Outputs (691)

Magnetoresistance signature of resonant states in electromigrated Ni nanocontacts (2011)
Journal Article
Beaufrand, J. B., Dayen, J. F., Kemp, N. T., Sokolov, A., & Doudin, B. (2011). Magnetoresistance signature of resonant states in electromigrated Ni nanocontacts. Applied physics letters, 98(14), 142504-1 - 142504-3. https://doi.org/10.1063/1.3576939

Fundamental insight is reported into magnetoresistance properties of ballistic-type atomic size Ni nanojunctions obtained at low temperatures. Feedback-controlled electromigration was used to reveal the ballistic nature of the transport and stabilize... Read More about Magnetoresistance signature of resonant states in electromigrated Ni nanocontacts.

Determination of molecular vibrational state energies using the ab initio semiclassical initial value representation: application to formaldehyde (2011)
Journal Article
Wong, S. Y. Y., Benoit, D. M., Lewerenz, M., Brown, A., & Roy, P.-N. (2011). Determination of molecular vibrational state energies using the ab initio semiclassical initial value representation: application to formaldehyde. The Journal of chemical physics, 134(9), Article 094110. https://doi.org/10.1063/1.3553179

We have demonstrated the use of ab initio molecular dynamics (AIMD) trajectories to compute the vibrational energy levels of molecular systems in the context of the semiclassical initial value representation (SC-IVR). A relatively low level of electr... Read More about Determination of molecular vibrational state energies using the ab initio semiclassical initial value representation: application to formaldehyde.

Resolution of pentafluorophenyl 2-phenylpropanoate using combinations of quasi-enantiomeric oxazolidin-2-ones (2011)
Journal Article
Al Shaye, N., Benoit, D. M., Chavda, S., Coulbeck, E., Dingjan, M., Eames, J., & Yohannes, Y. (2011). Resolution of pentafluorophenyl 2-phenylpropanoate using combinations of quasi-enantiomeric oxazolidin-2-ones. Tetrahedron: Asymmetry, 22(4), 413-438. https://doi.org/10.1016/j.tetasy.2011.02.022

The kinetic, mutual and parallel resolution of a series of structurally related active esters derived from 2-phenylpropanoic acid using a combination of quasi-enantiomeric oxazolidin-2-ones is discussed.

Continuously tuneable optical filters from self-assembled block copolymer blends (2011)
Journal Article
Parnell, A. J., Pryke, A., Mykhaylyk, O. O., Howse, J. R., Adawi, A. M., Terrill, N. J., & Fairclough, J. P. A. (2011). Continuously tuneable optical filters from self-assembled block copolymer blends. Soft matter, 7(8), 3721. https://doi.org/10.1039/c0sm01320j

We demonstrate that two symmetric high molecular weight diblock copolymers, of differing molecular weights, can be blended together and subsequently shear aligned to form one photonic structure without macrophase separation. The lameller period depen... Read More about Continuously tuneable optical filters from self-assembled block copolymer blends.

Electronic transport in conducting polymer nanowire array devices (2011)
Journal Article
Kemp, N. T., Newbury, R., Cochrane, J. W., & Dujardin, E. (2011). Electronic transport in conducting polymer nanowire array devices. Nanotechnology, 22(10), Article ARTN 105202. https://doi.org/10.1088/0957-4484/22/10/105202

We report on the temperature dependent conductivity and current-voltage (I-V) properties of novel polyaniline nanowire array devices. Below 60 K, I-V measurements show a transition to non-linear behaviour, leading to the onset at 30 K of a threshold... Read More about Electronic transport in conducting polymer nanowire array devices.

Novel antenna-integrated photodiodes with strained absorbers designed for use as terahertz sources (2011)
Journal Article
Henning, I. D., Adams, M. J., Vaughan, M., Abraham, T., Sun, Y., Dyson, A., Moodie, D. G., Rogers, D. C., Cannard, P. J., Dosanjh, S., Skuse, M., & Firth, R. J. (2011). Novel antenna-integrated photodiodes with strained absorbers designed for use as terahertz sources. IEEE Journal of Selected Topics in Quantum Electronics, 17(1), 202-209. https://doi.org/10.1109/jstqe.2010.2049196

We present experimental results on the performance of antenna-integrated photodiodes intended for use as photomixers to provide a tunable broadband source of terahertz (THz) radiation. In a balanced strain-absorber structure, we show that the introdu... Read More about Novel antenna-integrated photodiodes with strained absorbers designed for use as terahertz sources.

Ordered materials for organic electronics and photonics (2010)
Journal Article
O’Neill, M., & Kelly, S. M. (2011). Ordered materials for organic electronics and photonics. Advanced materials, 23(5), 566-584. https://doi.org/10.1002/adma.201002884

We present a critical review of semiconducting/light emitting, liquid crystalline materials and their use in electronic and photonic devices such as transistors, photovoltaics, OLEDs and lasers. We report that annealing from the mesophase improves th... Read More about Ordered materials for organic electronics and photonics.

Controlling the micellar morphology of binary PEO-PCL block copolymers in water-THF through controlled blending (2010)
Journal Article
Schuetz, P., Greenall, M. J., Bent, J., Furzeland, S., Atkins, D., Butler, M. F., McLeish, T. C. B., & Buzza, D. M. A. (2011). Controlling the micellar morphology of binary PEO-PCL block copolymers in water-THF through controlled blending. Soft matter, 7(2), 749-759. https://doi.org/10.1039/c0sm00938e

We study both experimentally and theoretically the self-assembly of binary polycaprolactone-polyethylene oxide (PCL-PEO) block copolymers in dilute solution, where self-assembly is triggered by changing the solvent from the common good solvent THF to... Read More about Controlling the micellar morphology of binary PEO-PCL block copolymers in water-THF through controlled blending.

Vibrations of a single adsorbed organic molecule: anharmonicity matters! (2010)
Journal Article
Ulusoy, I. S., Scribano, Y., Benoit, D. M., Tschetschetkin, A., Maurer, N., Koslowski, B., & Ziemann, P. (2011). Vibrations of a single adsorbed organic molecule: anharmonicity matters!. Physical chemistry chemical physics : PCCP, 13(2), 612-618. https://doi.org/10.1039/c0cp01289k

Vibrational spectroscopy is a powerful tool to identify molecules and to characterise their chemical state. Inelastic electron tunnelling spectroscopy (IETS) combined with scanning tunnelling microscopy (STM) allows the application of vibrational ana... Read More about Vibrations of a single adsorbed organic molecule: anharmonicity matters!.

Carbazole nematic liquid crystals (2010)
Journal Article
Bao, W., Billa, M. R., Kassireddy, K., Haro, M., Kelly, M. J., Kitney, S. P., Al Kalifah, M. S., Wei, P., Dong, D., O'Neill, M., & Kelly, S. M. (2010). Carbazole nematic liquid crystals. Liquid crystals, 37(10), 1289-1303. https://doi.org/10.1080/02678292.2010.504862

A number of calamitic 2,7-diary-N-alkyl-substituted carbazoles with an enantiotropic nematic phase have been prepared. Branching of the aliphatic chain attached to the nitrogen atom in the carbazole ring leads to significantly lower liquid crystal tr... Read More about Carbazole nematic liquid crystals.