Post on 03-Aug-2020
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Methods and techniques
Results
compatibility with flexible substrates ->
low cost ->
high performance ->
power efficiency ->
eco-friendly ->
widely available solutions ->
Electrochromic performance of printed tungsten oxide (WO3) films:
CEN
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Printable organic and inorganic materials for flexible electrochromic devices
Publications
Pawel Jerzy WojcikkPost-Doc
Objectives
low temperature processing and environmental stability
fully printed devices in a roll-to-roll process
all-solid-state structure
reflection mode and optical memory
water based or solvent free inks/pastes
easily accessible components
The goal was to develop materials and processes alternative to existing aiming at:
Change in optical density
coloration time bleaching time
Switching dynamics
colored bleached
Fully screen-printed all-solid-state,
flexible 8x8 EC passive matrix
Paper EC display integrated with printed backplane
Inkjet/screen printed, all-solid-state, beddable
EC paper display
colored bleached
Inkjet printed, all-solid-state, beddable,
large area EC window
Inkjet printed EC display based on liquid electrolyte
1. Wojcik, P.J., Cruz, A.S., Santos, L., Pereira, L., Martins, R., Fortunato, E.: Microstructure control of
dual-phase inkjet-printed a-WO3/TiO2/WOX films for high-performance electrochromic applications.
Journal of Materials Chemistry. 22, 13268 (2012).
2. Wojcik, P.J., Pereira, L., Martins, R., Fortunato, E.: Statistical mixture design and multivariate analysis
of inkjet printed a-WO3/TiO2/WOX electrochromic films. ACS Comb. Sci. 16 (1) 5-16 (2014).
3. Wojcik, P.J., Pereira, L., Martins, R., Fortunato, E.: Metal Oxide Nanoparticle Engineering for Printed
Electrochemical Applications. In: Nano-Electrochemistry: Electrochemical Synthesis Methods,
Properties and Characterization Techniques. Handbook of Springer – under edition.
Supervisors: Prof. Elvira FortunatoProf. Rodrigo Martins