All Outputs (53)

Permeability of silica monoliths containing micro- and nano-pores (2010)
Journal Article
Fletcher, P. D. I., Haswell, S. J., He, P., Kelly, S. M., & Mansfield, A. (2011). Permeability of silica monoliths containing micro- and nano-pores. Journal of Porous Materials, 18(4), 501-508. https://doi.org/10.1007/s10934-010-9403-3

For applications as catalyst supports in flow reactors, porous silica monoliths require a combination of connected pores of micron-scale to enable fluid flow plus nm-scale pores to enable high catalyst area and activity. We have synthesised a range p... Read More about Permeability of silica monoliths containing micro- and nano-pores.

One-step photoembossing for submicrometer surface relief structures in liquid crystal semiconductors (2010)
Journal Article
Liedtke, A., Lei, C., O’Neill, M., Dyer, P. E., Kitney, S. P., & Kelly, S. M. (2010). One-step photoembossing for submicrometer surface relief structures in liquid crystal semiconductors. ACS Nano, 4(6), 3248-3253. https://doi.org/10.1021/nn100012g

We report a new single-step method to directly imprint nanometer-scale structures on photoreactive organic semiconductors. A surface relief grating is spontaneously formed when a light-emitting, liquid crystalline, and semiconducting thin film is irr... Read More about One-step photoembossing for submicrometer surface relief structures in liquid crystal semiconductors.

Rod-shaped dopants for flexoelectric nematic mixtures (2009)
Journal Article
Aziz, N., Kelly, S. M., Duffy, W., & Goulding, M. (2009). Rod-shaped dopants for flexoelectric nematic mixtures. Liquid crystals, 36(5), 503-520. https://doi.org/10.1080/02678290903031643

We report the synthesis and liquid crystalline behaviour of two series of para-substituted terphenyls as dopants with a rigid rod-like shape, rather than a wedge-, pear- or banana-shape, for guest-host nematic mixtures with flexoelectric properties.... Read More about Rod-shaped dopants for flexoelectric nematic mixtures.

Electrochemical Determination of Diffusion Anisotropy in Molecularly-Structured Materials (2009)
Journal Article
Evans, L. A., Thomasson, M. J., Kelly, S. M., & Wadhawan, J. (2009). Electrochemical Determination of Diffusion Anisotropy in Molecularly-Structured Materials. Journal of physical chemistry. C, 113(20), 8901-8910. https://doi.org/10.1021/jp806322c

Theory is presented for the case of two-dimensional diffusion anisotropy in axiosymmetric systems, which, advantageously and indirectly, affords a unified theory of diffusive mass transport at planar, microdisk (or nanodisk) and cylindrical electrode... Read More about Electrochemical Determination of Diffusion Anisotropy in Molecularly-Structured Materials.

Grazing incidence X-ray diffraction of a photoaligned nematic semiconductor (2009)
Journal Article
Dröge, S., Khalifah, M. S. A., O'Neill, M., Thomas, H. E., Simmonds, H. S., Macdonald, J. E., Aldred, M. P., Vlachos, P., Kitney, S. P., Löbbert, A., & Kelly, S. M. (2009). Grazing incidence X-ray diffraction of a photoaligned nematic semiconductor. Journal of Physical Chemistry B, 113(1), 49-53. https://doi.org/10.1021/jp803379a

Grazing incidence X-ray diffraction is used to find the thin film morphology of an extended molecule with an irregular alternating fluorene - thiophene structure, which is used to obtain linearly polarized electroluminescence and the photovoltaic eff... Read More about Grazing incidence X-ray diffraction of a photoaligned nematic semiconductor.

Banana-shaped dopants for flexoelectric nematic mixtures (2008)
Journal Article
Aziz, N., Kelly, S. M., Duffy, W., & Goulding, M. (2008). Banana-shaped dopants for flexoelectric nematic mixtures. Liquid crystals, 35(11), 1279-1292. https://doi.org/10.1080/02678290802522114

The synthesis is reported of new meta-substituted quaterphenyls and several related dimers as dopants for nematic mixtures with flexoelectric properties. The number and nature of the terminal substituents is varied from apolar with a small dipole mom... Read More about Banana-shaped dopants for flexoelectric nematic mixtures.

A new approach to photoalignment: photo-addition to a self-assembled monolayer (2008)
Journal Article
Dröge, S., O'Neill, M., Löbbert, A., Kitney, S. P., Kelly, S. M., Wei, P., & Dong, D. (2009). A new approach to photoalignment: photo-addition to a self-assembled monolayer. Journal of Materials Chemistry, 19(2), 274-279. https://doi.org/10.1039/b812226a

Photoalignment used to control the orientation of nematic liquid crystals in LCDs usually involves the photochemical modification of the chemical structure of an organic thin film so that an optical and/or steric anisotropy is developed. We now demon... Read More about A new approach to photoalignment: photo-addition to a self-assembled monolayer.

White-light OLEDs using liquid crystal polymer networks (2008)
Journal Article
Liedtke, A., O'Neill, M., Wertmöller, A., Kitney, S. P., & Kelly, S. M. (2008). White-light OLEDs using liquid crystal polymer networks. Chemistry of materials : a publication of the American Chemical Society, 20(11), 3579-3586. https://doi.org/10.1021/cm702925f

We have mixed nematic light-emitting liquid crystals and incorporated them as insoluble cross-linked polymer networks in a liquid crystal white-light organic light-emitting diode (LC-WOLED). The light emission is not voltage-dependent and polarized w... Read More about White-light OLEDs using liquid crystal polymer networks.

Electroluminescent segmented liquid crystalline trimers (2008)
Journal Article
Aldred, M. P., Hudson, R., Kitney, S. P., Vlachos, P., Liedtke, A., Woon, K. L., O'Neill, M., & Kelly, S. M. (2008). Electroluminescent segmented liquid crystalline trimers. Liquid crystals, 35(4), 413-427. https://doi.org/10.1080/02678290801924931

The synthesis and liquid crystal behaviour of light-emitting trimeric liquid crystals consisting of three mesomorphic moieties connected by aliphatic spacers are reported. The combination of an aromatic light-emitting central core and two cholestanyl... Read More about Electroluminescent segmented liquid crystalline trimers.

Preparation of mesoporous Pd/Si3N4nanocomposites as heterogeneous catalysts via three different chemical routes (2006)
Journal Article
Cheng, F., Kelly, S. M., Young, N. A., Hope, C. N., Beverley, K., Francesconi, M. G., Clark, S., Bradley, J. S., & Lefebvre, F. (2006). Preparation of mesoporous Pd/Si3N4nanocomposites as heterogeneous catalysts via three different chemical routes. Chemistry of materials : a publication of the American Chemical Society, 18(25), 5996-6005. https://doi.org/10.1021/cm061106h

Mesoporous palladium/silicon nitride nanocomposites were prepared via three different chemical routes to generate simultaneous control of the solid-state morphology of the palladium nanoparticles and that of the silicon nitride support at the same ti... Read More about Preparation of mesoporous Pd/Si3N4nanocomposites as heterogeneous catalysts via three different chemical routes.

General method of preparation of mesoporous M/Si3N4 nano-composites via a non-aqueous sol-gel route (2005)
Journal Article
Cheng, F., Kelly, S. M., Young, N. A., Clark, S., Francesconi, M. G., Lefebvre, F., & Bradley, J. S. (2005). General method of preparation of mesoporous M/Si3N4 nano-composites via a non-aqueous sol-gel route. Chemical communications : Chem comm / the Royal Society of Chemistry, 5662-5664. https://doi.org/10.1039/b511790a

We report a general method for the preparation of transition-metal silicon nitride nanocomposites; for example, mesoporous Pd-Si 3 N 4 nanocomposite materials with high surface area were prepared by pyrolysis of a silicon palladium imide-chloride co... Read More about General method of preparation of mesoporous M/Si3N4 nano-composites via a non-aqueous sol-gel route.

Calamatic liquid crystal blends for organic photovoltaics
Presentation / Conference Contribution
Lei, C., Al Khalifah, M. S., O'Neill, M., Aldred, M. P., Kitney, S. P., Vlachos, P., & Kelly, S. M. Calamatic liquid crystal blends for organic photovoltaics. Paper presented at Organic Photovoltaics IX

Four different perylene-based electron-acceptors having similar electron affinities, but different thermotropic phases are blended with nematic liquid crystalline electron-donors with a fluorene-thiophene structure to form single layer photovoltaic d... Read More about Calamatic liquid crystal blends for organic photovoltaics.

Photopolymerization studies of a light-emitting liquid crystal with methacrylate reactive groups for electroluminescence
Presentation / Conference Contribution
Woon, K. L., Liedtke, A., O'Neill, M., Aldred, M. P., Kitney, S. P., Vlachos, P., Bruneau, A., & Kelly, S. M. Photopolymerization studies of a light-emitting liquid crystal with methacrylate reactive groups for electroluminescence. Paper presented at Liquid Crystals XII

Light-emitting reactive mesogens are promising materials for photolithographically processable organic light-emitting diodes (OLEDs). We study the photopolymerization of a fluorene-based mesogen with methacrylate photoreactive groups. We find that th... Read More about Photopolymerization studies of a light-emitting liquid crystal with methacrylate reactive groups for electroluminescence.