University of Hull logo

Characterization of rice husk-based catalyst prepared via conventional and microwave carbonisation (2017)
Journal Article
Touhami, D., Zhu, Z., Balan, W. S., Janaun, J., Haywood, S., & Zein, S. (2017). Characterization of rice husk-based catalyst prepared via conventional and microwave carbonisation. Journal of Environmental Chemical Engineering, 5(3), (2388-2394). doi:10.1016/j.jece.2017.04.020. ISSN 2213-3437

© 2017 Elsevier Ltd. Carbon-based sulphonated catalysts (CBSCs) were made from rice husk for biodiesel production. The CBSCs were prepared by microwave (MW) and conventional heating processes from the same feedstock. In both heating systems, the prep... Read More

The use of educational game design and play in higher education to influence sustainable behaviour (2017)
Journal Article
Kythreotis, A. P., Robinson, Z. P., Stolte, T., George, S. M., Haywood, S. K., & Mercer, T. G. (2017). The use of educational game design and play in higher education to influence sustainable behaviour. International Journal of Sustainability in Higher Education, 18(3), 359-384. doi:10.1108/IJSHE-03-2015-0064

Purpose: The purpose of this paper is to discuss a novel life cycle approach to education for sustainable development (ESD) where the students become “design thinkers”. Design/methodology/approach: A case study on the creation, development and utilis... Read More

Composting paper and grass clippings with anaerobically treated palm oil mill effluent (2016)
Journal Article
Zahrim, A. Y., Leong, P. S., Ayisah, S. R., Janaun, J., Chong, K. P., Cooke, F. M., & Haywood, S. (2016). Composting paper and grass clippings with anaerobically treated palm oil mill effluent. International Journal Of Recycling of Organic Waste in Agriculture, 5(3), 221-230. doi:10.1007/s40093-016-0131-9

Purpose The purpose of this study is to investigate the composting performance of anaerobically treated palm oil mill effluent (AnPOME) mixed with paper and grass clippings. Methods Composting was conducted using a laboratory scale system for 40 days... Read More

Study of Pyridine-Mediated Electrochemical Reduction of CO2 to Methanol at High CO2 Pressure (2016)
Journal Article
Haywood, S. K., Rybchenko, S. I., Touhami, D., & Wadhawan, J. D. (2016). Study of Pyridine-Mediated Electrochemical Reduction of CO2 to Methanol at High CO2 Pressure. ChemSusChem, 9(13), (1660-1669). doi:10.1002/cssc.201600267. ISSN 1864-5631

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The recently proposed highly efficient route of pyridine-catalyzed CO 2 reduction to methanol was explored on platinum electrodes at high CO 2 pressure. At 55 bar (5.5 MPa) of CO 2 , the bulk elec... Read More

Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors (2012)
Journal Article
Hong, B. H., Rybchenko, S. I., Itskevich, I. E., Haywood, S. K., Haywood, S., Itskevich, I., …Vines, P. (2012). Modeling and analysis of intraband absorption in quantum-dot-in-well mid-infrared photodetectors. Journal of applied physics, 111(3), (033713). doi:10.1063/1.3684603. ISSN 0021-8979

Intraband absorption in quantum-dot-in-a-well (DWELL) mid-infrared photodetectors is investigated using photocurrent spectroscopy and computationally cost-effective modeling linked to experimental data. The DWELL systems are challenging for modeling... Read More

Strained arrays of colloidal nanoparticles: Conductance and magnetoresistance enhancement (2009)
Journal Article
Haywood, S. K., Itskevich, I. E., Paunov, V. N., Rybchenko, S. I., & Dyab, A. K. F. (2009). Strained arrays of colloidal nanoparticles: Conductance and magnetoresistance enhancement. Nanotechnology, 20(42), doi:10.1088/0957-4484/20/42/425607. ISSN 0957-4484

Colloidal nanoparticles are very popular as building blocks of functional arrays for electronic and optical applications. However, there is a problem in achieving electrical conductivity in such nanoarrays due to their molecular shells. These shells,... Read More

L-band-related interband transition in InSb/GaSb self-assembled quantum dots (2008)
Book
Rybchenko, S. I., Gupta, R., Itskevich, I. E., & Haywood, S. K. (2008). L-band-related interband transition in InSb/GaSb self-assembled quantum dots. Springer Proceedings in Physics; Narrow Gap Semiconductors 2007, 81-83. Springer Verlag. doi:10.1007/978-1-4020-8425-6_20

Effect of lattice-mismatch-induced strain on Γ-, X- and L-conduction-band edges in III-V self-assembled quantum dots has been calculated. The misfit strain is shown to strongly affect the band edges, leading to a possibility of Γ-L and &G... Read More

Room temperature photoluminescence at 4.5 μm from InAsN (2008)
Journal Article
Zhuang, Q., Godenir, A. M. R., Krier, A., Lai, K. T., & Haywood, S. K. (2008). Room temperature photoluminescence at 4.5 μm from InAsN. Journal of applied physics, 103(6), (063520). doi:10.1063/1.2896638. ISSN 0021-8979

Nitrogen incorporation in InAsN epilayers grown by radio-frequency plasma-assisted molecular beam epitaxy was investigated as a function of growth conditions. Reduced growth rate, growth temperature, and arsenic flux significantly enhance the nitroge... Read More

Conduction-band crossover induced by misfit strain in InSb/GaSb self-assembled quantum dots (2007)
Journal Article
Tournié, E., Baranov, A. N., Deguffroy, N., Tasco, V., Itskevich, I. E., Gupta, R., …Haywood, S. K. (2007). Conduction-band crossover induced by misfit strain in InSb/GaSb self-assembled quantum dots. Physical review B: Condensed matter and materials physics, 76(19), 0 - 0. doi:10.1103/physrevb.76.193309

We address the occurrence of conduction-band crossover in III-V self-assembled quantum dots solely due to misfit strain. Band structure analysis in terms of standard deformation-potential theory shows that Γ-X crossover can occur in the dot, while bo... Read More

Midinfrared photoluminescence and compositional modulation in pentanary GaInAsPSb alloys grown by liquid phase epitaxy (2007)
Journal Article
Krier, A., Smirnov, V. M., Batty, P. J., Yin, M., Lai, K. T., Rybchenko, S., …Kuchinskii, V. I. (2007). Midinfrared photoluminescence and compositional modulation in pentanary GaInAsPSb alloys grown by liquid phase epitaxy. Applied physics letters, 91(8), 082102. doi:10.1063/1.2768892

Room temperature photoluminescence is reported from GaInAsSbP pentanary alloys grown by liquid phase epitaxy on GaSb. The epitaxial layers exhibited emission in the midinfrared between 3 and 4 μm. Investigation of the structural and photoluminescence... Read More

Importance of aspect ratio over shape in determining the quantization potential of self-assembled zinc-blende III-V quantum dots (2007)
Journal Article
Gupta, R., Yeap, G., Rybchenko, S. I., Itskevich, I. E., & Haywood, S. K. (2007). Importance of aspect ratio over shape in determining the quantization potential of self-assembled zinc-blende III-V quantum dots. Journal of applied physics, 102(1), 013706. doi:10.1063/1.2752127

We have studied the effect of shape on the strain-modified electron/hole confinement potential in zinc-blende quantum dots (QDs), using standard deformation potential theory and an anisotropic continuum-elasticity approximation. Calculations were per... Read More

Electric field induced blueshift of the e1-hh1 exciton transition in a GaAs1-xNx/GaAs (x<1%) stepped quantum well (2006)
Journal Article
Hill, G., Hopkinson, M., Steer, M. J., Gupta, R., Lim, A. C., & Haywood, S. K. (2006). Electric field induced blueshift of the e1-hh1 exciton transition in a GaAs1-xNx/GaAs (x<1%) stepped quantum well. Applied physics letters, 89(26), 261110. doi:10.1063/1.2424278

The authors present room temperature photoluminescence and photocurrent measurements on a three layer GaAsNGaAs Al0.35 Ga0.65 As (N≤1%) stepped quantum well. A blueshift in the ground state transition energy is observed with the application of an ele... Read More