@article{a8b9500b4278446786f01e38239c01e6,
title = "Elucidating charge transport mechanisms in cellulose-stabilized graphene inks",
abstract = "Solution-processed graphene inks that use ethyl cellulose as a polymer stabilizer are blade-coated into large-area thin films. Following blade-coating, the graphene thin films are cured to pyrolyze the cellulosic polymer, leaving behind an sp2-rich amorphous carbon residue that serves as a binder in addition to facilitating charge transport between graphene flakes. Systematic charge transport measurements, including temperature-dependent Hall effect and non-contact microwave resonant cavity characterization, reveal that the resulting electrically percolating graphene thin films possess high mobility (≈160 cm2 V-1 s-1), low energy gap, and thermally activated charge transport, which develop weak localization behavior at cryogenic temperatures. This journal is ",
author = "{De Moraes}, {Ana C.M.} and Jan Obrzut and Sangwan, {Vinod K.} and Downing, {Julia R.} and Chaney, {Lindsay E.} and Patel, {Dinesh K.} and Elmquist, {Randolph E.} and Hersam, {Mark C.}",
note = "Funding Information: This work was primarily supported by the U.S. Department of Commerce, National Institute of Standards and Technology (Award 70NANB19H005) as part of the Center for Hierarchical Materials Design (CHiMaD). Graphene powder production was supported by the National Science Foundation Scalable Nanomanufacturing Program (NSF CMMI-1727846). SEM and XPS characterization were performed in the Northwestern University Atomic and Nanoscale Characterization Experimental Center (NUANCE) facility, which is supported by the National Science Foundation (NSF) Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205), the Materials Research Science and Engineering Center (MRSEC) (NSF DMR-1720139), the State of Illinois, and Northwestern University. Rheometry and thermogravimetric analysis were performed in the Materials Characterization and Imaging (MatCI) Facility, which receives support from the NSF MRSEC Program (NSF DMR-1720139). Electrical characterization was performed at the National Institute of Standards and Technology, Material Measurement and Physical Measurement Laboratories. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",
year = "2020",
month = nov,
day = "21",
doi = "10.1039/d0tc03309j",
language = "English (US)",
volume = "8",
pages = "15086--15091",
journal = "Journal of Materials Chemistry C",
issn = "2050-7526",
publisher = "Royal Society of Chemistry",
number = "43",
}