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Full-Text Articles in Nanoscience and Nanotechnology
Laser Direct Written Silicon Nanowires For Electronic And Sensing Applications, Woongsik Nam
Laser Direct Written Silicon Nanowires For Electronic And Sensing Applications, Woongsik Nam
Open Access Dissertations
Silicon nanowires are promising building blocks for high-performance electronics and chemical/biological sensing devices due to their ultra-small body and high surface-to-volume ratios. However, the lack of the ability to assemble and position nanowires in a highly controlled manner still remains an obstacle to fully exploiting the substantial potential of nanowires. Here we demonstrate a one-step method to synthesize intrinsic and doped silicon nanowires for device applications. Sub-diffraction limited nanowires as thin as 60 nm are synthesized using laser direct writing in combination with chemical vapor deposition, which has the advantages of in-situ doping, catalyst-free growth, and precise control of position, …
Tailoring The Optical Properties Of Silicon With Ion Beam Created Nanostructures For Advanced Photonics Applications, Perveen Akhter
Tailoring The Optical Properties Of Silicon With Ion Beam Created Nanostructures For Advanced Photonics Applications, Perveen Akhter
Legacy Theses & Dissertations (2009 - 2024)
In today’s fast life, energy consumption has increased more than ever and with that the demand for a renewable and cleaner energy source as a substitute for the fossil fuels has also increased. Solar radiations are the ultimate source of energy but harvesting this energy in a cost effective way is a challenging task. Si is the dominating material for microelectronics and photovoltaics. But owing to its indirect band gap, Si is an inefficient light absorber, thus requiring a thickness of solar cells beyond tens of microns which increases the cost of solar energy. Therefore, techniques to increase light absorption …
The Investigation Of Nanoscale Effects On Schottky Interfaces And The Scattering Rates Of High Resistivity Metals, Christopher Anthony Durcan
The Investigation Of Nanoscale Effects On Schottky Interfaces And The Scattering Rates Of High Resistivity Metals, Christopher Anthony Durcan
Legacy Theses & Dissertations (2009 - 2024)
Understanding the transport of electrons through materials and across interfaces is fundamental to modern day electronics. As electrons travel, interactions with defects within the crystal lattice induce scattering which gives rise to resistivity. At the interface between two materials, electrostatic barriers exist which can impede the flow of electrons. The work of this thesis is to further the understanding of electron transport by measuring the transport across metal-semiconductor interfaces at the nanoscale and measure scattering phenomena in metals. The measurement technique ballistic electron emission microscopy (BEEM) was used due to its ability to probe the scattering processes within a metal …