Themed collection Journal of Materials Chemistry C HOT Papers

This perspective explores the intersection between materials research and environmental assessment during the early-stage development of next-generation wearables, encompassing flexible, stretchable, soft, transient, and printed electronics.

Lead-free halide double perovskite nanocrystals (NCs) are promising alternatives to lead-based perovskites, offering eco-friendly composition, robust intrinsic thermodynamic stability, and tunable optoelectronic properties.

This review provides an overview of the developments in high-mobility polymers, integrating the core themes of molecular design, synthetic methods, and functional integration.

Fiber electronics possess flexibility, light weight, and seamless fabric integration, making them well suited for wearable interactive systems.

This review shows how molecular aggregation enables emergent photophysics (RTP, radical emission, NIR luminescence, photothermal, X-ray scintillation) unseen in single molecules.

Microwave dielectric ceramics with dielectric constant (ε_r ≈ 20) for 5G/6G communications, focusing on four material systems—MgTiO₃–CaTiO₃, (Ca,La)(Al,Ti)O₄, LnNbO₄, and Li₂TiO₃.

This review discusses the material selection, device design approaches, and state-of-the-art applications of wearable and implantable transient bioelectronics.

The development of piezoelectric composite (PEC) gas sensors is progressing rapidly, driven by innovations that range from atomic-level material design to system-level integration.

This review summarizes recent advances in AIP Pt(II) complexes, covering design strategies, photophysical mechanisms (RIM, RSDE, oxygen shielding), and applications in imaging, OLEDs, and sensing, while highlighting future development directions.

Metal oxide-based resistive switching memristors are emerging as promising nanodevices for the hardware implementation of neuromorphic computing. We focus on the development of a neuromorphic computing system based on metal oxide memristors.

This review provides a comprehensive overview of the molecular engineering techniques used to control polarity in two-dimensional materials and their applications in optoelectronic devices.

Alternating current electroluminescent (ACEL) devices have become an important direction for the development of visualized smart wearable e-textiles due to their advantages of light weight, flexibility, easy integration, and convenient processing.

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 deep-blue material based on a crossed long-short axis strategy and a large conjugate core, which enables high-lying reverse intersystem crossing and achieves an efficiency of 7.46% at 420 nm with CIE coordinates meeting the BT.2020 standard.

ZIF-8-assisted aqueous synthesis for green and blue perovskite phosphors with high stability.

A new mechanism—bipolar electrochemistry—is utilized to develop an ionic memristor with straightforward tuneability of its rectifying memristive current–potential response.

A rapid, green, and cost-effective method for synthesizing carbon dots (CDs) was developed using non-toxic, low-cost precursors via a simple combustion process.

Light-driven self-organized ionogel patterns with modulus gradients for ultrasensitive, customizable sensing.

Localized electron transport channel is developed in inverted PSCs with nanoscale phase-separated PM6:PCBM to inhibit interfacial recombination. Resulting PSCs exhibit high efficiency of 25.60% with good stability.

Adjacent compensated codoping (alloying) is presented as an alternative approach to modify the electrical and optoelectronic properties of semiconductors.

Mn-doped CsBr (Mn²⁺:CsBr), along with phase-engineered Cs₃MnBr₅ and CsMnBr₃ perovskite nanocrystals, were synthesized using a simple and rapid microwave-assisted method that allows for tunable emission colors and high color purity.

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.

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.

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.

Pr doping in BiFeO₃ induces lattice distortion, tunes electronic structure and the d-band center, boosting intermediate adsorption and OPM-driven *O–O* coupling. Bi_0.6Pr_0.4FeO₃@NF shows η₁₀ = 228 mV and stable 100 mA cm⁻² for 100 h in 1 M KOH.

The C₁₂IMSO₃[FeCl₄]/CNT composite attenuates electromagnetic waves through multiple dielectric and magnetic loss mechanisms, achieving an effective absorption bandwidth (EAB) of 7.44 GHz.

This study presents a method to mitigate distortion of crosslinked films through photochemical crosslinking and catalytic thiol–thioester exchange. Bond rearrangement is catalysed by base liberated on photolysis of a photobase.

Controlled vapor-assisted crystallization and the double side passivation successfully improved the performance of metal chalcohalide photovoltaic devices.

MesCzBN achieves EQE of 38.6%, and FWHM of 28 nm via mesitylene shielding, enhancing horizontal orientation and surpassing tCzBN performance.

This study demonstrates that a Ag/NiO_x/Si RRAM employing a thermally oxidized NiO_x switching layer exhibits excellent performance and outstanding device-to-device uniformity.

NiCo nanoarray foam prepared via magnetic field-induced deposition: >70 dB shielding in the high-frequency band (18–26.5 GHz), with low reflection/high absorption, facilitating the design of lightweight shielding materials.

One dimensional metal-free perovskite DABCO–NH₄I₃ displays anisotropy of carrier transport in different crystal directions.

This work assesses the thermodynamic stability of chalcogenide perovskites, evaluating tolerance factor predictions against first-principles calculations and proposing thermodynamic and chemical origins for the sparsity of these materials.

We present a high throughput virtual screening workflow for discovering new TADF-based OLED emitters, applying random mutations to existing parent emitters and filtering for simple structural features through to quantum chemical calculation outputs.

Design of polymers via Stille polymerization enables high-performance organic solar cells with improved stability, processability, and compatibility with non-halogenated solvents.

By combining materials chemistry to fine-tune crystallographic features with coherent nonlinear spectroscopy, we systematically explore how organic–inorganic interactions affect polaronic coupling in two-dimensional (2D) hybrid semiconductors.

Biological multimodal perception systems play a pivotal role in environmental interactions through the sophisticated integration of multisensory information.

This study demonstrates the applicability of the alloying strategy to reduce melting temperature (T_m) and opens the way for advancing melt-processing techniques and the applications of two-dimensional metal halide perovskites (2D MHPs).

Few-layer Nb₄C₃T_x MXene nanosheets were prepared and tested for n-butanol sensing. The SnO₂/Nb₄C₃T_x nanocomposite was also synthesized, showing excellent n-butanol sensing performance at room temperature.

Lanthanoid 2D MOFs [Ln(MeCOO)(PhCOO)₂] (Ln = Dy, Tb) were grown on silanized Si(100), retaining significant magnetic moments and green Tb luminescence, paving the way for magneto-optical and quantum information devices.

An Si nanoholes array (NHA, with a period of 300 nm)/SnO type-I heterostructure functions well as a self-powered and filterless UV photodetector and exhibits promising potential for anti-interference UV communication.

D/L-cC₃-Py1-OFN displayed pronounced CPL signals using a pre-established supramolecular template through electrostatic and AP interactions, providing a simple and facile approach to the generation of CPL activity.

Optimization procedure of the WUM.

Absorption of this WAMS for TE-mode and TM-mode EM waves propagating along the +z- and −z-directions, respectively.

ZnO NCs PEC PDs exhibit a UV responsivity of 91.52 mA W⁻¹ and response speed of 23/87 ms. A self-powered visualized UV detection system is demonstrated using ZnO NCs PEC PDs with a low detection limit and rapid response and recovery speeds.

By hybridizing the SRCT and LRCT characteristics, a sensitizer-free OLED based on BNAP demonstrated remarkable EL performance with an EQE_max of 36.1%, EQE of 32.8% at 100 cd m⁻², EL peak at 512 nm, FWHM of 36 nm, and CIE coordinates of (0.17, 0.68).

Incorporating lithium into Sr₃Sn₂O₇:Sm³⁺ enhances its mechanoluminescence, enabling applications in stress visualization and temperature monitoring.

Engineered Ag₂S/NiS_x heterostructures dramatically enhance overall water splitting efficiency and achieve OER current densities of 100 mA cm⁻² at overpotentials of only 180 mV and 100 mA cm⁻² at 1.81 V during electrolysis.

The successful fabrication of artificial synapses is essential for developing highly integrated neuromorphic devices.

The diagram of exciton management and energy transfer processes in the TADF- and phosphor-sensitized EMLs and the EL spectra from 1000 to 10 000 cd m⁻² luminance.

A new p⁺pBn⁺ barrier infrared detector was designed via MBE technology, significantly reducing the room temperature dark current and enhancing the detectivity, which provides a promising solution for next-generation uncooled MWIR detectors.

TABD shows intramolecular non-covalent interactions, which facilitate better molecular planarity and enhanced hole mobility. Perovskite solar cells based on TABD exhibited high efficiency and excellent stability.

A π-extended tetracoordinate boron [8]helicene, Hel-BNN, was synthesized, exhibiting efficient TADF and pronounced chiroptical properties. A sensitized OLED using it exhibited an EQE_max of 21.9% and displayed circularly polarized electroluminescence.

Schematic and performance of the proposed switchable band-pass filter, which comprises dual identical dielectric thin film stacks coupled to KRS-5 prisms and separated by a VO₂ thin film.

This study establishes a novel strategy for self-activated nonreciprocal transmission isolation, exploiting the absorption asymmetry to trigger directional phase transition under high-intensity illumination.

We report on the synthesis of two novel nanographenes, syn- and anti-dinaphthopentacene. This small variation in structure leads to stark differences in structural and photophysical properties as well as OLED device efficiency.

A strong vacancy compensation mechanism was developed. The twin-boundary shear and several lattice defects were nucleated. A low κ_lat value of 1.14 W m⁻¹ K⁻¹ was observed at 1073 K.

Zn₂GeO₄ (ZGeO) phosphor exhibits a wide bandgap energy, making it highly suitable for luminescence-based applications spanning the entire electromagnetic spectrum, from ultraviolet (UV) to near-infrared (NIR) wavelengths.

The constitutive relationships between electric dipole at unit cell scale and macroscopic ferroelectricity are revealed by the proposed matrix transformation model, where the theoretical S–E and P–E loops are coincident with the experimental results.

Using a “two birds with one stone” design, we devised the electron deficient monomers BTPD BTz and BTPD TTz and polymerized them via direct C–H arylation. Upon n doping, the resulting polymers achieved an electrical conductivity of 7.91 S cm⁻¹.

A bilayer PEALD ITO/ALD In₂O₃ enables conformal, smooth, transparent, and damage-free p-ohmic contacts for high-efficiency GaN-based micro- and nano-LEDs.