6533b870fe1ef96bd12d053b

RESEARCH PRODUCT

Real-time manipulation of gold nanoparticles inside a scanning electron microscope

Rünno LõhmusSergei VlassovBoris PolyakovBoris PolyakovAnts LõhmusLeonid M. DoroginEnrico GneccoIlmar KinkAlexey E. Romanov

subject

Materials scienceNanomanipulatorSiliconbusiness.industryOscillationScanning electron microscopeNanoparticlechemistry.chemical_elementGeneral ChemistryTungstenCondensed Matter PhysicsShear (sheet metal)OpticschemistryMaterials ChemistryParticleComposite materialbusiness

description

Abstract The forces needed to overcome static friction and move 150 nm diameter Au nanoparticles on an oxidized Si substrate were measured in Normal and Shear oscillation modes inside a scanning electron microscope (SEM) in real time. The experimental setup consisted of a quartz tuning fork (QTF) mounted onto a high-precision 3D nanomanipulator used with a glued silicon or tungsten tip as a force sensor. Static friction was found to range from tens of nN to several hundred nN. Large variations in static friction values were related to differences in particle shape. Kinetic friction tended to be close to the detection limit and in most cases did not exceed several nN. The influence of thermal treatment in reducing the static friction of nanoparticles was considered.

yearjournalcountryeditionlanguage
2011-05-01Solid State Communications
https://doi.org/10.1016/j.ssc.2011.02.020