| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
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
| Organizations | Location | People |
|---|
article
Controlled n‐Doping of Naphthalene‐Diimide‐Based 2D Polymers
Abstract
<jats:title>Abstract</jats:title><jats:p>2D polymers (2DPs) are promising as structurally well‐defined, permanently porous, organic semiconductors. However, 2DPs are nearly always isolated as closed shell organic species with limited charge carriers, which leads to low bulk conductivities. Here, the bulk conductivity of two naphthalene diimide (NDI)‐containing 2DP semiconductors is enhanced by controllably n‐doping the NDI units using cobaltocene (CoCp<jats:sub>2</jats:sub>). Optical and transient microwave spectroscopy reveal that both as‐prepared NDI‐containing 2DPs are semiconducting with sub‐2 eV optical bandgaps and photoexcited charge‐carrier lifetimes of tens of nanoseconds. Following reduction with CoCp<jats:sub>2</jats:sub>, both 2DPs largely retain their periodic structures and exhibit optical and electron‐spin resonance spectroscopic features consistent with the presence of NDI‐radical anions. While the native NDI‐based 2DPs are electronically insulating, maximum bulk conductivities of >10<jats:sup>−4 </jats:sup>S cm<jats:sup>−1</jats:sup> are achieved by substoichiometric levels of n‐doping. Density functional theory calculations show that the strongest electronic couplings in these 2DPs exist in the out‐of‐plane (π‐stacking) crystallographic directions, which indicates that cross‐plane electronic transport through NDI stacks is primarily responsible for the observed electronic conductivity. Taken together, the controlled molecular doping is a useful approach to access structurally well‐defined, paramagnetic, 2DP n‐type semiconductors with measurable bulk electronic conductivities of interest for electronic or spintronic devices.</jats:p>