@article{2294918454a84515b6498f107e2a3294,
title = "Mobility enhancement of organic field-effect transistor based on guanine trap-neutralizing layer",
abstract = "We introduced a nucleic acid component guanine as a trap-neutralizing layer between silicon dioxide gate dielectric and a pentacene semiconducting layer to obtain increased field-effect mobility in organic field-effect transistors (OFETs). A tripling of the field-effect mobility, from 0.13 to 0.42 cm2/V s, was achieved by introducing a 2 nm guanine layer. By characterizing the surface morphology of pentacene films grown on guanine, we found that the effect of guanine layer on the topography of pentacene film was not responsible for the mobility enhancement of the OFETs. The increased field-effect mobility was mainly attributed to the hydrogen bonding capacity of otherwise unassociated guanine molecules, which enabled them to neutralize trapping sites on the silicon dioxide surface.",
author = "Wei Shi and Yifan Zheng and Junsheng Yu and Taylor, {Andr{\'e} D.} and Katz, {Howard E.}",
note = "Funding Information: This research was funded by the National Natural Science Foundation of China (NSFC) (Grant No. 61675041), the Fundamental Research Funds for the Central Universities (Grant No. ZYGX2010Z004), the Foundation of Innovation Groups of NSFC (Grant No. 61421002), the China Scholarship Council (File No. 201506070085 and No. 201506070069), and Science and Technology Department of Sichuan Province (Grant No. 2016HH0027). We acknowledged the Environmental Protection Agency SEARCH grant for funding at Johns Hopkins University. The Yale Institute for Nanoscience and Quantum Engineering (YINQE) and NSF MRSEC DMR 1119826 (CRISP) provided facility support. We also acknowledged Yuhang Yang in our group for helping us with some experiment preparations. Publisher Copyright: {\textcopyright} 2016 Author(s).",
year = "2016",
month = oct,
day = "3",
doi = "10.1063/1.4963882",
language = "English (US)",
volume = "109",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "14",
}