| People | Locations | Statistics |
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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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Marder, Seth R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2023Additive-free molecular acceptor organic solar cells processed from a biorenewable solvent approaching 15% efficiencycitations
- 2022Controlled n‐Doping of Naphthalene‐Diimide‐Based 2D Polymerscitations
- 2022Visualisation of individual dopants in a conjugated polymer : sub-nanometre 3D spatial distribution and correlation with electrical propertiescitations
- 2022Double Doping of a Low-Ionization-Energy Polythiophene with a Molybdenum Dithiolene Complexcitations
- 2020Ruthenium pentamethylcyclopentadienyl mesitylene dimer: a sublimable n-dopant and electron buffer layer for efficient n-i-p perovskite solar cellscitations
- 2019Enhanced Thermoelectric Power Factor of Tensile Drawn Poly(3-hexylthiophene)citations
- 2019Interfacial charge-transfer doping of metal halide perovskites for high performance photovoltaicscitations
- 2017Absorption Tails of Donor:C-60 Blends Provide Insight into Thermally Activated Charge-Transfer Processes and Polaron Relaxationcitations
- 2017Molecular weight tuning of low bandgap polymers by continuous flow chemistry: increasing the applicability of PffBT4T for organic photovoltaicscitations
- 2016Phosphonic Acids for Interfacial Engineering of Transparent Conductive Oxidescitations
- 2016An Introduction to the Electronic Structure of π-Conjugated Molecules and Polymers, and to the Concept of Electronic Bands
- 2015Mechanism that governs the electro-optic response of second-order nonlinear polymers on silicon substratescitations
- 2013Physical mixtures of small-molecule and polymeric organic semiconductorscitations
- 2012Surface-initiated synthesis of poly(3-methylthiophene) from indium tin oxide and its electrochemical propertiescitations
- 2009Direct writing and characterization of poly(p -phenylene vinylene) nanostructurescitations
- 2008Reversible nanoscale local wettability modifications by thermochemical nanolithography
- 2007Analysis of improved photovoltaic properties of pentacene/C60 organic solar cellscitations
- 2007Norbornene-based copolymers with iridium complexes and bis(carbazolyl) fluorene groups in their side-chains and their use in light-emitting diodescitations
- 2007High-speed, sub-15 nm feature size thermochemical nanolithographycitations
- 2000Two-photon fluorescent labels with enhanced sensitivity for biological imaging
Places of action
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article
Physical mixtures of small-molecule and polymeric organic semiconductors
Abstract
<p>Physical mixtures of organic semiconductors are increasingly used for the development of new materials in thin film, organic electronic applications and their electronic properties are strongly affected by their morphology. Here, we report on studies of blends of an electron-donating small molecule, BTD-DTP, with the electron-acceptor polymer PNDI-2T and the correlations between their thermal behaviour, intermixing and thin film structure. A significant depression of the PNDI-2T melting point (ΔT = 111 °C) is observed upon increasing the small molecule content. Grazing incidence X-ray scattering (GIXS) and scanning probe microscopy (SPM) of thin films of varying composition show an increase in the small molecule crystalline phase and reduction in the crystallite orientation distribution, as the small molecule to polymer ratio reaches ∼50 : 50 wt. The domain sizes of the small molecule and polymer crystalline phases reach a minimum at the 50 : 50 wt ratio as well, suggesting the formation of the phases leads to mutual limitation of their crystalline domain size. Comparison of the bulk and thin film properties shows a divergence in behaviour of the small molecule, which in the bulk exhibits only a monotonic decrease in melting point with addition of polymer, but which has an increase in crystallinity, from 20 to 50 wt% PNDI-2T content.</p>