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Advancements in Graphene Research: Kick-off Meeting Highlights and Project Overview

The kick-off meeting for ongoing graphene research projects at the Institute of Physics, University of Tartu, was held on September 22-23, 2010, in Hindås, Sweden. Key initiatives include a 5-year national project on graphene-based nanostructures, led by Dr. Harry Alles, focusing on CVD systems for graphene growth, and a 3-year Eurographene project on entangled spin pairs in graphene, headed by Prof. Jaan Aarik. The projects encompass various graphene fabrication and characterization techniques, aiming to advance technology transfer and dissemination of knowledge in this cutting-edge field.

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Advancements in Graphene Research: Kick-off Meeting Highlights and Project Overview

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  1. RODIN (UTARTU’s node) Jaan Aarik, Harry Alles, Tauno Kahro,Jekaterina Kozlova, Valter Kiisk, Ahti Niilisk, Mihkel Rähn Kick-off meeting, 22.-23.09.2010, Hindås, Sweden

  2. Current ongoing projects on graphene (Institute of Physics,University of Tartu) • National research project “Manufacturing, processing and characterization of graphene-based nanostructures” (5-years-program, positive decision made in August, 2009; PI: Dr. Harry Alles); currently we are building up a CVD system for graphene growth • Eurocores/Eurographene project “Entangled spin pairs in graphene” (3-years-program, started from June 1st, 2010; PI: Prof. Jaan Aarik); currently we are experimenting with covering graphene with ultra thin and smooth Al2O3 layers using Atomic Layer Deposition technique

  3. RODIN/WP2: Graphene fabrication and characterization T2.1 Mechanical exfoliation • will prepare graphene samples onto different substrates using the mechanical exfoliation and characterize them by AFM and Raman T2.2 CVD and chemical exfoliation • will compare EBE, magnetic sputtering and ALD techniques in order to develop methods for preparation of flat substrates of Cu for the use in CVD of graphene

  4. RODIN/WP6: Dissemination, technology transfer and other • will administer project webpage • will disseminate the knowledge, commercial assessment and technology transfer • will report on awareness and wider societal implications • contribute to the development of the CVD process for deposition of uniform carbon layers on the substrates and Raman characterization of graphene samples

  5. RODIN/WP2: Graphene fabrication and characterization • T2.3 Fabrication and characterization of annealed DLC films for benchmark resonators • will search for methods to improve the smoothness of different metal films to control more accurately the carbon layer thickness • will (together with AALTO and UCAM-DENG) carry out the annealing of DLC samples • characterize the annealed samples with AFM and Raman spectroscopy

  6. Results: mechanical exfoliation technique

  7. Results: AFM measurements

  8. Results: Raman measurements

  9. Existing equipment: Renishaw inVia micro-Raman spectrometer - Existing laser: air-cooled Ar+ laser MODU-LASER LLC (USA); (already twice in repaiment during two years of operation) • To be replaced with: water-cooled Ar+ laser from Spectra Physics Model 2017- • 364 nm,1W, 3W, 3W,  power in 457, 488 and 514 nm lines;  + 50 mW in  363.8 nm • UV line (to be bought with the funds of RODIN)

  10. Existing equipment: E-beam evaporator and ALD reactors

  11. Existing equipment: FIB/SEM, Helios NanoLab 600 (installed in 2009)

  12. Plans within RODIN’s project • characterization of annealed DLC films (later also annealing of them) • search for the best method to prepare smooth (and thin) copper substrates • for the CVD growth of graphene • experimenting with transfer of graphene films from the copper substrates • (after CVD process) to other substrates • set up the webpage of the project

  13. Thank You for Your attention !!

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