While many technologies rely on multilayer heterostructures, most studies on chemical functionalization have been limited to monolayer graphene. To utilize functionalization in multilayer systems, understanding the interlayer interactions between functionalized and nonfunctionalized layers and selectively functionalizing one layer at a time is essential. This study demonstrates a method to fabricate single- or double-sided fluorinated bilayer graphene (FBG) by tailoring substrate interactions. On rough silicon dioxide (SiO2), both the top and bottom surfaces of bilayer graphene are fluorinated, whereas only the top surface is fluorinated on hexagonal boron nitride (hBN). The type of functionalization affects electronic properties: double-sided FBG on SiO2 is insulating, while single-sided FBG on hBN remains conductive, showing that the intact bottom layer becomes electrically decoupled from the fluorinated top insulating layer. This method provides a straightforward approach to selectively functionalize the top and bottom surfaces of bilayer graphene.-Scientific Journal cover design by scapiens
[Scientific Journal cover design] Low-Thermal-Budget Fluorite-Structure Ferroelectrics for Future Electronic Device Applications
In article number 2100028, Jiyoung Kim, Si Joon Kim, and their team review key factors involved in developing fluorite-structure ferroelectrics
