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Charge Transfer and Current Fluctuations in Single Layer Graphene Transistors Modified by Self‐Assembled C 60 Adlayers
Author(s) -
Wang Rui,
Wang Shengnan,
Wang Xiaowei,
Meyer Jakob A. S.,
Hedegård Per,
Laursen Bo W.,
Cheng Zhihai,
Qiu Xiaohui
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201300869
Subject(s) - graphene , materials science , flicker noise , transistor , charge (physics) , trapping , chemical physics , coupling (piping) , noise (video) , current (fluid) , optoelectronics , fullerene , nanotechnology , coulomb blockade , graphene nanoribbons , condensed matter physics , chemistry , physics , voltage , cmos , artificial intelligence , noise figure , image (mathematics) , amplifier , ecology , computer science , biology , quantum mechanics , metallurgy , thermodynamics , organic chemistry
Flicker noise in a “fullerene + graphene” hybrid transistor is investigated to reveal the electrical coupling between the graphene channel and C 60 adsorbates. The charge trapping and detrapping events at the C 60 /graphene interface induce current fluctuations in the devices. The evolution of noise characteristics at varying temperatures indicates the different contributions related to Coulomb scattering and charge exchange kinetics.