Mechanical properties of organic nanofibers

Jakob Kjelstrup-Hansen, Ole Hansen, H.R. Rubahn, Peter Bøggild

Research output: Contribution to journalJournal articleResearchpeer-review


Intrinsic elastic and inelastic mechanical Properties of individual, self-assembled, quasi-single-crystalline para-hexaphenylene nanofibers supported on substrates with different hydrophobicities are investigated as well as the interplay between the fibers and the underlying substrates. We find from atomic-force-microscopy-based rupture experiments a rupture shear stress of about 2 x 10(7) Pa for an individual fiber. Deflecting a nanofiber suspended across a gap results in a Young's modulus of 0.65 GPa. Translational motion of intact nanofibers across the surface is demonstrated for fibers on a silicon substrate with a low-adhesion coating, whereas such motion on a noncoated substrate is limited to very short (sub-micrometer) nanofiber pieces due to strong adhesive forces.
Original languageEnglish
Issue number5
Pages (from-to)660-666
Publication statusPublished - 2006

Fingerprint Dive into the research topics of 'Mechanical properties of organic nanofibers'. Together they form a unique fingerprint.

Cite this