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Nanogap Device: Fabrication And Applications, Jun Hyun Han
Nanogap Device: Fabrication And Applications, Jun Hyun Han
Dissertations (1934 -)
A nanogap device as a platform for nanoscale electronic devices is presented. Integrated nanostructures on the platform have been used to functionalize the nanogap for biosensor and molecular electronics. Nanogap devices have great potential as a tool for investigating physical phenomena at the nanoscale in nanotechnology. In this dissertation, a laterally self-aligned nanogap device is presented and its feasibility is demonstrated with a nano ZnO dot light emitting diode (LED) and the growth of a metallic sharp tip forming a subnanometer gap suitable for single molecule attachment.
For realizing a nanoscale device, a resolution of patterning is critical, and many …
Plastic Deformation Investigation Of High Energy Input Friction, Tao Yan
Plastic Deformation Investigation Of High Energy Input Friction, Tao Yan
Dissertations (1934 -)
In this dissertation, plastic deformation of friction surfaces under high energy input is investigated. The plastic deformation of the friction surface and subsurface was studied and models were established to estimate deformation.
In order to calculate the plastic deformation at friction surface, an algorithm based on Ramberg-Osgood relationship was generated, and a single material model was developed based on this algorithm. Work hardening caused by plastic deformation and thermal softening caused by elevated temperature were considered in the model. To validate the model, an apparatus was designed to perform friction tests under different conditions. A special steel specimen with a …