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This chapter describes the implementation of Proton-fountain Electric-field-assisted Nanolithography (PEN) as a potential tool for fabricating nanostructures by exploiting the properties of stimuli-responsive materials. The merits of PEN are demonstrated using poly(4-vinylpyridine) (P4VP) films, whose structural (swelling) response is triggered by the delivery of protons from an acidic fountain tip...
Full understanding of the physics underlying the striking changes—in viscoelasticity, relaxation time, and phase transitions—that mesoscopic fluid-like systems undergo when placed under confinement or when adsorbed at solid surfaces constitutes a long standing scientific challenge. One of the methods used to characterize these films consists of bringing a solid boundary closer to another solid boundary...
We propose to use infrared light coupled with a near field scanning optical microscope (NSOM) to probe organic materials. The initial emphasis will be on the 2.8 – 3.25 µm range, which contains bands from both C - H and O - H stretching vibrations. This provides great sensitivity to specific chemical alterations as induced, e.g., in a photoresist by exposure and/or development. We have attempted to...
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