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Polymer‐free, low tension graphene mechanical resonators
Author(s) -
Alemán Benjamín,
Rousseas Michael,
Yang Yisheng,
Regan Will,
Crommie Michael,
Wang Feng,
Zettl Alex
Publication year - 2013
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201300087
Subject(s) - graphene , resonator , materials science , crystallinity , polymer , rigidity (electromagnetism) , kelvin probe force microscope , tension (geology) , composite material , nanotechnology , atomic force microscopy , optoelectronics , ultimate tensile strength
Abstract Graphene resonators are fabricated using a polymer‐free, direct transfer method onto metal reinforced holey carbon grids. The resonators are distinguished by the absence of organic residues and excellent crystallinity. The normal mode frequencies are measured using a Fabry–Perot technique; resonance curves indicate highly linear behaviour but very little built‐in strain, which is consistent with device geometry examined by atomic force microscopy. We conclude that the oscillators' restoring force is due instead to graphene's intrinsic bending rigidity; our measurements indicate a value of approximately 1.0 eV, consistent with previous theoretical and experimental work. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)