Professor Alton Horsfall's Outputs (4)

Instability of phosphorous doped SiO2 in 4H-SiC MOS capacitors at high temperatures (2016)
Journal Article
Idris, M., Weng, M., Chan, H., Murphy, A., Clark, D., Young, R., Ramsay, E., Wright, N., & Horsfall, A. (2016). Instability of phosphorous doped SiO2 in 4H-SiC MOS capacitors at high temperatures. Journal of Applied Physics, 120(21), Article 214902. https://doi.org/10.1063/1.4969050

In this paper, the effect of inclusion of phosphorous (at a concentration below 1%) on the high temperature characteristics (up to 300 °C) of the SiO2/SiC interface is investigated. Capacitance–voltage measurements taken for a range of frequencies ha... Read More about Instability of phosphorous doped SiO2 in 4H-SiC MOS capacitors at high temperatures.

Optical properties of mesoporous 4H-SiC prepared by anodic electrochemical etching (2016)
Journal Article
Rashid, M., Horrocks, B., Healy, N., Goss, J., & Horsfall, A. (2016). Optical properties of mesoporous 4H-SiC prepared by anodic electrochemical etching. Journal of Applied Physics, 120(19), Article 194303. https://doi.org/10.1063/1.4968172

Porous silicon carbide was fabricated from n-type 4H-SiC substrates via anodic electrochemical etching in HF/ethanol solution and suspended in ethanol after ultrasonication. We observed three photoluminescence bands: two at wavelengths of 303 nm and... Read More about Optical properties of mesoporous 4H-SiC prepared by anodic electrochemical etching.

Assignment of 13C hyperfine interactions in the P1-center in diamond (2016)
Journal Article
Peaker, C., Atumi, M., Goss, J., Briddon, P., Horsfall, A., Rayson, M., & Jones, R. (2016). Assignment of 13C hyperfine interactions in the P1-center in diamond. Diamond and Related Materials, 70, 118-123. https://doi.org/10.1016/j.diamond.2016.10.013

Diamond is an attractive material due to its extreme physical properties, and has recently found a key role in the developing field of quantum bits based upon long spin coherence times at room temperature. In both natural and synthetic diamond, nitro... Read More about Assignment of 13C hyperfine interactions in the P1-center in diamond.

Surface-state dependent optical properties of OH-, F-, and H-terminated 4H-SiC quantum dots (2016)
Journal Article
Rashid, M., Tiwari, A. K., Goss, J., Rayson, M., Briddon, P., & Horsfall, A. (2016). Surface-state dependent optical properties of OH-, F-, and H-terminated 4H-SiC quantum dots. Physical Chemistry Chemical Physics, 18(31), Article 21676. https://doi.org/10.1039/c6cp03775e

Density functional calculations are performed for OH-, F- and H-terminated 4H-SiC 10–20 Å diameter clusters to investigate the effect of surface species upon the optical absorption properties. H-termination results in a pronounced size-dependent quan... Read More about Surface-state dependent optical properties of OH-, F-, and H-terminated 4H-SiC quantum dots.