Themed collection Journal of Materials Chemistry C HOT Papers

To break the limitations of traditional molecular materials in electronic devices, especially in organic field-effect transistors (OFETs), developing monolayer molecular crystals (MMCs) with the ultimate thickness is crucial.

The composition and microstructure control of Sm₂Fe₁₇N₃ powders lays the foundation for the enhancement of magnetic properties, which is mainly ascribed to the optimization of the intrinsic magnetic properties and domain structure.

This review explores recent advancements in Electrohydrodynamic (EHD) deposition techniques for the fabrication of organic thin-film transistors, highlighting their impact on device performance and potential applications.

This review provides recent advances in flexible iontronic pressure sensors including strategies to enhance sensing performances and their applications and discusses future directions for implementing these advancements in practical applications.

Wound infection has always been a huge threat to human health.

We here discuss the development of inorganic and organic superconductors having a structural chirality.

Flexible electronics has been widely recognized as the future of electronics for a broad range of applications, which is also the foundation for wearable devices that can go or even seamlessly integrate with the human skin.

The research progress of Ce³⁺/Eu²⁺ doped phosphors that can be excited by violet light, including the structural models, composition regulation, and spectral tuning, is summarized.

This article provides a comprehensive review of chiral quantum dots used for bioapplications. The chiral mechanisms, g factor and some bioapplications are also discussed.

We summarize the molecular design of photoresponsive liquid-crystalline polymers, manipulation at multiple scales and various applications based on their intrinsic properties, providing an opportunity for future development in this field.

In optical systems for communication, sensing, and imaging, integrating optoelectronic and electronic components on-chip to develop optoelectronic applications has become the focus of future research.

Carbazole–cyanostilbene conjugates exhibit promising optical properties, including AIE and MFC. This review explores their diverse applications across various fields, highlighting their unique characteristics and potential impact.

Substituents at peripheral cyclopenta-fused polycyclic aromatic hydrocarbons are important to regulate the anti-aromaticity, energy levels and charge transport polarity.

A new strategy to disclose the relationship between π–π stacking without exogenous ICT and photophysical properties was propounded through the construction of smart piezochromic materials with a discrete π–π dimer and high-pressure technique.

We demonstrate online and offline learning as well as associative learning such as in Pavlov's dog experiments using the non-volatile and volatile properties of HfSiO_x-based FTJs.

Two indolo[3,2,1-jk]carbazole-based nanographenes (ICz-NGs) were designed and synthesized. Organic light-emitting diodes employing these ICz-NGs as emitters exhibited blue and green emissions with small full width at half maxima of 18–23 nm.

“Supramolecular chirality induction” from cholate assembly, along with non-covalent sensitization of various lanthanide emission, provides an efficient induction of tunable CPL in lanthanide-based soft materials.

We report a novel synthetic route to a series of fused acene derivatives, in which linear extension of the fully conjugated core proves to be an efficient method to tune optoelectronic properties.

The thickness of the quantum well determines the photosensitivity to linearly polarized light in metal-halide perovskite single-crystal devices.

Two benzothiadiazole-based COFs, constructed using “two-in-one” monomers, exhibit significantly different photocatalytic hydrogen generation performances due to their distinct imine bond orientations.

Using thin AlO_x as dielectrics, low-voltage polymer monolayer TFTs were attained with a SS of 86 mV dec⁻¹. The resultant unipolar and complementary inverters exhibited high voltage gains of 251 V/V at V_DD = −3 V and 841 V/V at V_DD = 5 V.

Four pairs of chiral Ag₆L₆ nanoclusters, synthesized using ligand engineering with thiazithione and oxazinthione, exhibit enhanced luminescence quantum yield attributed to S⋯S interactions and demonstrate supramolecular chirality inversion regulated by peripheral methyl and phenyl groups.

C₈H₆IN₃O₄ exhibits a substantial birefringence of 0.55 at 550 nm, surpassing commercially available birefringent materials, and this phenomenon is attributed to the uniform alignment of π-conjugated [NO₃]⁻ and [C₈H₆IN₂O]⁺ groups.

Cd-free QLEDs with tunable emission from 603 to 524 nm were constructed by regulating the non-stoichiometric Cu : Ga molar ratio, and the green QLEDs showed high performance with an EQE of 5.8% and a high brightness of 7016 cd m⁻².

We used temperature-dependent spark plasma sintering to induce phase transformations of metastable 3D c-BN to mixed-phase 3D/2D c-BN/h-BN and ultimately to the stable 2D h-BN phase at high temperature, useful for extreme-temperature technology.

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.

The additive 1-phenylnaphthalene (PN) with large steric hindrance is used to promote J-aggregation of N3 molecules, which is conductive to broadening absorption spectra and improving charge transport for high-performance thick OSCs.

This work presents a micro-cavity cathode as a replacement for the traditional thick metal cathode in natural-color TPVs, improving both aesthetic integration and stability.

High-mobility n-type organic transistors that maintain performance for over 1000 minutes under bias stress pave the way for complementary organic circuits, overcoming a key obstacle in the field.

Vinyl-containing conjugated polymers exhibiting extended conjugated skeletons with long-wavelength absorption and high carrier mobility have been widely investigated as polymer semiconductors.

The ZnPc:C₆₀ OPD based on intermolecular charge transfer absorption can sense light up to the telecommunication band by incorporating an atomic-thick Al₂O₃ layer.

Skin-inspired laminated hydrogel infused with liquid metal, exhibiting exceptional mechanical toughness and superior electrical conductivity.

Enhanced NIR phosphorescence emission in the longer-wavelength region can be produced from a highly ordered host–guest aggregate structure arising from the same crystal packing pattern of the host and guest molecules with structural similarity.

A supramolecular fluorescent probe based on unique fluorescence of Eu-complex and precise recognition of pillar[5]arene is developed for two channel simultaneous detection of H₂O₂ and ATP in living cells.

Bi_0.5Na_0.5TiO₃–BiAlO₃–NaNbO₃ multilayer ceramic capacitors were prepared as pulse power energy conversion components. An ultrahigh output power density up to 2.2 × 10⁹ W kg⁻¹ (GW kg⁻¹) with a output voltage up to 9.8 kV mm⁻¹ was achieved.

Inspired by human visual synapses, high performance and versatile infrared vision synapses can be achieved in the p-WSe₂/n-Ta₂NiS₅ van der Waals heterojunction by introducing narrow band gap materials and bias-induced band bending.

Photothermoelectric (PTE) detectors, renowned for their ultra-broadband photodetection capabilities at room temperature without requiring an external power supply, are pivotal for advancing infrared and terahertz detection technologies.

High-performance energy storage capacitors with tailored Sn-doping levels in BaTiO₃ perovskite ceramics have been developed through the implementation of entropy engineering techniques.

Three photoactive COFs containing different acceptors (BO, BT, and BSe) were designed and synthesized. The modulation of acceptors has optimized the intramolecular/interfacial charge transfer processes and improved the photocatalytic performance.

Atomistic molecular dynamics (MD) simulations of ordered and disordered P3HT at varying temperatures reveal distinct thermomechanical behavior in the amorphous and crystalline material domains.

The WS₂/ZnO QD heterojunction photodetector achieves high responsivity and ultra-fast response speed through the coexistence of charge transfer and non-radiative energy transfer.

This paper demonstrates that the lattice modes can effectively enhance the performance of modulators and complements the theory of the lattice enhancement effect, which is used to design an ultrafast modulator with decoupled resonant modulation.

The NSLN, characterized by a lower density of V⁻_Li defects and greater distortion of the NbO₆ octahedron compared to CLN, demonstrated superior piezoelectric performance and remarkable sensing capabilities.

This work reports a Schottky and PN MoS₂ photovoltaic detector with a switchable operation mode, enabling specific applications for different needs.

A facile membraneless method for detecting alkali-metal cations was developed by adding ionophores (crown ethers: 18C6 or 15C5) to a polymer matrix (p(g2T-TT)) as the active layer in organic electrochemical transistors.

A photothermoelectric (PTE) photodetector (PD) is crucial for realizing broadband detection, which is vital for the next generation of integrated multifunctional photodetectors.

The construction of a red phosphor with a negative thermal quenching effect by substituting Mg²⁺ with Sc³⁺ and its application in plant lighting.

A configuration-dependent strategy significantly boosts the photocatalytic hydrogen production efficiency of hollow core–shell heterostructures through improved light response range, carrier transport, and electron–hole separation rates.

A cascaded artificial light-harvesting system based on the platinum(II) metallacycle was constructed, which displayed high sensitivity and specificity for biothiols.

The sensing principles, performance, and applications of the iontronic sensor in posture assessment in this work.

An electrically-pumped low-threshold WGM microlaser diode based on a well-fabricated n-AlGaN/n-ZnO:Ga MW/Pt/MgO/p-GaN double heterojunction was realized.

A hybrid self-powered ZnO/Au/Ti/p-GaN UV photodetector with asymmetric interdigitated electrodes was fabricated. The design integrates ZnO/Au and p-GaN/Ti Schottky junctions with the ZnO/p-GaN heterojunction, boosting performance.

Oxide channel dual-port FeNAND devices with low-temperature processing offer improved thermal stability, broader memory window, and enhanced reliability.

One-dimensional (1D) core–shell heterostructures with uniquely abundant interfacial polarization are ideal candidates for high-performance electromagnetic (EM) materials.

The WS₂/AsP vdWHs device with a type-II band structure suppresses dark currents and improves photoelectric characteristics. It boasts a detectivity of 1.72 × 10¹³ jones and a responsivity of 14.6 A W⁻¹, showing great potential in future applications.

The remarkable conductivity change of GaN under the excitation of a thermal signal is exploited to demonstrate a hybrid GaN metamaterial device that exhibits sensitive switching of the metamaterial resonance within the terahertz spectrum.

N-MXene/metal/N-CNTs 3D scaffolds are obtained via a Lewis acidic etching method and annealing treatment, and they can exhibit excellent Na plating/stripping reversibility owing to good sodiophilicity.

Diamond photo-electric detectors with introduced silicon-vacancy color centers.

The primary uniqueness of HfO₂ is its indispensible covalent bonding nature, though its high cation coordination number reflects a typical ionic compound.

A dataset of 3720 ABX3-type perovskites and 2660 A₂B(I)B(II)X₆-type double perovskites was collected and cleaned up to train a machine learning model that predicts features such as band gaps. SHAP interpretability analysis provides new insights for bandgap evaluation.

Compared with traditional photocatalytic materials, hollow nanofibers can show greatly improved photocatalytic efficiency due to their large specific surface area and more surface-active sites.

A strategy for in situ preparation of lead-free double perovskite-based polymer composite film with large area and high efficiency white light emission and its applications.