Graphene on graphene formation from PMMA residues during annealing
2017 (English)In: Vacuum, ISSN 0042-207X, E-ISSN 1879-2715, Vol. 137, 191-194 p.Article in journal (Refereed) Published
PMMA is a common support material for transferring graphene between substrates. However, PMMA residues typically remain on the graphene sheet after the transfer process. A high temperature annealing process is commonly applied to reduce the amount of PMMA residues. It is also known that high temperature annealing of PMMA causes the PMMA to graphitize, which has been used as a method to synthesize graphene on metal substrates. In this letter we show the development of additional graphene layers during high temperature annealing, which occurs on a single, clean, graphene sheet. The additional graphene is nucleated from the decomposition products of PMMA residues. (C) 2017 Elsevier Ltd. All rights reserved.
Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2017. Vol. 137, 191-194 p.
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:liu:diva-136055DOI: 10.1016/j.vacuum.2017.01.004ISI: 000394070200028OAI: oai:DiVA.org:liu-136055DiVA: diva2:1084843
Funding Agencies|Swedish Research Council [621-2012-4359, 622-2008-405, 642-2013-8020]; European Research Council ; Olle Engkvist foundation; IBS Korea; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009 00971]2017-03-272017-03-272017-04-03