Subventions et des contributions :

Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019).

NanoXplore is a Montreal-based advanced materials company, the largest Canadian producer of graphene andx000D
one of the largest graphene producers in the world. NanoXplore is planning to expand the use of their materialx000D
for Electromagnetic Interference (EMI) applications. NanoXplore is targeting applications in the frequencyx000D
range of 8 GHz and higher. One of the major problems that face material developer for Radio Frequency (RF)x000D
application is the proper electromagnetic characterization of the material. Most companies base their test onx000D
DC characterization due to lack of expertise and facilities and base their material development on trial andx000D
error. For materials intended for high frequency application, DC tests provide parameters far from the actualx000D
parameters at high frequencies. Trial and error concept is costly and time consuming that is not appropriate forx000D
today's high market competitiveness. This proposal aimed at providing proper electromagnetic characteristicsx000D
for the newly developed material by nanoXplore for shielding in automobiles, and aerospace application.x000D
Through the electromagnetic measurements of several graphene compositions, we should predict the shieldingx000D
effectiveness of each sample and suggest the proper graphene composition ratio that achieves the requiredx000D
shielding effect.x000D
Using Concordia's facilities in the microwave laboratory, the material reflection and transmission coefficientsx000D
referred to as S-parameters are measured using waveguides (high frequency transmission guide) of severalx000D
frequency bands. These measurements are used in an inverse process to predict the electromagnetic propertiesx000D
of the material, which are used to predict the EMI shielding effectiveness of the material. Several measurementx000D
setups will be used to determine the anisotropy of the material as well. The results of this project will helpx000D
nanoXplore to have a new product and maintain its leadership as a Canadian company all over the Globe.