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Graphene Sensors: Polycrystalline Graphene Ribbons as Chemiresistors (Adv. Mater. 1/2012)
Author(s) -
SalehiKhojin Amin,
Estrada David,
Lin Kevin Y.,
Bae MyungHo,
Xiong Feng,
Pop Eric,
Masel Richard I.
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201190200
Subject(s) - graphene , materials science , crystallite , nanotechnology , metallurgy
Polycrystalline graphene sensors are presented by Richard I. Masel and co‐workers on page 53 . The image shows polycrystalline graphene ribbon chemiresistors with gold contacts visualizing linear defects or wrinkles in the graphene. Floating or attached toluene molecules act as electron donors. Such defective graphene devices exhibit a higher chemical sensitivity than pristine graphene or carbon nanotube chemire‐sistors. (Image by Alex Jerez, Beckman Institute, University of Illinois at Urbana‐Champaign.)