In-situ scanning electron microscopy and atomic force microscopy Young's modulus determination of indium oxide microrods for micromechanical resonator applications
Author(s) -
J. Bartolomé,
P. Hidalgo,
David Maestre,
Ana Cremades,
J. Piqueras
Publication year - 2014
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.4872461
Subject(s) - scanning electron microscope , materials science , acoustic microscopy , photoconductive atomic force microscopy , elastic modulus , microscopy , conductive atomic force microscopy , resonator , atomic force acoustic microscopy , non contact atomic force microscopy , young's modulus , optics , magnetic force microscope , scanning capacitance microscopy , nanotechnology , optoelectronics , composite material , scanning confocal electron microscopy , atomic force microscopy , physics , quantum mechanics , magnetic field , magnetization
Electric field induced mechanical resonances of In2O3 microrods are studied by in-situ measurements in the chamber of a scanning electron microscope. Young's moduli of rods with different cross-sectional shapes are calculated from the resonance frequency, and a range of values between 131 and 152GPa are obtained. A quality factor of 1180-3780 is measured from the amplitude-frequency curves, revealing the suitability of In2O3 microrods as micromechanical resonators. The Young's modulus, E, of one of the rods is also measured from the elastic response in the force-displacement curve recorded in an atomic force microscope. E values obtained by in-situ scanning electron microscopy and by atomic force microscopy are found to differ in about 8%. The results provide data on Young's modulus of In2O3 and confirm the suitability of in-situ scanning electron microscopy mechanical resonance measurements to investigate the elastic behavior of semiconductor microrods
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