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Test & measurement


to the work of the Graphene Flagship Standardisation Committee. “This will undoubtedly accelerate the uptake of this new technology, as it will outline how analysis and comparison of graphene samples can be done in a reproducible way,” explains Peter Jepsen from Graphene Flagship Par tner DTU, who co- authors the study. “Teraher tz spectroscopy is yet another step to increase the trust in graphene-enabled products,” he concludes. Amaia Zurutuza, scientific director at Graphene Flagship partner Graphenea, says: “At Graphenea, we are convinced that terahertz imaging can enable the development of quality control techniques capable of matching manufacturing throughput requirements and providing relevant graphene quality information, which is essential in our path towards the successful industrialisation of graphene.” Thurid Gspann, the chair of the Graphene Flagship Standardisation Committee, says: “This terahertz [spectroscopy] technique is expected to be widely adopted by industry. It does not require any particular sample preparation and is a mapping technique that allows one to analyse large areas in a time efficient way.”


Marco Romagnoli, Graphene Flagship


division leader for Electronics and Photonics Integration, adds: “The terahertz spectroscopy tool for wafer-scale application is a state-of-the- art, high TRL system to characterise multilayer stacks on wafers that contain CVD graphene. It works in a short time and with good accuracy, and provides the main parameters of interest, such as carrier mobility, conductivity, scattering time and carrier density. This high-value technical achievement is also an example of the advantage of being part of a large collaborative project like the Graphene Flagship.”


INS-APR20-LABFACILITY.qxp_Layout 1 17/04/2020 15:23 Page 1


Andrea C. Ferrari, Science and Technology


Officer of the Graphene Flagship and Chair of its Management Panel, adds: “Yet again, Graphene Flagship researchers are pioneering a new characterisation technique to facilitate the development of graphene technology. This helps us progress steadily on our innovation and technology roadmap and will benefit the industrial uptake of graphene in a wide range of applications.”


The Graphene Flagship www.graphene-flagship.eu


 


  


  


 





 Instrumentation Monthly April 2021


  39


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