| 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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Green, Mark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2022Conformational Heterogeneity and Interchain Percolation Revealed in an Amorphous Conjugated Polymercitations
- 2022Conformational Heterogeneity and Interchain Percolation Revealed in an Amorphous Conjugated Polymercitations
- 2021Investigating conjugated polymer nanoparticle formulations for lateral flow immunoassayscitations
- 2020High bond strength Cu joints fabricated by rapid and pressureless in situ reduction-sintering of Cu nanoparticlescitations
- 2019Anisotropic Plasmonic CuS Nanocrystals as a Natural Electronic Material with Hyperbolic Optical Dispersioncitations
- 2017Post-polymerization C–H Borylation of Donor–Acceptor Materials Gives Highly Efficient Solid State Near-Infrared Emitters for Near-IR-OLEDs and Effective Biological Imagingcitations
- 2015One-pot aqueous synthesis of highly strained CdTe/CdS/ZnS nanocrystals and their interactions with cells
- 2014One-pot aqueous synthesis of highly strained CdTe/CdS/ZnS nanocrystals and their interactions with cells
- 2013Electronics Assembly and High Temperature Reliability Using Sn-3.8Ag-0.7Cu Solder Paste With Zn Additivescitations
- 2012Massive spalling of Cu-Zn and Cu-Al intermetallic compounds at the interface between solders and Cu substrate during liquid state reactioncitations
- 2012Intermetallic compound growth suppression at high temperature in SAC solders with Zn addition on Cu and Ni-P substratescitations
- 2011Bond strength of CFRP and steel bars in concrete at elevated temperature
- 2010Reactions of Sn-3.5Ag-Based Solders Containing Zn and Al Additions on Cu and Ni(P) Substrates citations
- 2008Electrical behavior of memory devices based on fluorene-containing organic thin filmscitations
- 2004Self propagating high temperature synthesis of magnesium zinc ferrites (MgxZn1-xFe2O3): Thermal imaging and time resolved X-ray diffraction experimentscitations
Places of action
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article
Post-polymerization C–H Borylation of Donor–Acceptor Materials Gives Highly Efficient Solid State Near-Infrared Emitters for Near-IR-OLEDs and Effective Biological Imaging
Abstract
Post-polymerization modification of the donor–acceptor polymer, poly(9,9-dioctylfluorene-alt-benzothiadiazole), PF8-BT, by electrophilic C–H borylation is a simple method to introduce controllable quantities of near-infrared (near-IR) emitting chromophore units into the backbone of a conjugated polymer. The highly stable borylated unit possesses a significantly lower LUMO energy than the pristine polymer resulting in a reduction in the band gap of the polymer by up to 0.63 eV and a red shift in emission of more than 150 nm. Extensively borylated polymers absorb strongly in the deep red/near-IR and are highly emissive in the near-IR region of the spectrum in solution and solid state. Photoluminescence quantum yield (PLQY) values are extremely high in the solid state for materials with emission maxima ≥ 700 nm with PLQY values of 44% at 700 nm and 11% at 757 nm for PF8-BT with different borylation levels. This high brightness enables efficient solution processed near-IR emitting OLEDs to be fabricated and highly emissive borylated polymer loaded conjugated polymer nanoparticles (CPNPs) to be prepared. The latter are bright, photostable, low toxicity bioimaging agents that in phantom mouse studies show higher signal to background ratios for emission at 820 nm than the ubiquitous near-IR emissive bioimaging agent indocyanine green. This methodology represents a general approach for the post-polymerization functionalization of donor–acceptor polymers to reduce the band gap as confirmed by the C–H borylation of poly((9,9-dioctylfluorene)-2,7-diyl-alt-[4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole]-2c,2cc-diyl) (PF8TBT) resulting in a red shift in emission of >150 nm, thereby shifting the emission maximum to 810 nm.