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Dr Michael Fay's Outputs (72)

Ligand-induced control of photoconductive gain and doping in a hybrid graphene-quantum dot transistor (2015)
Journal Article
Turyanska, L., Makarovsky, O., Svatek, S. A., Beton, P. H., Mellor, C. J., Patanè, A., Eaves, L., Thomas, N. R., Fay, M. W., Marsden, A. J., & Wilson, N. R. (2015). Ligand-induced control of photoconductive gain and doping in a hybrid graphene-quantum dot transistor. Advanced Electronic Materials, 1(7), 1500062. https://doi.org/10.1002/aelm.201500062

In graphene devices decorated with a layer of near-infrared colloidal PbS quantum dots (QDs), the choice of the QD capping ligands and the integrity of the QD layer have a strong influence on the doping, carrier mobility, and photoresponse. By using... Read More about Ligand-induced control of photoconductive gain and doping in a hybrid graphene-quantum dot transistor.

Room Temperature Electroluminescence from Mechanically Formed van der Waals III-VI Homojunctions and Heterojunctions (2014)
Journal Article
Balakrishnan, N., Kudrynskyi, Z. R., Fay, M. W., Mudd, G. W., Svatek, S. A., Makarovsky, O., Kovalyuk, Z. D., Eaves, L., Beton, P. H., & Patanè, A. (2014). Room Temperature Electroluminescence from Mechanically Formed van der Waals III-VI Homojunctions and Heterojunctions. Advanced Optical Materials, 2(11), 1064-1069. https://doi.org/10.1002/adom.201400202

Room temperature electroluminescence from semiconductor junctions is demonstrated. The junctions are fabricated by the exfoliation and direct mechanical adhesion of InSe and GaSe van der Waals layered crystals. Homojunction diodes formed from layers... Read More about Room Temperature Electroluminescence from Mechanically Formed van der Waals III-VI Homojunctions and Heterojunctions.

Tuneable paramagnetic susceptibility and exciton g-factor in Mn-doped PbS colloidal nanocrystals (2014)
Journal Article
Turyanska, L., Hill, R. J. A., Makarovsky, O., Moro, F., Knott, A. N., Larkin, O. J., Patanè, A., Meaney, A., Christianen, P. C. M., Fay, M. W., & Curry, R. J. (2014). Tuneable paramagnetic susceptibility and exciton g-factor in Mn-doped PbS colloidal nanocrystals. Nanoscale, 6(15), 8919-8925. https://doi.org/10.1039/c4nr02336f

We report on PbS colloidal nanocrystals that combine within one structure solubility in physiological solvents with near-infrared photoluminescence, and magnetic and optical properties tuneable by the controlled incorporation of magnetic impurities (... Read More about Tuneable paramagnetic susceptibility and exciton g-factor in Mn-doped PbS colloidal nanocrystals.

First Identification of Rare-Earth Oxide Nucleation in Chalcogenide Glasses and Implications for Fabrication of Mid-Infrared Active Fibers (2013)
Journal Article
Tang, Z., Furniss, D., Fay, M., Neate, N. C., Cheng, Y., Barney, E., Sojka, L., Sujecki, S., Benson, T. M., & Seddon, A. B. (2014). First Identification of Rare-Earth Oxide Nucleation in Chalcogenide Glasses and Implications for Fabrication of Mid-Infrared Active Fibers. Journal of the American Ceramic Society, 97(2), 432-441. https://doi.org/10.1111/jace.12732

Gallium (Ga) helps solubilize rare-earth ions in chalcogenide glasses, but has been found to form the dominant crystallizing selenide phase in bulk glass in our previous work. Here, the crystallization behavior is compared of as-annealed 0–3000 ppmw... Read More about First Identification of Rare-Earth Oxide Nucleation in Chalcogenide Glasses and Implications for Fabrication of Mid-Infrared Active Fibers.

Application of nanoparticle tracking analysis platform for the measurement of soot-in-oil agglomerates from automotive engines (2013)
Journal Article
La Rocca, A., Di Liberto, G., Shayler, P., Parmenter, C., & Fay, M. (2014). Application of nanoparticle tracking analysis platform for the measurement of soot-in-oil agglomerates from automotive engines. Tribology International, 70, 142-147. https://doi.org/10.1016/j.triboint.2013.09.018

Nanoparticle Tracking Analysis (NTA) has been applied to characterising soot agglomerates of particles and compared with Transmission Electron Microscoscopy (TEM). Soot nanoparticles were extracted from used oil drawn from the sump of a light duty au... Read More about Application of nanoparticle tracking analysis platform for the measurement of soot-in-oil agglomerates from automotive engines.

Paramagnetic, near-infrared fluorescent Mn-doped PbS colloidal nanocrystals (2013)
Journal Article
Turyanska, L., Moro, F., Knott, A. N., Fay, M. W., Bradshaw, T. D., & Patanè, A. (2013). Paramagnetic, near-infrared fluorescent Mn-doped PbS colloidal nanocrystals. Particle and Particle Systems Characterization, 30(11), https://doi.org/10.1002/ppsc.201300184

Mn-doped PbS colloidal nanocrystals in aqueous solution are paramagnetic and optically active in the technologically important biological window between 1.2 and 0.8 μm. Cytoxicity studies show that exposure of human cell lines to the nanoparticles at... Read More about Paramagnetic, near-infrared fluorescent Mn-doped PbS colloidal nanocrystals.

TEM study on the electrical discharge machined surface of single-crystal silicon (2013)
Journal Article
Murray, J., Fay, M., Kunieda, M., & Clare, A. (2013). TEM study on the electrical discharge machined surface of single-crystal silicon. Journal of Materials Processing Technology, 213(5), https://doi.org/10.1016/j.jmatprotec.2012.11.028

EDM is a useful process for machining high-aspect ratio features with good accuracy in electrically conductive materials irrespective of their mechanical properties. With the ability of micro-EDM to compete with the resolution of conventional semi-co... Read More about TEM study on the electrical discharge machined surface of single-crystal silicon.

Band-gap profiling by laser writing of hydrogen-containing III-N-Vs (2012)
Journal Article
Balakrishnan, N., Pettinari, G., Makarovsky, O., Turyanska, L., Fay, M. W., De Luca, M., Polimeni, A., Capizzi, M., Martelli, F., Rubini, S., & Patanè, A. (2012). Band-gap profiling by laser writing of hydrogen-containing III-N-Vs. Physical review B: Condensed matter and materials physics, 86(15), Article 155307. https://doi.org/10.1103/PhysRevB.86.155307

We show that the dissociation of the N-H complex in hydrogenated III-N-Vs can be laser activated at temperatures that are significantly smaller than those (>200°C) required for thermal dissociation due to a resonant photon absorption by the N-H compl... Read More about Band-gap profiling by laser writing of hydrogen-containing III-N-Vs.

Interactions of gold nanoparticles with the interior of hollow graphitized carbon nanofibers (2012)
Journal Article
La Torre, A., Fay, M. W., Rance, G. A., Del Carmen Gimenez-Lopez, M., Solomonsz, W. A., Brown, P. D., & Khlobystov, A. N. (2012). Interactions of gold nanoparticles with the interior of hollow graphitized carbon nanofibers. Small, 8(8), 1222-1228. https://doi.org/10.1002/smll.201102007

Interactions of free-standing gold nanoparticles and hollow graphitized nanofibers in colloidal suspension are investigated, revealing the first example of the controlled arrangement of nanoparticles inside nano-containers, as directed by their inter... Read More about Interactions of gold nanoparticles with the interior of hollow graphitized carbon nanofibers.

Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content (2008)
Journal Article
Fay, M. W., Han, Y., Brown, P. D., Harrison, I., Hilton, K., Munday, A., Wallis, D., Balmer, R., Uren, M., & Martin, T. (2008). Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content. Journal of Applied Physics, 103(7), https://doi.org/10.1063/1.2890978

The effect of varying annealing temperature and Al layer thickness on the structural and electrical characteristics of AuPtAlTi/AlGaN/GaN ohmic contact structures has been systematically investigated. The relationship between annealing temperature, A... Read More about Structural and electrical characterization of AuPtAlTi ohmic contacts to AlGaN/GaN with varying annealing temperature and Al content.