Themed collection Emerging Organic Electronics

Zuo-Quan Jiang, Cyril Poriel and Nicolas Leclerc introduce the Materials Chemistry Frontiers themed collection on emerging organic electronics.

Recent advances and perspectives in all aspects of the elaboration of OPV devices from nanoparticle dispersions are reviewed.

The structural complexity of polymer semiconductors can be revealed by electron diffraction in a TEM on highly oriented and crystalline thin films.

New alkali metal ion sensors showing ratiometric colourimetric and fluorimetric responses with high selectivity and low limits of detection.

The development of new aqueous conjugated polymer nanoparticles with high photoluminescence quantum yields (PLQYs) at the far red and near infrared (NIR) spectral regions (>650 nm) as alternative polymer probes for fluorescence imaging is reported.

Spray-coated highly conductive PEDOT material proves efficient for the fabrication of printed thermoelectric generators.

The Pb–I–Pb bond angle in 2D A₂PbI₄ perovskites, previously shown to be correlated to the exciton energy, can be tuned by changing the width of the organic A cation, at least within a limited series of compounds.

AIE-active organic intelligent luminescent materials exhibit both multicolor tunable and high-contrast beyond 100 nm mechanochromism and acidochromism.

Optimized synthesis of fDT-DPP and related 3-fluorothiophene comonomers and application in highly fluorinated polymers obtained via direct heteroarylation polymerization.

Three triazatruxene-based donors Tr-Me, Tr-Ph, and Tr-Tol were intermixed with three acceptors 3P-T2T, 3P-T2P, and 3P-Pyr equipping with different heteroarene cores to generate an array of nine blends to probe the feasibility of exciplex formation.

A green multiple resonance thermally activated delayed fluorescence (MR-TADF) emitter, DDiKTa, is developed by a simple dimerization strategy of the known MR-TADF emitter DiKTa.

We report a remarkable reversible mechanofluorochromism due to the stimulated swinging of a silole core between its triptycene side-groups.

A high performance green exciplex OLED comprising a novel electron donor DEX with an acceptor PO-T2T can reach an EQE_max of 11.2%, and a red phosphorescent OLED incorporating the green exciplex forming co-host achieves an EQE_max of 24.5%.

We report the synthesis and characterization of the first non-fullerene acceptor containing a boron difluoride formazanate core end-capped with N-annulated perylene diimides.

The dipole moment of FREAs’ terminals has been unveiled as an important factor and its working mechanism has been thoroughly investigated. Our results demonstrate that the dipole moment should also be taken into account in designing ternary OSCs.

A novel green emissive material embedded in a resin provides efficient down-conversion in a hybrid LED.

Less fluorination, better performance! Devices based on DI3T-1F:PC₇₁BM and DI3T-2F:PC₇₁BM are fabricated for thick-film small molecule-solar cells (SMSCs). Indeed, the devices based on DI3T-1F the devices based on DI3T-1F show a better tolerance to thickness, giving PCE of 8.33% with ∼150 nm, and 5.43% with ∼300 nm, which are 14% and 50% higher than those of DI3T-2F, respectively.