Outputs (9)

Revealing microscale bulk structures in polymer–carbon nanocomposites using spin-echo SANS (2024)
Journal Article
Tiihonen, L. V., Weir, M. P., Parnell, A. J., Boothroyd, S. C., Johnson, D. W., Dalgliesh, R. M., Bleuel, M., Duif, C. P., Bouwman, W. G., Thompson, R. L., Coleman, K. S., Clarke, N., Hamilton, W. A., Washington, A. L., & Parnell, S. R. (2024). Revealing microscale bulk structures in polymer–carbon nanocomposites using spin-echo SANS. Soft Matter, 20(43), 8663-8674. https://doi.org/10.1039/d4sm00578c

We have used spin-echo small-angle neutron scattering (SESANS) to probe the hierarchy of structures present in polymer-carbon nanocomposites, with length scales spanning over three orders of magnitude, from 10 nm to 16 μm. The data processing and red... Read More about Revealing microscale bulk structures in polymer–carbon nanocomposites using spin-echo SANS.

Ligand-Directed Self-Assembly of Organic-Semiconductor/Quantum-Dot Blend Films Enables Efficient Triplet Exciton-Photon Conversion (2024)
Journal Article
Gray, V., Toolan, D. T. W., Dowland, S., Allardice, J. R., Weir, M. P., Zhang, Z., Xiao, J., Klimash, A., Winkel, J. F., Holland, E. K., Fregoso, G. M., Anthony, J. E., Bronstein, H., Friend, R., Ryan, A. J., Jones, R. A. L., Greenham, N. C., & Rao, A. (2024). Ligand-Directed Self-Assembly of Organic-Semiconductor/Quantum-Dot Blend Films Enables Efficient Triplet Exciton-Photon Conversion. Journal of the American Chemical Society, 146(11), 7763-7770. https://doi.org/10.1021/jacs.4c00125

Blends comprising organic semiconductors and inorganic quantum dots (QDs) are relevant for many optoelectronic applications and devices. However, the individual components in organic-QD blends have a strong tendency to aggregate and phase-separate du... Read More about Ligand-Directed Self-Assembly of Organic-Semiconductor/Quantum-Dot Blend Films Enables Efficient Triplet Exciton-Photon Conversion.

Bi2Se3 interlayer treatments affecting the Y3Fe5O12 (YIG) platinum spin Seebeck effect (2023)
Journal Article
Hu, Y., Weir, M. P., Pereira, H. J., Amin, O. J., Pitcairn, J., Cliffe, M. J., Rushforth, A. W., Kunakova, G., Niherysh, K., Korolkov, V., Kertfoot, J., Makarovsky, O., & Woodward, S. (2023). Bi2Se3 interlayer treatments affecting the Y3Fe5O12 (YIG) platinum spin Seebeck effect. Applied Physics Letters, 123(22), Article 223902. https://doi.org/10.1063/5.0157778

In this work, we present a method to enhance the longitudinal spin Seebeck effect at platinum/yttrium iron garnet (Pt/YIG) interfaces. The introduction of a partial interlayer of bismuth selenide (Bi2Se3, 2.5% surface coverage) interfaces significant... Read More about Bi2Se3 interlayer treatments affecting the Y3Fe5O12 (YIG) platinum spin Seebeck effect.

Conducting poly(3,4-ethylenedioxythiophene) materials with sustainable carrageenan counter-ions and their thermoelectric properties (2023)
Journal Article
Duan, Z., Phillips, J., Liirò-Peluso, L., Woodward, S., Makarovsky, O., Weir, M. P., Pereira, H. J., & Amabilino, D. B. (2023). Conducting poly(3,4-ethylenedioxythiophene) materials with sustainable carrageenan counter-ions and their thermoelectric properties. Materials Advances, 4(22), 5573-5584. https://doi.org/10.1039/d3ma00547j

The preparation and properties of conducting polymers comprising poly(3,4-ethylenedioxythiophene) (PEDOT) and two types of carrageenan – each on their own or combined – as counter-ions are described. The aim of the work is to provide alternative, mor... Read More about Conducting poly(3,4-ethylenedioxythiophene) materials with sustainable carrageenan counter-ions and their thermoelectric properties.

Insights into the kinetics and self-assembly order of small-molecule organic semiconductor/quantum dot blends during blade coating (2023)
Journal Article
Toolan, D. T., Weir, M. P., Wang, S., Dowland, S. A., Zhang, Z., Xiao, J., Rawle, J., Greenham, N., Friend, R. H., Rao, A., Jones, R. A. L., & Ryan, A. J. (2023). Insights into the kinetics and self-assembly order of small-molecule organic semiconductor/quantum dot blends during blade coating. Nanoscale Horizons, 967-1124. https://doi.org/10.1039/d3nh00079f

Organic–inorganic nanocomposite films formed from blends of small-molecule organic semiconductors and colloidal quantum dots are attractive candidates for high efficiency, low-cost solar energy harvesting devices. Understanding and controlling the se... Read More about Insights into the kinetics and self-assembly order of small-molecule organic semiconductor/quantum dot blends during blade coating.

Mixed Small-Molecule Matrices Improve Nanoparticle Dispersibility in Organic Semiconductor-Nanoparticle Films (2023)
Journal Article
Toolan, D. T. W., Weir, M. P., Kilbride, R. C., Anthony, J. E., Greenham, N. C., Friend, R. H., Rao, A., Mykhaylyk, O. O., Jones, R. A. L., & Ryan, A. J. (2023). Mixed Small-Molecule Matrices Improve Nanoparticle Dispersibility in Organic Semiconductor-Nanoparticle Films. Langmuir, 39(13), 4799-4808. https://doi.org/10.1021/acs.langmuir.3c00152

Controlling the dispersibility of nanocrystalline inorganic quantum dots (QDs) within organic semiconductor (OSC):QD nanocomposite films is critical for a wide range of optoelectronic devices. This work demonstrates how small changes to the OSC host... Read More about Mixed Small-Molecule Matrices Improve Nanoparticle Dispersibility in Organic Semiconductor-Nanoparticle Films.

Linking microscale morphologies to localised performance in singlet fission quantum dot photon multiplier thin films (2022)
Journal Article
Toolan, D. T. W., Weir, M. P., Dowland, S., Winkel, J. F., Willmott, J. R., Zhang, Z., Gray, V., Xiao, J., Petty, A. J., Anthony, J. E., Greenham, N. C., Friend, R. H., Rao, A., Jones, R. A., & Ryan, A. J. (2022). Linking microscale morphologies to localised performance in singlet fission quantum dot photon multiplier thin films. Journal of Materials Chemistry C, 10(31), 11192-11198. https://doi.org/10.1039/d2tc00677d

Hybrid small-molecule/quantum dot films have the potential to reduce thermalization losses in single-junction photovoltaics as photon multiplication devices. Here grazing incidence X-ray scattering, optical microscopy and IR fluorescence microscopy (... Read More about Linking microscale morphologies to localised performance in singlet fission quantum dot photon multiplier thin films.

Ultrafast exciton transport at early times in quantum dot solids (2022)
Journal Article
Zhang, Z., Sung, J., Toolan, D. T., Han, S., Pandya, R., Weir, M. P., Xiao, J., Dowland, S., Liu, M., Ryan, A. J., Jones, R. A., Huang, S., & Rao, A. (2022). Ultrafast exciton transport at early times in quantum dot solids. Nature Materials, https://doi.org/10.1038/s41563-022-01204-6

Quantum dot (QD) solids are an emerging platform for developing a range of optoelectronic devices. Thus, understanding exciton dynamics is essential towards developing and optimizing QD devices. Here, using transient absorption microscopy, we reveal... Read More about Ultrafast exciton transport at early times in quantum dot solids.

Insights into the Structure and Self‐Assembly of Organic‐Semiconductor/Quantum‐Dot Blends (2021)
Journal Article
Toolan, D. T. W., Weir, M. P., Allardice, J., Smith, J. A., Dowland, S. A., Winkel, J., Xiao, J., Zhang, Z., Gray, V., Washington, A. L., Petty, A. J., Anthony, J. E., Greenham, N. C., Friend, R. H., Rao, A., Jones, R. A., & Ryan, A. J. (2022). Insights into the Structure and Self‐Assembly of Organic‐Semiconductor/Quantum‐Dot Blends. Advanced Functional Materials, 32(13), Article 2109252. https://doi.org/10.1002/adfm.202109252

Controlling the dispersibility of crystalline inorganic quantum dots (QD) within organic-QD nanocomposite films is critical for a wide range of optoelectronic devices. A promising way to control nanoscale structure in these nanocomposites is via the... Read More about Insights into the Structure and Self‐Assembly of Organic‐Semiconductor/Quantum‐Dot Blends.