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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Toolan, Daniel T. W.
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Mixed Small-Molecule Matrices Improve Nanoparticle Dispersibility in Organic Semiconductor-Nanoparticle Filmscitations
- 2023Insights into the kinetics and self-assembly order of small-molecule organic semiconductor/quantum dot blends during blade coatingcitations
- 2022Insights into the Structure and Self‐Assembly of Organic‐Semiconductor/Quantum‐Dot Blendscitations
- 2022Insights into the structure and self‐assembly of organic‐semiconductor/quantum‐dot blendscitations
- 2020Controlling the structures of organic semiconductor–quantum dot nanocomposites through ligand shell chemistrycitations
- 2014In situ studies of spin-coated polymer films
- 2014Stroboscopic microscopy - Direct imaging of structure development and phase separation during spin-coatingcitations
- 2013Direct observation of morphological development during the spin-coating of polystyrene-poly(methyl methacrylate) polymer blendscitations
- 2013Development of in situ studies of spin coated polymer filmscitations
- 2013In situ studies of phase separation and crystallization directed by Marangoni instabilities during spin-coatingcitations
- 2013Directed phase separation of PFOcitations
Places of action
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article
Insights into the kinetics and self-assembly order of small-molecule organic semiconductor/quantum dot blends during blade coating
Abstract
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 self-assembly of the resulting organic–inorganic nanocomposite films is crucial in optimising device performance, not only at a lab-scale but for large-scale, high-throughput printing and coating methods. Here, in situ grazing incidence X-ray scattering (GIXS) gives direct insights into how small-molecule organic semiconductors and colloidal quantum dots self-assemble during blade coating. Results show that for two blends separated only by a small difference in the structure of the small molecule forming the organic phase, crystallisation may proceed down two distinct routes. It either occurs spontaneously or is mediated by the formation of quantum dot aggregates. Irrespective of the initial crystallisation route, the small-molecule crystallisation acts to exclude the quantum dot inclusions from the growing crystalline matrix phase. These results provide important fundamental understanding of structure formation in nanocomposite films of organic small molecules and colloidal quantum dots prepared via solution processing routes. It highlights the fundamental difference to structural evolution which can be made by seemingly small changes in system composition. It provides routes for the structural design and optimisation of solution-processed nanocomposites that are compatible with the large-scale deposition manufacturing techniques that are crucial in driving their wider adoption in energy harvesting applications.