Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"lithography-free"”.
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Silicon nano-structure fabrication and application for surface-enhanced Raman spectroscopy
… structures produced by a high-throughput lithography-free oblique-angle plasma etching process. Nano-pillars with gradual change in height were created on the same piece of silicon. The relation between the slant angle of nano-pillars and incident angle of directional plasma is …
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Scalable Plasmonic Nanopixels
… textiles, or sensors. The whole process is lithography-free and thus readily allows to be extended with large scale processing tools, such as roll-to-roll manufacturing. Furthermore, intriguing directional optical dynamics are experimentally demonstrated in eNPoMs with ultra-thin metal …
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Black silicon and its applications in photovoltaics and biosensing
Black silicon was produced with a lithography-free three-step plasma etching method. The nanocone forest on the silicon surface makes the silicon look black. Its applications in photovoltaics and biosensing were demonstrated by experiments. For photovoltaics, sub-100 nm nanocone forest was produced …
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Photodetection using ultrathin metal films
… approach paves the way to implement scalable, lithography-free, and low-cost silicon-based optoelectronics beyond the material bandgap. Light absorption in metal films can excite hot carriers, which are useful for photodetection, solar energy conversion, and many other applications. However, …
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Scaling study of phase change memory using carbon nanotube electrodes
… than fJ/bit. We have since developed a novel lithography-free, self-aligned technique to fabricate sub 40-nm PCM nanowires with CNT electrodes. By covering our CNT device with PMMA (eBeam resist) and then passing current through the CNT, the device gets hot from Joule heating, which evaporates …
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Formation of three-dimensional graphene structures by controlled thermal activation of polymeric shape memory substrates
This thesis details methodologies for a single-step approach to realise heterogeneous, three-dimensional (3D) texturing of graphene and graphite by using thermally-activated shape-memory polymers as the underlying substrate and the material characterizations thereof. Uniform, large area arrays of …
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Surface instabilities and interfacial phenomena for nanomanufacturing at the atomically-thin limit
Two-dimensional (2D) layered materials, exemplified by the prototypical graphene, have been intensively studied for their diverse material properties and superlative mechanical strength. Due to their atomically-thin nature, weak basal plane van der Waals interactions, and vanishing bending …