Themed collection 2019 Materials Chemistry Frontiers HOT articles

CD@zeolite composites with tunable TADF emission via an energy transfer process between confined CDs.

A three-dimensional framework with two-dimensional channels (UPC-50) is obtained. The stable UPC-50 is a multi-functional material for the rapid removal of Cr₂O₇²⁻, efficient gas adsorption/separation, and catalytic performance.

The preparation of AIE nanoparticles under thin film formation controls their size and the associated fluorescent intensity, with the smaller nanoparticles significantly increasing brightness.

Mechanistic studies on the controlled conversion of silver chlorobromide nanocubes into silver-based hollow nanostructures through chemical transformations.

A multifunctional conductive hydrogel with controllable adhesiveness, high strechability and excellent biocompatibility based on PDAEA, clay, and PNIPAM.

We report a highly fluorescent difluoroboron β-diketonate derivative 1 which shows four emission colors (green, yellow, orange and red) with high quantum yields (41–74%) in four polymorphs and one amorphous state.

Self-assembled binary multichromophore dendrimers HDSD–FDSD have been developed to increase the poling efficiency, refractive Index and stability of the EO materials.

Mechanofluorescent polymer/silsesquioxane composites were prepared by introducing tetraarylsuccinonitrile derivatives, which are mechanically cleaved to generate the corresponding pink carbon-centred radicals that exhibit yellow fluorescence.

An ultra-wide bandgap copolymer donor based on a phenanthridin-6(5H)-one unit offered an 8.54% PCE in nonfullerene organic solar cells.

A unique 2D structure of Ti₃C₂/TiO₂/1T-MoS₂ composite with double metallic co-catalysts Ti₃C₂ and 1T phase MoS₂ nanopatches is achieved and it exhibits high photocatalytic H₂ evolution activity with a rate as high as 9738 μmol g⁻¹ h⁻¹.

A push–pull perylene dye shows solvent dependent diradical character and negative solvatochromism.

AIEgens TPB-AC and CP-BP-PXZ are used as non-doped blue and green layers, and Ir(dmppr-mp)₂(divm) doped TCTA is used as red layer to construct high-performance hybrid WOLEDs.

Carbonized polymer dots (CPDs) are introduced into TiO₂ photonic crystals (PCs) to form CPD/PC heterostructures, which show enhanced light harvesting and charge separation and thus promoted photocatalytic performance.

Development of affordable, simple and effective methods for rapid on-site identification of genetically modified organisms (GMO) is urgent due to public concern for transgenic food.

A facile copper surface doping process is proposed to enhance the surface structural stability of manganese-rich layered oxide cathodes.

The conversion between normal emission and ESIPT can be successfully achieved under pressure and temperature.

A novel blue-emitting phosphor is synthesized, and its luminescence properties and potential application for WLEDs and FEDs are explored.

With precise control of reaction conditions, it is possible to accelerate the oxygen evolution kinetics through optimization of adsorption/dissociation equilibrium.

A tunable CPL response is achieved through regulating the aggregated structures of AIEgens in solution and solid states. Interestingly, DPCE-ECh exhibits a smectic C* phase with a high dissymmetry factor (g_CD = −0.20 and g_lum = +0.38).

Li₄Ti₅O₁₂ quantum dots anchored on 3D carbon frameworks from carbon dots were designed and exhibited superior electrochemical lithium storage performance.

We present a universal ethanolic one-step approach to noble/less noble metal aerogels at room temperature and −70 °C.

Cu-TCPP nanosheets exhibit a high density of active sites and low diffusion barriers for styrene epoxidation.

The pressure-induced phase transition of diphenylfluorenone leads to a drastic redshift of the photoluminescence spectra from greenish-yellow to the near-infrared region.

An AIEgen-grafted copolymer P(NIPAM-co-EM) is successfully constructed with thermo-responsive LCST-featuring matrix PNIPAM for temperature detection.

Two types of MOFs from the same linkers were selected as precursors to obtain Co₃O₄ nanomaterials. The structure and component evolution in the pyrolysis process were analyzed to illustrate the structure–activity relationship for the design of Co₃O₄-based anode materials for lithium-ion batteries.

A hydroxycamptothecin prodrug is developed, which can self-report the drug distribution and achieve self-synergistic anticancer efficacy through oxidation therapy.

The microscopic mechanism of pseudocapacitance with electronic structures in monolayer 1T-MoS₂ and the pseudocapacitance manipulation by defects have been elucidated.

The cationic aluminum species generated from AlⁱBu₃ and the activator [Ph₃C][B(C₆F₅)₄] serves as the first example of a main group organometallic catalyst for the coordination-insertion (co)polymerization of aryl isocyanides.

Heavy atom free NDNT have a great potential for prostate cancer therapy both in vitro and in vivo.

Five red iridium(III) complexes with dithiocarbamate ligands were investigated, and their OLEDs exhibit an EQE_max of 20.69% with low efficiency roll-off.

An antibacterial supramolecular polymer is developed that exhibits enhanced antibacterial efficacy and controlled degradability.

Ultrafine Pd nanoparticles with less than 0.12 at% are electrodeposited on nickel foam supported NiFe LDH to obtain improved intrinsic activity, more active sites, and enhanced charge transfer for improved bifunctionality towards overall water splitting.

High-performance blue OLEDs were obtained based on ETMs with a “V-shaped layout of E_Ts” strategy.

GDY/CuS heterostructure electrocatalyst for efficient hydrogen evolution reaction.

Hypersound (ultrasound of gigahertz (GHz) frequency) has been recently introduced as a new type of membrane-disruption method for cells, vesicles and supported lipid bilayers (SLBs), with the potential to improve the efficiency of drug and gene delivery for biomedical applications.

Multifunctional phototheranostics were successfully constructed for NIR-II fluorescence/photoacoustic dual-modal imaging and simultaneous photodynamic/photothermal combination therapy.

We have fabricated Janus nanoparticles based on black phosphorus quantum dots and metal–organic particles for PDT enhancement.

We report the optimisation of a semi-transparent solar cell based on a blend of a recently reported high performance donor polymer (PFBDB-T) with a non-fullerene acceptor derivative (C8-ITIC).

Alkoxythiophene and alkylthiothiophene π-bridges were introduced to A–D–A electron acceptors to improve photovoltaic performance.

High dielectric contrast polymer dielectric mirrors are used to recycle non-absorbed photons in organic luminescent solar concentrators. A 10% increase in the concentrator optical efficiency is found and retained upon doubling its size paving the way to lightweight and cheap building integrated photovoltaic systems.

Development of a hydrogen-generating system based on chemical hardness. Application to H₂ generation and scavenging of reactive oxygen-species (ROS) by efficient water splitting using Laves phase CaMg₂.

3D hollow reduced graphene oxide foam as host for prestring lithium for high capacity lithium metal anode.