We theoretically predict the possibility of controlling the band-gap and carrier type of bilayer graphene by using ionic molecules. We can control the semiconducting carrier type (intrinsic, p-type, or n-type) of bilayer graphene sandwiched by ionic molecules by changing the cation-anion pair.
JST CREST Research Area “Research of Innovative Material and Process for Creation of Next-generation Electronics Devices” , Research Theme: “Design and study of graphite devices based on computational science”
Published in the scientific journal “Applied Physics Letters”
Nguyen Thanh Cuong, Minoru Otani, and Susumu Okada “Electron-state engineering of bilayer graphene by ionic molecules” Appl. Phys. Lett., 101, 233106 (2012)
Susumu OKADA, Ph.D.
Associate Professor, Department of Frontier Science, University of Tsukuba
ICT Group, Department of Innovation Research, Japan Science and Technology Agency