5 papers
Molecularly Thin Polyaramid Nanomechanical Resonators
Hagen Gress, Cody L. Ritt, Inal Shomakhov +8
Two-dimensional polyaramids exhibit strong hydrogen bonding to create molecularly thin nanosheets analogous to graphene. Here, we report the first nanomechanical resonators made ou…
Observation of Pull-in Instability in Graphene Membranes under Interfacial Forces
Xinghui Liu, Narasimha G. Boddeti, Mariah R. Szpunar +6
We present a unique experimental configuration that allows us to determine the interfacial forces on nearly parallel plates made from the thinnest possible mechanical structures, s…
Mechanics of Adhered, Pressurized Graphene Blisters
Narasimha G. Boddeti, Steven P. Koenig, Rong Long +3
We study the mechanics of pressurized graphene membranes using an experimental configuration that allows the determination of the elasticity of graphene and the adhesion energy bet…
Selective Molecular Sieving through Porous Graphene
Steven P. Koenig, Luda Wang, John Pellegrino +1
Membranes act as selective barriers and play an important role in processes such as cellular compartmentalization and industrial-scale chemical and gas purification. The ideal memb…
Ultra-strong Adhesion of Graphene Membranes
Steven P. Koenig, Narasimha G. Boddeti, Martin L. Dunn +1
As mechanical structures enter the nanoscale regime, the influence of van der Waals forces increases. Graphene is attractive for nanomechanical systems because its Young's modulus…