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Characterization of hot-carrier induced degradation via small-signal characteristics in mosfets /Lau, Mei Po Mabel. January 2001 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2002. / Includes bibliographical references.
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Graphene field effect transistors for high performance flexible nanoelectronicsLee, Jongho, active 21st century 03 July 2014 (has links)
Despite the widespread interest in graphene electronics over the last decade, high-performance graphene field-effect transistors (GFETs) on flexible substrates have been rarely achieved, even though this atomic sheet is widely understood to have greater prospects for flexible electronic systems. In this work, we investigate the realization of high-performance graphene field effect transistors implemented on flexible plastic substrates. The optimum device structure for high-mobility and high-bendability is suggested with experimental comparison among diverse structures including top-gate GFETs (TG-GFETs), single/multi-finger embedded-gate GFETs with high-k dielectrics (EG-highk/GFETs), and embedded-gate GFETs with hexagonal boron nitride (h-BN) dielectrics. Flexible graphene transistors with high-k dielectric afforded intrinsic gain, maximum carrier mobility of 8,000 cm²/V·s, and importantly 32 GHz cut-off frequency. Mechanical studies reveal robust transistor performance under repeated bending down to 0.7 mm bending radius whose tensile strain corresponds to 8.6%. Passivation techniques, with robust mechanical and chemical protection in order to operate under harsh environments, for embedded-gate structures are also covered. The integration of functional coatings such as highly hydrophobic fluoropolymers combined with the self-passivation properties of the polyimide substrate provides water-resistant protection without compromising flexibility, which is an important advancement for the realization of future robust flexible systems based on graphene. / text
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Analyses of device characteristics in low voltage p-, new material n-, and dual-channel organic field-effect transistorsJeong, Yeon Taek, 1971- 29 August 2008 (has links)
Not available / text
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Bandgap engineering in vertical MOSFETsChen, Xiangdong, 1972- 07 March 2011 (has links)
Not available / text
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Semiclassical Monte Carlo simulation of nano-scaled semiconductor devicesGhosh, Bahniman, 1971- 18 August 2011 (has links)
Not available / text
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Establishing structure : performance relationships in semiconducting polymer field effect transistorsSchüttfort, Torben January 2012 (has links)
No description available.
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Ultrapurification and deposition of polyaromatic hydrocarbons for field effect transistorsRoberson, Luke Bennett 08 1900 (has links)
No description available.
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Numerical studies of heterojunction transport and High Electron Mobility Transistor (HEMT) devicesYu, Tsung-Hsing 12 1900 (has links)
No description available.
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Porphyrin arrays for FET devicesWicks, Matthew January 2004 (has links)
Field effect transistors (FETs) are a key component of modern electronic devices. They require a semiconducting material that is traditionally made from doped silicon. Recently however it has been shown that porphyrin systems can be used in the same capacity. This thesis therefore describes the investigation of new methods of porphyrin functionalization to synthesise 1,4,5,8-tetraazaanthracene-bridged porphyrin arrays, and their application to the synthesis of extended arrays for use in FETs. The 1,4,5,8- tetraazaanthracene bridge is synthesised through the condensation of a porphyrin alpha-dione with 1,2,4,5-tetraaminobenzene. Accordingly, the synthesis of an extended array requires a porphyrin tetra-one monomer unit. Two methods for the synthesis of porphyrin tetra-ones have been investigated. The first approach attempts to adapt Knudsen's hydroxylation of an aryl halide by sodium benzaldoximate to a porphyrin system. Initial regiospecific halogenation of a porphyrin has been successfully achieved. However when hydroxylation was attempted, partial dehalogenation of the substrate was observed; and when applied to the synthesis of the porphyrin tetra-one the methodology failed. The second approach involves the allylic oxidation of a chlorin (a reduced porphyrin) on silica. The transformation's mechanism has been thoroughly investigated and it has been successfully applied to the synthesis of a porphyrin tetra-one. This methodology has then been applied to the synthesis of extended porphyrin arrays. A sample incorporating 12 porphyrin units has been successfully constructed. It has been characterised by NMR, MALDI, GPC and UV-VIS spectroscopy. By comparison with previous results it has been concluded that the aromatic system- which spans 181 Ǻngstroms from end to end- can be described as a series of weakly interacting chromophores, in agreement with theoretical predictions made by Hush. In addition a medium-scale synthesis of an array incorporating four porphyrins has been achieved so that it may now be tested as the semiconducting material in a FET.
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Advanced technology for source drain resistance reduction in nanoscale FinFETsSmith, Casey Eben. Reidy, Richard F., January 2008 (has links)
Thesis (Ph. D.)--University of North Texas, May, 2008. / Title from title page display. Includes bibliographical references.
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