| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Marques, Ana
Instituto de Novas Tecnologias
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Influence of CO2 laser beam modelling on electronic and electrochemical properties of paper-based laser-induced graphene for disposable pH electrochemical sensorscitations
- 2022Passive direct methanol fuel cells acting as fully autonomous electrochemical biosensorscitations
- 2022Water Peel-Off Transfer of Electronically Enhanced, Paper-Based Laser-Induced Graphene for Wearable Electronicscitations
- 2021Production of medium-chain-length polyhydroxyalkanoates by Pseudomonascitations
- 2021Laser-Induced Graphene on Paper toward Efficient Fabrication of Flexible, Planar Electrodes for Electrochemical Sensingcitations
- 2021Tuning the Electrical Properties of Cellulose Nanocrystals through Laser-Induced Graphitization for UV Photodetectorscitations
- 2020Silver nanocomposites based on the bacterial fucose-rich polysaccharide secreted by Enterobacter A47 for wound dressing applications: Synthesis, characterization and in vitro bioactivitycitations
- 2019Demonstration of the adhesive properties of the medium-chain-length polyhydroxyalkanoate produced by Pseudomonas chlororaphis subsp. aurantiaca from glycerolcitations
- 2018Green Nanotechnology from Waste Carbon-Polyaniline Compositecitations
- 2016Smart optically active VO2 nanostructured layers applied in roof-type ceramic tiles for energy efficiencycitations
- 20168-hydroxy-2′-deoxyguanosine (8-OHdG) biomarker detection down to picoMolar level on a plastic antibody filmcitations
Places of action
| Organizations | Location | People |
|---|
article
Tuning the Electrical Properties of Cellulose Nanocrystals through Laser-Induced Graphitization for UV Photodetectors
Abstract
<p>Laser-induced graphene from abundant and renewable biobased carbon sources may open the way for sustainable and low-cost electronic device generation. Yet little progress has been made on nanocellulose-based materials to produce laser-induced graphene (LIG). In this work, we demonstrate the versatility of the laser-assisted technique to promote graphitization of pineapple cellulose nanocrystals (CNCs), aimed at UV photodetectors. CNCs tablets are used as carbon-based precursors to photonically synthesize LIG nanopowders, which are used as functional materials in the formulation of printable cellulose composite electroconductive inks, using sodium carboxymethyl cellulose (CMC) as a binder. The developed CMC/LIG inks are used to pattern LIG electrodes (LIGE) on tracing paper, using hand-drawing techniques. The impact of the laser parameters in the conversion of the CNCs tablets into graphene nanopowder, as well as the influence of the CMC/LIG ink composition allied with an additional laser treatment on the chemical, morphological, and electrical properties of the hand-drawn cellulose composite films is systematically addressed. The LIG nanopowder composite films reveal less sheet resistance after laser treatment. The optimal conditions were found for 0.6 w/v% of LIG nanopowder in CMC solution at +1.1 mm defocus, 8.2 cm/s tip laser speed and 2.4 W CO2 laser power. As a proof-of-concept, fully printed zinc oxide UV photodetectors with the optimized LIGE are demonstrated, showing a superior performance in comparison to other UV sensors described in the literature. </p>