeded to work as a scholarship researcher at CENIMAT/I3N on the project A3Ple with the fabrication of printed electrochromic displays on paper substrates for applications such as packaging. The participation with the A3Ple project in “OE-A Competition for Multifunctional Demonstrators based on Organic and Printed Electronics” by submitting the demonstrator “Gas Detecting Safety Label A5/A0” was internationally awarded with “Best Publicly Funded Project Demonstrator”. At the moment Paul is entering a new field of research based on chiral nematic phase formation of nanocrystalline cellulose and its application in photonics. Main scientific interests: - Electrolyte Gated Transistors - Cellulose-based nanocomposites - Oxide nanoparticles (WO3, ZnO); - Electrochromic materials - Screen-printing - Paper-based electronic devices - Chiral Nnanocrystalline Cellulose

Main publications

•    D. Gaspar, S.N. Fernandes, Susete; A. Grüninger de Oliveira, J. Fernandes, P. Grey, R. Pontes, L. Pereira, R. Martins, Rodrigo; M.H. Godinho, E. Fortunato, “Nanocrystalline Cellulose Applied Simultaneously as Gate Dielectric and Substrate on Flexible Field Effect Transistors”, Nanotechnology, 25, Article number 094008, 2014. DOI:10.1088/0957-4484/25/9/094008.
•    P. Barquinha, S. Pereira, L. Pereira, P. Wojcik, P. Grey, R. Martins and E. Fortunato, “Flexible and Transparent WO3 Transistor with Electrical and Optical Modulation”, Advanced Electronic Materials, 4, DOI: 10.1002/aelm.201500030.