Templated Growth of Hexagonal Nickel Carbide Nanocrystals on Vertically Aligned Carbon Nanotubes

Templated Growth of Hexagonal Nickel Carbide Nanocrystals on Vertically Aligned Carbon Nanotubes

Date: May 18, 2010
Creator: Hwang, Jun Y.; Singh, Antariksh; Chaudhari, Mrunalkumar; Tiley, Jaimie S.; Zhu, Y. T. (Yuntian T.), 1963-; Du, Jincheng et al.
Description: Article discussing the templated growth of hexagonal nickel carbon nanocrystals on vertically aligned carbon nanotubes.
Contributing Partner: UNT College of Arts and Sciences
Nanoparticle-assisted microwave absorption by single-wall carbon nanotubes

Nanoparticle-assisted microwave absorption by single-wall carbon nanotubes

Date: September 29, 2003
Creator: Wadhawan, Atul; Garrett, David & Pérez, José M.
Description: This article discusses nanoparticle-assisted microwave absorption by single-wall carbon nanotubes.
Contributing Partner: UNT College of Arts and Sciences
Band Structure and Quantum Conductance of Nanostructures from Maximally Localized Wannier Functions: The Case of Functionalized Carbon Nanotubes

Band Structure and Quantum Conductance of Nanostructures from Maximally Localized Wannier Functions: The Case of Functionalized Carbon Nanotubes

Date: August 12, 2005
Creator: Lee, Young-Su; Buongiorno Nardelli, Marco & Marzari, Nicola
Description: Article on band structure and quantum conductance of nanostructures from maximally localized Wannier functions.
Contributing Partner: UNT College of Arts and Sciences
Fullerene Coalescence in Nanopeapods: A Path to Novel Tubular Carbon

Fullerene Coalescence in Nanopeapods: A Path to Novel Tubular Carbon

Date: July 1, 2003
Creator: Hernández, E.; Meunier, Vincent; Smith, B. W.; Rurali, R.; Terrones, Humberto; Buongiorno Nardelli, Marco et al.
Description: Article on fullerene coalescence in nanopeapods, which is responsible for forming stable zeppelinlike carbon molecules.
Contributing Partner: UNT College of Arts and Sciences
UNT Research, Volume 19, 2010

UNT Research, Volume 19, 2010

Date: 2010
Creator: University of North Texas
Description: UNT Research magazine includes articles and notes about research at University of North Texas in various academic fields.
Contributing Partner: University Relations, Communications & Marketing department for UNT
Activation of water on the TiO2 (110) surface: The case of Ti adatoms

Activation of water on the TiO2 (110) surface: The case of Ti adatoms

Date: February 8, 2012
Creator: Miao, Meng; Liu, Yingchun; Wang, Qi; Wu, Tao; Huang, Liping; Gubbins, Keith E. et al.
Description: Article on the activation of water on the TiO2 (110) surface.
Contributing Partner: UNT College of Arts and Sciences
A Wet Etch Release Method for Silicon Microelectromechanical Systems (MEMS) Using Polystyrene Microspheres for Improved Yield

A Wet Etch Release Method for Silicon Microelectromechanical Systems (MEMS) Using Polystyrene Microspheres for Improved Yield

Access: Use of this item is restricted to the UNT Community.
Date: May 2004
Creator: Mantiziba, Fadziso
Description: One of the final steps in fabricating microelectromechanical devices often involves a liquid etch release process. Capillary forces during the liquid evaporation stage after the wet etch process can pull two surfaces together resulting in adhesion of suspended microstructures to the supporting substrate. This release related adhesion can greatly reduce yields. In this report, a wet etch release method that uses polystyrene microspheres in the final rinse liquid is investigated. The polystyrene microspheres act as physical barriers between the substrate and suspended microstructures during the final liquid evaporation phase. A plasma ashing process is utilized to completely remove the polystyrene microspheres from the microstructure surfaces. Using this process, release yields > 90% were achieved. It is found that the surface roughness of gold surfaces increases while that of the silicon is reduced due to a thin oxide that grows on the silicon surface during the plasma process.
Contributing Partner: UNT Libraries
UNT Research, Volume 20, 2011

UNT Research, Volume 20, 2011

Date: 2011
Creator: University of North Texas
Description: UNT Research magazine includes articles and notes about research at University of North Texas in various academic fields.
Contributing Partner: University Relations, Communications & Marketing department for UNT
First Principle Calculations of the Structure and Electronic Properties of Pentacene Based Organic and ZnO Based Inorganic Semiconducting Materials

First Principle Calculations of the Structure and Electronic Properties of Pentacene Based Organic and ZnO Based Inorganic Semiconducting Materials

Date: May 2012
Creator: Li, Yun
Description: In this thesis, I utilize first principles density functional theory (DFT) based calculations to investigate the structure and electronic properties including charge transfer behaviors and work function of two types of materials: pentacene based organic semiconductors and ZnO transparent conducting oxides, with an aim to search for high mobility n-type organic semiconductors and fine tuning work functions of ZnO through surface modifications. Based on DFT calculations of numerous structure combinations, I proposed a pentacene and perfluoro-pentacene alternating hybrid structures as a new type of n-type semiconductor. Based on the DFT calculations and Marcus charge transfer theory analysis, the new structure has high charge mobility and can be a promising new n-type organic semiconductor material. DFT calculations have been used to systematically investigate the effect of surface organic absorbate and surface defects on the work function of ZnO. It was found that increasing surface coverage of organic groups and decreasing surface defects lead to decrease of work functions, in excellent agreement with experimental results. First principles based calculations thus can greatly contribute to the investigating and designing of new electronic materials.
Contributing Partner: UNT Libraries
Ab initio transport properties of nanostructures from maximally localized Wannier functions

Ab initio transport properties of nanostructures from maximally localized Wannier functions

Date: January 22, 2004
Creator: Calzolari, Arrigo; Marzari, Nicola; Souza, Ivo & Buongiorno Nardelli, Marco
Description: Article on ab initio transport properties of nanostructures from maximally localized Wannier functions.
Contributing Partner: UNT College of Arts and Sciences
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