Themed collection Journal of Materials Chemistry C HOT Papers

Absorption spectra of photoreceptor pigments together with corresponding activators for plant growth LEDs.

This review systematically summarized the synthesis approaches towards both polycrystals and nanocrystals, and discussed the crystal/electronic structure, luminescence principle, and optimized strategies of lanthanide-based Cs₃LnCl₆ metal halides.

A new non-fullerene acceptor, CH-TCl, introduced as the third component, optimizes the active layer morphology, enhances charge transfer, and increases the open-circuit voltage of organic solar cells.

An in situ integrated method is used to measure the thermoelectric performance of Bi₂Se₃ thin films. The coupling mechanism between thermal rectification effect caused by structural regulation and thermoelectric parameter is tentatively explored.

Reservoir computing (RC) using a Pt/Gd-doped CeO₂/CeO₂/Pt memristor is systematically investigated, where its time-dependent weight updates and nonlinear decay characteristics are critical for extracting spatiotemporal features in RC applications.

Hg₂(SeO₃)(TeO₃), a new tellurite–selenite birefringent crystal, showcases a broad transparency range, large birefringence, and high thermal stability, positioning it as a promising birefringent material.

The discovery of the novel Gd₃Co_1+xNi_1−x compound is reported. It is shown that the magnetocaloric properties are among the best in its working temperature range and Co/Ni substitution tunes the working temperature without compromising performance.

A triboelectric nanogenerator based on the CAU-10-(SO₃H)₀.₀₈(OH)₀.₉₂/PVC composite film, exhibiting excellent moisture resistance and cycle stability, was designed and successfully applied to water electrolysis for hydrogen production.

Al₁₁Ce₃ intermetallics with porous network structures are fabricated, which present excellent adsorption and catalytic properties for polysulfide conversion, and show stable electrochemical properties as sulfur host networks for Li–S batteries.

Flexible conductive elastomer materials are promising for applications in wearable, flexible sensor devices, human motion monitoring, and other fields.

A surface cooling strategy was adopted, which suppresses Sn loss and facilitates Se diffusion during the selenization process, thereby optimizing the metal element distribution and photovoltaic performance of the CZTSSe absorbers.

Use of an o-F-PEABr ligand containing an intramolecular hydrogen bond can effectively suppress low-n phases in quasi-2D perovskites. The resultant light-emitting diodes achieve a maximum efficiency of 7.55% and a pure blue emission at 475 nm.

Bi₂OS₂ and Bi₃O₂S₂Cl epitaxial thin films with strong spin–orbit interaction were selectively synthesized by mist chemical vapor deposition.

By adjusting the stoichiometric ratio of the CISe core and doping with Zn²⁺, highly efficient PLQY, near-infrared and environmentally friendly CISe QDs have been successfully synthesized.

The Fe₄₉Rh₅₁ bulk alloy exhibits a sharp FOPT from the AFM to FM state around 332 K, with a volume change of 0.8%. A kinetic arrest of the AFM phase is evidenced up to 70 K above the FOPT temperature by neutron diffraction experiments.

The machine learning technique is promoted to accelerate the development of high-performance AgNbO₃-based AFE ceramics. Guided by the predicted values, a high W_rec of 7.0 J cm⁻³ is achieved experimentally.

The trans-3 tris-addition endohedral nitrogen fullerene derivatives with transversal stretching, microsecond-scale quantum coherence time, and addressable energy levels were synthesized, offering a scalable approach for future 2D spin assemblies.

A series of color-tunable Sr₃Ga_1−xGe_xO_4+xF_1−x:1%Bi³⁺ oxyfluoride phosphors have been designed by chemical unit co-substitution for applying in the multi-level anti-counterfeiting field.

Electrolyte-gated transistors (EGTs) with organic polymer electrolytes are promising candidates for wearable bioelectronic devices, owing to their inherent flexibility and biocompatibility.

The energy transfer between IDIC and Y6 improves the photoluminescence quenching efficiency and promotes effective charge transport/extraction within the ternary blend, resulting in a PCE of 19.67% for the ternary organic solar cell.

Natural cellulose exhibits exceptional water resistance and interfacial compatibility, optimizing organic/inorganic interfaces to improve the stability of all-polymer solar cells.

Organic crystals integrate multicolor emissions from semiconductor quantum dots via a modular assembly approach. This modular strategy merges the advantages of quantum dots and organic crystals for versatile photonics.

Hollow particle-integrated Co-ZIF-HPT-700 nanotube composites reach RL_min values of −76.93 dB at 8.96 GHz (10 wt% filling). Tuned thickness enables full-band absorption in the X and Ku bands, demonstrating superior microwave absorption potential.

The temperature of the thermosalient phase transition can be tuned within a range of 15 °C by varying the TBB content by 8% in the molecular TBB–TCB alloys.

The biomass sauce-flavor liquor lees-derived carbon cathodes are specially designed for aqueous zinc-ion hybrid supercapacitors. And which achieved a high specific capacity (221.1 mA h g⁻¹), a high energy density (160.9 W h kg⁻¹) and remarkable durability.

Ligand engineering was employed to enhance charge transfer at graphene/PbS interfaces, boosting carrier transfer efficiency and photodetector detectivity.

OIMHs incorporating NDI cations exhibit flexible deformation under stress and function as mechanochromic and photothermal conversion materials, demonstrating their soft and multifunctional nature.

Solution-processable copper halides heal structural defects associated with SCN⁻ vacancies in CuSCN, restoring the coordination environment around Cu(I) and enhancing hole transport properties.

A rose bengal intercalated layered double hydroxide composite photocatalyst demonstrates excellent catalytic activity in heterogeneous flow chemistry to achieve a very rapid organic synthesis under visible-light irradiation powered by LEDs.

Simple polymer Po2F composed of non-fused rings of o-difluorobenzene-quarterthiophene possesses low synthetic complexity and affords OSC devices with a notable efficiency of 15.45%.

An innovative chemical formula of Cu_1.8S_1−xP_x was proposed to tune the Cu–to–S ratio while enhancing both thermoelectric and mechanical properties by mixed phase engineering.

A threshold switching device with a NbSe₂/Nb₂O₅ functional layer was made by oxidizing 2D NbSe₂. Leveraging Nb₂O₅'s high resistivity and NbSe₂'s blocking effect on Ag ion diffusion, the device achieves low power and high endurance.

Finding the right combination of conditions to synthesize and characterize new semiconducting superatomic crystals requires strategy, perseverance, and a little bit of luck.

A ratiometric luminescent nanothermometer with high sensitivity is developed with Er³⁺-sensitized upconversion emission of Tm³⁺via Yb³⁺-mediated energy migration.

SnO₂-supported Pd single atoms coupled with small cluster structures, incorporated into sensing platforms, exhibit exceptional performance and selectivity toward CO.

Phosphorus-rich InAsP nanowires are grown on silicon via molecular beam epitaxy. Nanowires demonstrate room temperature photoluminescence at wavelengths as short as 1480 nm which is promising for optical communication and biomedical imaging.

A capacitive memory with a pPFPA_x-co-SP_y dielectric layer achieves an eight-level storage capability, ultra-low power consumption of 1.91 × 10⁻¹⁰ W, and multilevel data encryption, showcasing vast potentials in smart electronics.

The rigid O-bridged triphenylborane is used for developing thermally activated delayed fluorescent Pd(II) complexes by combining the concepts of metal-perturbed intraligand charge transfer excited states and intramolecular noncovalent interactions.

Narrowband emissive fluorophores are designed and synthesized by combining multiple-resonance chromophore and anthracene units, which also exhibit capability to rapidly convert triplet excitons into singlet excitons via high-lying reverse intersystem crossing.

A novel palladium catalyst-free synthesis of highly soluble terrylenes, employed in OFET and OPT devices for the first time achieving high mobility and high photoresponsive metrics.

We combine macroscopic quantum electrodynamics theory with open quantum systems theory, to calculate the transient radiation of molecules arranged in the nanocavity created with a scanning tunnelling microscope.

By PDMS-assisted colloidal lithography, high-aspect-ratio microstructures were employed as the structure for the successful fabrication of broadband near-perfect optical absorbers.

The modification of carbon nanotube (CNT) films is of great significance for improving their performance and expanding their applications.

Artificial synapses capable of neuromorphic computation are crucial for improving the processing efficiency of existing information technologies.

Through bidirectional design of heterogeneous interface construction and defect engineering, a high W_rec of 83.6 J cm⁻³ and efficiency of 74.1% are achieved for the 2 mol% Fe-doped 0.8NBT–0.2BLT film.

A graphene-based polarization insensitive tunable terahertz absorber achieving eight distinct absorption peaks across 3.9–9.73 THz with 99.3% average absorption for advanced THz applications.

Thermoelectric materials have drawn attention due to their capability of directly converting heat and electricity, which helps utilize waste heat and provides an alternative energy source.

A kind of separator with excellent pore structure and flame retardancy was prepared by a single-side coating method. A synchronous improvement in safety performance and high electrochemical performance was realized.

Boosted adsorption and degradation of organic pollutants based on self-supported flexible metal–organic framework arrays.

We present the first known room-temperature LC DTCP derivatives, where non-planar molecular interactions drive LC phase formation, enabling photochromic response, fast switching, and tunable optical properties.

A rapid 2D co-assembly creates chiral hybrid materials by templating gold nanorods (GNRs) with poly(phenylacetylene) (PPA) nanosheets. GNRs quickly form precise chiral arrangements with strong plasmonic dichroism and PPAs possess enhanced CPL.

A facile approach enables multi-stimuli-responsive and steady-state color-tunable luminescence in UOP materials by regulating multimode emissions, allowing direct visualization-based applications in multicolor patterning and visual monitoring system.

The performance of an NH₃ sensor featuring MAPbBr₃ as the luminescent core is enhanced with the introduction of an AIE material through FRET and defect passivation, enabling this nanofiber-based NH₃ sensor to achieve high sensitivity and stability.

Optimizing the vertical component distribution, aggregation and molecular stacking of the donor and acceptor is an effective strategy to boost the power conversion efficiency (PCE) of all-polymer solar cells (all-PSCs).

The impact of side chains on the memory performance of charge-trapping layers in 2D polymer thin films with identical backbones but differing side chains was investigated.

Nanocomposites consisting of citrate-passivated silver nanoprisms anchored electrostatically and covalently on graphene oxide sheets were produced. The formed hybrid nanocomposites exhibit enhanced nonlinear optical properties.

The far-field light scattering and near-field enhancement of Ag nanoparticles synergistically facilitate a remarkable improvement in absorption in Cs₂AgBiBr₆ lead-free double perovskite solar cells.

Non-halogenated solvent additives were employed to boost the crystallinity of the active layer and optimize donor–acceptor phase separation, thereby realizing efficient all-polymer organic solar cells.

Flexible humidity sensors based on a GO/WS₂ composite were realized with a high sensitivity of 1.68%/%RH and fast response/recovery times (11.3 s/12.4 s), which were successfully applied for human breath detection and fingertip proximity detection.

The harmful P2-Z phase transition in the Fe/Mn-based layered oxide has been completely eliminated through Ti doping, which reduces the amount of Fe⁴⁺O₆ and suppresses the migration of Fe ions.