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.

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 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.

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.

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.

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.

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.

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.

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.

This study focuses on the fabrication and optimization of chemiresistive sensing devices relevant to non-invasive disease monitoring, specifically diabetes.

The three deep ultraviolet transparent borophosphate crystals LiAB₂P₂O₉ (A = NH₄, K) and LiNaB₂P₂O₈(OH)₂·H₂O were synthesized, among which LiAB₂P₂O₉ (A = NH₄, K) demonstrates a moderate second harmonic generation response.

The PCET-induced formation of reconstructed AT aggregates with excellent NIR-light capture as well as efficient charge separation, enabling highly efficient hydrogen production with NIR light.

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

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.

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

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.

The dramatic effect of protonation on the optoelectronic properties of triphenodioxazine diimides is studied for the first time.

A collaborative synthesis and computational approach is used to decipher confined carbon–sulfur rotational distribution in a crystalline host for enhanced red persistent phosphorescence.

B and Te co-doped samples of Mg_3.2B_ySbBi_1−xTe_x achieved the lowest κ − κ_E of ∼0.49 W m⁻¹ K⁻¹ and a maximum zT of ∼1.54.

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.

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

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

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.

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.

Carbon polymer dots (CPDs) have favourable properties such as broad spectral absorption, strong photoluminescence, low toxicity, and high specific surface area.

In this work, a novel low melting temperature solid additive CB8-Br was designed and synthesized through a simple and reliable method, and a superior PCE of 18.12% with excellent device stability was obtained in CB8-Br-processed devices.

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 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.

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 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.

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.

Organic solar cells (OSCs) represent a promising technology in the renewable energy sector, with non-fused small molecular acceptors (SMAs) emerging as efficient alternatives to traditional fused counterparts.

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.

Mechanism schematic of the EM wave absorption and thermal conduction of composites.

An effective approach to optimizing the luminous performance of AlGaN-based DUV LEDs is demonstrated using machine learning. A CNN model predicts LOPD with high accuracy, revealing key features that influence LED performance.

The co-solvent system comprising O-XY and DIO has regulated the J-aggregation of donors and acceptors, thereby optimizing their phase separation, leading to efficient organic optoelectronic devices.

A green hyper OLED with CIE (0.31, 0.66), 159.9 lm W⁻¹, and LT_95/90 lifetimes of 600/2400 hours at 1000 cd m⁻² was developed by preventing carrier trapping with MR-TADF emitter at hole-transporter/emission layer interface.

Naphthalene diimide covalent-organic framework are introduced as a novel solid-state superprotonic conduction electrolyte, demonstrating an expanded electrochemical stability window and stable cycling performance in proton batteries.

This study develops chiral Eu(NTA)₃(BINAPO) complexes as X-ray scintillators with unique circularly polarized luminescence and imaging potential, advancing X-ray-activated enantioselective photocatalysis for diverse environmental applications.

Lu-MOFs with formic acid as the sole ligand were synthesized by a formamide hydrolysis reaction. The luminescence color and intensity of Lu–Eu-MOFs-bipy can be controlled by the energy competition and transfer between 4,4′-bipyridine and Eu³⁺.

BOBTFB, a blue fluorescent emitter has been synthesized, and used as an exciplex accepter which is combined with different donors (TCTA, TAPC, m-MTDATA) to produce emission of different colors (blue, green, yellow, white).

Bi₃O₄Br:Yb³⁺,Er³⁺ (BYE-OV) nanosheets generate more oxygen vacancies under UV irradiation, causing the color to change from light yellow to brown-black. At the same time, the generated intermediate energy levels enhance upconversion luminescence.

A new Ca₂YScAl₂Si₂O₁₂:Cr³⁺ PiGF was synthesized using rapid infrared firing, highlighting luminous output of 2626 mW under blue laser excitation, for near-infrared lighting applications in nondestructive detection, night vision and bioimaging.

A two-dimensional zinc-based MOF (ZHPCA) was synthesized and employed as the interface modification layer of Zn anode, and the N-functional groups in ZHPCA can be used as binding sites for zinc ion deposition.

The CSAS method can increase the density of the ceramics and reduce the volatilization of the A-site elements, thus changing the phase structure of the ceramics and making them high piezoelectric properties.

Heavy fermion characteristics and potential superconductivity are observed in the partially vacancy-ordered Y₄Fe_xGe₈.

Self-activated zinc germanates show ternary persistent luminescence of blue, green, and near-infrared light, which are linked with native defects. Aliovalent Al³⁺-doped zinc germanates achieve new yellow emission and enhanced afterglow.

Superior triplet harvesting properties of TMCz-BO emitter are analyzed in liquid and solid media. The notions of dynamic and static excited-state mixing are introduced to explain dual and triple nature of S₁ and T₁ states as well as TADF mechanism.