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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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Zhang, T.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024A Review of Ising Machines Implemented in Conventional and Emerging Technologiescitations
- 2022Heterostructured stainless steelcitations
- 2022Infrared organic photodetectors employing ultralow bandgap polymer and non-fullerene acceptors for biometric monitoringcitations
- 2022Infrared Organic Photodetectors Employing Ultralow Bandgap Polymer and Non-Fullerene Acceptors for Biometric Monitoringcitations
- 2021Ternary organic photodetectors based on pseudo-binaries nonfullerene-based acceptorscitations
- 2021Linking Glass‐Transition Behavior to Photophysical and Charge Transport Properties of High‐Mobility Conjugated Polymers
- 2020Linking Glass-Transition Behavior to Photophysical and Charge Transport Properties of High-Mobility Conjugated Polymers
- 2016Crack nucleation using combined crystal plasticity modelling, high-resolution digital image correlation and high-resolution electron backscatter diffraction in a superalloy containing non-metallic inclusions under fatiguecitations
- 2016Toughening of carbon fibre reinforced polymer composites with nano rubber for advanced industrial applicationscitations
- 2015Terahertz-infrared spectroscopy of overdoped manganites La.sub.1-x./sub.Ca.sub.x./sub.MnO.sub.3./subcitations
- 2015Improving the fracture toughness and the strength of epoxy using nanomaterials-a review of the current statuscitations
- 2012Modeling the mechanical properties of optimally processed cordierite-mullite-alumina ceramic foams by X-ray computed tomography and finite element analysiscitations
- 2011Context-aware scalable multimedia content delivery platform for heterogeneous mobile devices
- 2010Mechanical properties of rapidly solidified Fe-Al-B ternary alloyscitations
- 2004Block copolymers of vinyl ethers as thermo-responsive colloidal stabilizers of organic pigments in aqueous mediacitations
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article
Linking Glass-Transition Behavior to Photophysical and Charge Transport Properties of High-Mobility Conjugated Polymers
Abstract
The measurement of the mechanical properties of conjugated polymers can reveal highly relevant information linking optoelectronic properties to underlying microstructures and the knowledge of the glass transition temperature ( Tg ) is paramount for informing the choice of processing conditions and for interpreting the thermal stability of devices. In this work, we use dynamical mechanical analysis (DMA) to determine Tg of a range of state-of-the-art conjugated polymers with different degrees of crystallinity that are widely studied for applications in organic field-effect transistors (OFETs). We compare our measured values for Tg to the theoretical value predicted by a recent work based on the concept of effective mobility ζ. The comparison shows that for conjugated polymers with a modest length of the monomer units, the Tg values agree well with theoretical predictions. However, for the near-amorphous, indacenodithiophene–benzothiadiazole (IDT-BT) family of polymers with more extended backbone units, values for Tg appear to be significantly higher predicted by theory. We find instead that values for Tg are correlated with the sub-bandgap optical absorption suggesting the possible role of the interchain short contacts within materials’ amorphous domains.